Golf putter head manufacturing method, golf putter head, and golf putter

Abstract

The application discloses a golf putter head manufacturing method, a golf putter head and a golf putter. The golf putter head manufacturing method comprises the following steps: providing or preparing a head body with a hitting face; dividing the hitting face into at least three sub-zones including a toe part, a middle part and a heel part, the toe part and the heel part being located at two ends of the hitting face in a length direction, and the middle part being located between the toe part and the heel part; and performing selective sub-zone electroplating treatment on the hitting face to construct an electroplating layer, so that the hardness of the toe part and the heel part on the hitting face is greater than the hardness of the middle part. Through the above method, the sub-zone independent control of the hardness of the hitting face of the putter head can be realized, the hardness distribution of the soft center and the hardened two sides of the hitting face can be realized, the gear effect can be effectively inhibited, the ball direction stability and distance consistency of the whole hitting face can be improved, the risk of thermal deformation can be avoided, the geometric precision of the hitting face can be ensured, the bonding force between the electroplating layer and the head body is strong, the electroplating layer is dense and uniform, and the durability is good, and meanwhile, the process has high flexibility and controllable cost.

Description

Technical Field

[0001] This invention relates to the field of sports equipment technology, and in particular to a method for manufacturing a golf putter head, a golf putter head, and a golf putter. Background Technology

[0002] The putter is a specialized club used in golf to strike the ball into the hole on the green, and its performance directly affects a player's final score. During a putt, when the golf ball strikes a non-sweet spot (such as the toe or heel), the clubhead spins at impact because the point of contact deviates from the clubhead's center of gravity; this physical phenomenon is known as the "gear effect."

[0003] Specifically, for right-handed players, when the ball strikes at the toe, the clubface rotates clockwise (open), causing the golf ball to spin counter-clockwise (left spin), rolling to the right with a left spin; when the ball strikes at the heel, the clubface rotates counter-clockwise (close), causing the golf ball to spin clockwise (right spin), rolling to the left with a right spin. This gear effect, resulting in sidespin and directional deviation, is one of the main reasons for the low forgiveness and inconsistent distance control in putting.

[0004] To improve the putting ability, existing research has explored the structure and surface treatment of the putting face, but the following shortcomings still exist: First, the overall hardness of the existing traditional putter face, whether it is forged or integrally molded, is basically the same. When an off-center shot occurs, the uniform hardness of the face makes it difficult to actively suppress the gear effect.

[0005] Secondly, some existing technologies perform overall heat treatment or coating on the clubhead, which increases the hardness of all parts of the clubhead simultaneously, but cannot effectively suppress the secondary wheel effect.

[0006] In addition, to obtain different physical properties on the hitting surface, existing technologies attempt to combine multiple panel units of different hardness to form a composite hitting surface, or to perform heat treatment on different areas separately, or to use lasers to modify the surface of local areas. However, the spliced ​​structure not only involves complex processing procedures and large cumulative tolerances, making it difficult to guarantee the overall flatness of the hitting surface and affecting the accuracy of the shot, but also the seams between different panels affect the feel and appearance quality of the shot. When the ball hits the seam area, it may produce an unpredictable rebound response, and there is also a risk of detachment or loosening after long-term use. The method of heat treating different areas separately requires high production conditions, makes hardness control difficult, and has high processing difficulty and cost. While laser surface treatment has a smaller heat-affected zone, it has the risk of thermal deformation, and the equipment cost is high and the processing efficiency is low.

[0007] Therefore, there is an urgent need for a technical solution that can adjust the hardness of different areas of the striking face through flexible, convenient, and low-cost surface treatment methods without compromising the overall structural integrity of the striking face. This would allow for proactive management of the gear effect during putter strokes, thereby improving the stability of the ball's direction and the consistency of distance across the entire striking face. Summary of the Invention

[0008] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a method for manufacturing a golf putter head.

[0009] A second objective of this invention is to provide a golf putter head.

[0010] A third objective of this invention is to provide a golf putter.

[0011] A first aspect of the present invention provides a method for manufacturing a golf putter head, comprising the following steps: S1. Provide or prepare a club head body, the club head body having a striking face; S2. Dividing the striking surface into regions, including: dividing the striking surface into at least three partitions, the at least three partitions including three main partitions: toe, middle and root, the toe and the root being located at opposite ends of the striking surface along its length, and the middle being located between the toe and the root; S3. Selectively partition the striking surface to construct an electroplating layer, such that the hardness of the toe and the root of the striking surface is greater than that of the middle part.

[0012] The golf putter head manufacturing method according to embodiments of the present invention has at least the following beneficial effects: This golf putter head manufacturing method divides the striking face of the putter head into at least three main zones: the toe, center, and heel. By selectively electroplating these zones, the hardness of the toe and heel is made greater than that of the center. Higher hardness in a particular area of ​​the putter's striking face results in a higher coefficient of rebound (COR) at impact, leading to less energy loss in that area. Therefore, when the toe area is hardened, the toe of the putter head receives higher rebound force at impact, counteracting the tendency for the clubface to open up and returning it to a neutral position. Conversely, when the heel area is hardened, the heel of the putter head receives higher rebound force at impact, counteracting the tendency for the clubface to close up and returning it to a neutral position. Thus, this manufacturing method, through zoned electroplating, achieves a hardness distribution with a soft center (or middle) and hardened sides (toe / heel), effectively suppressing the gear effect and improving the stability of the ball's direction during off-center shots.

[0013] Furthermore, because the gear effect is effectively suppressed, the sidespin of the golf ball is reduced during eccentric shots, and the ball's rolling direction is closer to the target line. At the same time, through zoned hardness control, the difference in the final distance of the golf ball after being hit by different parts of the ball is reduced, which can improve the forgiveness and distance consistency of the entire hitting face of the putter, and enhance the stability of the putt.

[0014] In addition, the selective zone electroplating process allows for differentiated hardness control in different areas of the same clubhead body, offering flexibility, convenience, and low cost. Furthermore, the low-temperature electroplating process avoids the risk of thermal deformation, helping to maintain the geometric accuracy and structural integrity of the hitting face and improving the consistency of the feel. Moreover, the strong adhesion between the electroplated layer and the hitting face of the clubhead body, along with the dense and uniform coating, ensures good durability and helps maintain long-term performance stability.

[0015] Therefore, this manufacturing method can achieve independent control of the hardness of the putter head's striking surface through selective zone electroplating, effectively suppressing the gear effect and improving the stability of the ball's direction and distance consistency across the entire striking surface. At the same time, it offers high process flexibility and controllable costs.

[0016] According to some embodiments of the present invention, after dividing the striking surface into regions and before performing selective zone electroplating on the striking surface, the process includes: The hardness distribution design of the striking surface includes: setting the target hardness of each zone, such that the hardness of the toe and the root is greater than that of the middle zone; The initial hardness of each zone on the impact surface is detected; The required hardness increment for each zone is calculated based on the target hardness and initial hardness of each zone. In step S3, selectively partitioning the impact surface for electroplating includes: according to the calculated hardness increment required for each partition, electroplating is performed on each partition in sequence to construct an electroplating layer, so that each partition reaches the target hardness.

[0017] According to some embodiments of the present invention, after selectively partitioning the striking surface for electroplating, the hardness of the toe and / or the root is 130% to 300% of the hardness of the middle portion.

[0018] In some embodiments, after selectively partitioning the striking surface with electroplating, the hardness of the toe and the root is 130% to 300% of the hardness of the middle portion; wherein, the hardness of the toe and the root may be the same or different.

[0019] According to some embodiments of the present invention, in step S2, dividing the striking surface into at least three partitions specifically includes: first dividing the striking surface into three main partitions, the three main partitions including the toe, the middle and the root; then dividing at least one of the three main partitions into at least two sub-partitions along the width direction of the striking surface.

[0020] In some embodiments, step S2, dividing the striking surface into at least three partitions, specifically includes: first dividing the striking surface into three main partitions, the three main partitions including the toe, the middle, and the root; then dividing each of the three main partitions into two sub-partitions along the width direction of the striking surface, so that the striking surface is divided into six partitions. Further, in some embodiments, the six partitions are arranged in a linear array of two rows and three columns.

[0021] In some embodiments, step S2, dividing the striking surface into at least three partitions, specifically includes: first dividing the striking surface into three main partitions, the three main partitions including the toe, the middle, and the root; then dividing each of the three main partitions into three sub-partitions along the width direction of the striking surface, so that the striking surface is divided into nine partitions. Further, in some embodiments, the nine partitions are arranged in a linear array of three rows and three columns, forming a nine-square grid.

[0022] According to some embodiments of the present invention, in step S2, dividing the striking surface into at least three partitions specifically includes: first dividing the striking surface into three main partitions, the three main partitions including the toe, the middle and the root; then dividing at least one of the three main partitions into at least three sub-partitions along the width direction of the striking surface; In step S3, selective partition electroplating is performed on the striking surface to construct an electroplating layer, so that the hardness of the toe and the root on the striking surface is greater than the hardness of the middle part, and in the main partition containing at least three sub-partitions, the hardness of the outermost sub-partition is greater than the hardness of the middle sub-partition (i.e., the sub-partition between the two outermost sub-partitions).

[0023] According to some embodiments of the present invention, in step S2, the striking surface is divided into at least three partitions, specifically including: first dividing the striking surface into three main partitions, the three main partitions including the toe, the middle and the root; then dividing each of the three main partitions into three sub-partitions along the width direction of the striking surface, so that the striking surface is divided into nine partitions; Furthermore, in step S3, selective partition electroplating is performed on the striking surface to construct an electroplating layer, such that the hardness of the toe and the root on the striking surface is greater than the hardness of the middle part, and at least the hardness of the outermost sub-partition on the middle part is greater than the hardness of the middle sub-partition.

[0024] For example, in step S3, the selective partitioning electroplating process for constructing the electroplated layer on the striking surface can control the hardness of the toe and root to be greater than that of the middle, while simultaneously controlling the hardness of the outermost sub-partition on the middle to be greater than that of the middle sub-partition. Additionally, in some embodiments, the hardness of the outermost sub-partition on the toe and / or root can also be controlled to be greater than that of the middle sub-partition.

[0025] According to some embodiments of the present invention, in step S1, the material of the rod head body is a metal material, which may include at least one of stainless steel, carbon steel or alloy steel.

[0026] According to some embodiments of the present invention, in step S3, the electroplated layer includes at least one of a hard chromium layer, a nickel layer, a nickel-cobalt alloy layer, or a copper buffer layer.

[0027] According to some embodiments of the present invention, the striking surface includes a plurality of grooves, and the electroplated layer covers the inner wall and bottom of the grooves.

[0028] In a second aspect, the present invention provides a golf putter head manufactured using any of the aforementioned golf putter head manufacturing methods of the present invention.

[0029] The technical solution of the present invention regarding the golf putter head has at least the following beneficial effects: The golf putter head of the embodiment of the present invention is made by any of the aforementioned golf putter head manufacturing methods of the present invention, thereby having all the beneficial effects of the golf putter head manufacturing method, which will not be elaborated further.

[0030] A third aspect of the invention provides a golf putter comprising any of the aforementioned golf putter heads of the invention.

[0031] The technical solution of the present invention regarding the golf putter has at least the following beneficial effects: The golf putter of the present invention includes any of the golf putter heads mentioned above, thereby having all the beneficial effects of a golf putter head, which will not be elaborated further. Attached Figure Description

[0032] Figure 1 This is a schematic diagram illustrating the division of the striking surface area on the clubhead body in one embodiment of the golf putter head manufacturing method of the present invention; Figure 2 This is a schematic diagram illustrating the division of the striking surface area on the clubhead body in another embodiment of the golf putter head manufacturing method of the present invention; Figure 3 This is a schematic diagram illustrating the division of the striking surface area on the putter head body in another embodiment of the golf putter head manufacturing method of the present invention.

[0033] Reference numerals: shaft head body 100, striking face 110, toe 111, upper toe section 111-a, middle toe section 111-b, lower toe section 111-c, middle section 112, upper middle section 112-a, middle middle section 112-b, lower middle section 112-c, root 113, upper root section 113-a, middle root section 113-b, lower root section 113-c. Detailed Implementation

[0034] The following will describe the concept and technical effects of the present invention clearly and completely with reference to embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention.

[0035] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. "At least one" means one or more, and "more than two" means two or more.

[0036] In the description of this invention, references to terms such as "one embodiment," "some embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Traditional golf putter shots often exhibit a "gear effect," meaning that when the putter strikes the ball outside the sweet spot (i.e., the off-center striking area, such as the toe or heel), the clubhead spins at impact because the point of contact deviates from the clubhead's center of gravity. For example, when striking the ball with the toe, the clubface rotates clockwise (opens up), causing the ball to roll to the right with a left spin; while when striking the ball with the heel, the clubface rotates counterclockwise (closes up), causing the ball to roll to the left with a right spin. This gear effect, resulting in sidespin and directional deviation, directly leads to low putter forgiveness and inconsistent distance control.

[0038] In this regard, the first aspect of the present invention provides a method for manufacturing a golf putter head, see [link to relevant documentation]. Figures 1-3 It includes the following steps: S1. Provide or prepare a club head body 100, the club head body 100 having a striking face 110; S2. Divide the striking surface 100 into regions, including: dividing the striking surface into at least three regions, including three main regions: toe 111, middle 112 and root 113. Toe 111 and root 113 are located at the two ends of the striking surface 110 in the length direction, respectively, and middle 112 is located between toe 111 and root 113. S3. Selectively perform zoned electroplating on the impact surface 110 to construct an electroplated layer, such that the hardness of the toe portion 111 and the root portion 113 of the impact surface 110 is greater than that of the middle portion 112. Specifically, the hardness can be HRB hardness, which is measured using the Rockwell hardness test method.

[0039] The higher the stiffness of a certain area of ​​the putter's striking face, the higher the coefficient of rebound (COR) of that area at impact, and the less energy loss the clubhead experiences in that area. When the toe area 111 is stiffened, the toe area 111 of the clubhead receives a higher rebound force at impact, which can counteract the tendency of the clubface to open up and bring the clubface back to center. Similarly, when the heel area 113 is stiffened, the heel area 113 of the clubhead receives a higher rebound force at impact, which can counteract the tendency of the clubface to close up and bring the clubface back to center. The above manufacturing method selectively electroplates the striking surface 110 of the clubhead body 100, ensuring that the hardness of the toe 111 and root 113 on the striking surface 110 after the electroplating layer is constructed is greater than that of the middle 112. This achieves a hardness distribution that is soft in the center and hardened on both sides (toe 111 and root 113), effectively suppressing the gear effect. This makes the ball release direction of the toe 111 and root 113 significantly straighter when hitting the ball, and the rolling speed is close to that of the sweet spot (i.e., the effective hitting area of ​​the clubhead, such as the middle 112), achieving full sweet spot optimization. When hitting off-center, the directional deviation is reduced, which can significantly improve the margin of error; the rebound coefficient when hitting off-center can be compensated, and the roll distance is closer to the center of the shot, improving the distance consistency of the entire hitting face and the stability of the putt; in addition, the selective zone electroplating treatment is a low-temperature process, which can avoid the risk of thermal deformation and damage to the hitting face 110, and help maintain the geometric accuracy and structural integrity of the hitting face 110; the electroplating layer has a strong bond with the hitting face 110 of the clubhead body 100 and the plating layer is dense and uniform, with good durability, which helps maintain long-term performance stability.

[0040] In step S1, the striking surface 110 on the clubhead body 100 is the surface that contacts the golf ball during impact. The clubhead body 100 is made of metal, which may include, but is not limited to, stainless steel (such as 304, 316, 420, 440C, 17-4PH, etc.), carbon steel (such as S35C, etc.), or at least one of alloy steel.

[0041] like Figure 1As shown, in some embodiments, in step S2, the striking surface 110 is divided into three regions: the toe portion 111, the middle portion 112, and the root portion 113. The toe portion 111 and the root portion 113 are located at the two ends of the striking surface 110 along its length, respectively, and the middle portion 112 is located between the toe portion 111 and the root portion 113, which is the central region of the striking surface 110.

[0042] In some embodiments, the striking surface 110 is divided into regions, specifically into at least three partitions. This may include: first, dividing the striking surface 110 into three main partitions, the three main partitions being a toe 111, a middle part 112, and a root 113, with the toe 111 and the root 113 located at opposite ends of the striking surface 110 along its length, and the middle part 112 located between the toe 111 and the root 113; then, dividing at least one of the three main partitions (i.e., the toe 111, the middle part 112, and the root 113) into at least two sub-partitions along the width of the striking surface 110.

[0043] For example, the toe portion 111 can be divided into two toe sub-divisions along the width direction of the striking surface 110, including the upper toe sub-division 111-a and the lower toe sub-division 111-c; or, the toe portion 111 can be divided into three toe sub-divisions along the width direction of the striking surface 110, including the upper toe sub-division 111-a, the middle toe sub-division 111-b, and the lower toe sub-division 111-c. Similarly, the middle portion 112 can be divided into two middle sub-divisions along the width direction of the striking surface 110, including the upper middle sub-division 112-a and the lower middle sub-division 112-c; or, the middle portion 112 can be divided into three middle sub-divisions along the width direction of the striking surface 110, including the upper middle sub-division 112-a, the middle middle sub-division 112-b, and the lower middle sub-division 112-c. For example, the root 113 can be divided into two root sub-regions along the width of the striking surface 110, including the upper root sub-region 113-a and the lower root sub-region 113-c; or, the root 113 can be divided into three root sub-regions along the width of the striking surface 110, including the upper root sub-region 113-a, the middle root sub-region 113-b, and the lower root sub-region 113-c. The toe 111, the middle 112, and the root 113 can each have multiple sub-regions, such as four or five.

[0044] Specifically, in some embodiments, after dividing the striking surface 110 into three main sections along its length—the toe section 111, the middle section 112, and the root section 113—one of the three main sections (the toe section 111, the middle section 112, and the root section 113) can be further divided into at least two sub-sections along the width direction of the striking surface 110. For example, after dividing the striking surface 110 into three main sections along its length—the toe section 111, the middle section 112, and the root section 113—the middle section 112 can be further divided into three sub-sections along the width direction of the striking surface 110, including the upper middle section 112-a, the middle middle section 112-b, and the lower middle section 112-c. Thus, the striking surface 110 is divided into five sections.

[0045] In some embodiments, after dividing the striking surface 110 into three main regions along its length direction—the toe region 111, the middle region 112, and the root region 113—two of the three main regions (such as the toe region 111 and the middle region 112, the toe region 111 and the root region 113, or the middle region 112 and the root region 113) along the width direction of the striking surface 110 can be further divided into at least two sub-regions. The number of sub-regions in these two main regions can be the same or different.

[0046] For example, after dividing the striking surface 110 along its length into three main sections—the toe section 111, the middle section 112, and the root section 113—the toe section 111 and the root section 113 can be further divided along the width direction of the striking surface 110 into two sub-sections. Thus, the toe section 111 includes an upper toe section 111-a and a lower toe section 111-c, and the root section 113 includes an upper root section 113-a and a lower root section 113-c. In this way, the striking surface 110 is divided into five sections; or, after dividing the striking surface 110 along its length into three main sections—the toe section 111, the middle section 112, and the root section 113—the striking surface 110 can be further divided along its width direction into two sub-sections. After dividing the length direction into three main sections—toe 111, middle 112, and root 113—the toe 111 and root 113 can be further divided into three sub-sections along the width direction of the striking surface 110. Thus, the toe 111 includes the upper toe section 111-a, the middle toe section 111-b, and the lower toe section 111-c, and the root 113 includes the upper root section 113-a, the middle root section 113-b, and the lower root section 113-c. In this way, the striking surface 110 is divided into seven sections.

[0047] In some embodiments, after dividing the striking surface 110 into three main regions along its length direction—the toe region 111, the middle region 112, and the root region 113—the three main regions (the toe region 1111, the middle region 112, and the root region 113) can be further divided into at least two sub-regions along the width direction of the striking surface 110. The number of sub-regions in the three main regions can be the same, different, or partially the same.

[0048] For example, in some embodiments, after dividing the striking surface 110 into three main sections along its length—the toe section 111, the middle section 112, and the root section 113—each of the three main sections can be further divided into two sub-sections along the width direction of the striking surface 110. Thus, the toe section 111 includes an upper toe section 111-a and a lower toe section 111-c; the middle section 112 includes an upper middle section 112-a and a lower middle section 112-c; and the root section 113 includes a lower root section 113-a and a lower root section 113-c. In this way, the striking surface 110 is divided into six sections. Furthermore, the six sections of the striking surface 110 can be arranged in a linear array of two rows and three columns, such as... Figure 2 As shown.

[0049] For example, in some embodiments, after dividing the striking surface 110 into three main sections along its length—the toe section 111, the middle section 112, and the root section 113—it can be further divided into three sub-sections along the width direction of the striking surface 110. Thus, the toe section 111 includes an upper toe section 111-a, a middle toe section 111-b, and a lower toe section 111-c; the middle section 112 includes an upper middle section 112-a, a middle middle section 112-b, and a lower middle section 112-c; and the root section 113 includes a lower root section 113-a, a middle root section 113-b, and a lower root section 113-c. In this way, the striking surface 110 is divided into nine sections. Furthermore, the nine sections of the striking surface 110 can be arranged in a linear array of three rows and three columns, forming a 3x3 grid structure, such as... Figure 3 As shown.

[0050] By dividing the striking face 110 into the aforementioned regions, and combining this with subsequent selective zone electroplating, independent and precise hardness control from the center to both sides can be achieved, thereby enabling refined management of the gear effect. In particular, by further subdividing at least one of the toe 111, middle 112, and heel 113 into multiple sub-zones, this refinement facilitates customized hardness distribution matching designs for different clubhead models or player habits. Specifically, based on the actual needs of different clubhead models, player habits, and striking positions, hardness gradients can be flexibly set in both length and width dimensions, thereby more precisely suppressing the "gear effect." For example, based on the above-mentioned detailed partitioning, the subsequent selective partitioning electroplating process can independently set the hardness value for each partition according to the clubface geometry, center of gravity position, and groove design of each clubhead model. This not only compensates for the rebound of the toe 111 and heel 113 in the horizontal direction, but also takes into account the energy difference between high and low impact points in the vertical direction, which is conducive to achieving composite torque correction of the entire hitting face. In addition, according to the clubface geometry and center of gravity offset, selective partitioning electroplating can make the toe 111 and heel 113 or their respective sub-parts have different hardnesses, so that the hardness distribution is precisely matched with the actual physical characteristics of the clubhead, thereby further improving the forgiveness, distance consistency and putting stability, and making the entire hitting face achieve a full sweet spot effect.

[0051] Furthermore, in some embodiments, after dividing the striking surface 110 into regions in step S2, and before performing selective zone electroplating on the striking surface 110, the following operations may be performed first: ① First, design the hardness distribution of the striking surface 110. Specifically, set the target hardness for each zone, ensuring that the hardness of the toe 111 and root 113 of the striking surface 110 is greater than that of the middle 112. ② Then, perform initial hardness testing, specifically including: testing the initial hardness of each zone on the striking surface 110. ③ Next, calculate the hardness increment, specifically including: calculating the required hardness increment for each zone according to the formula "hardness increment = target hardness - initial hardness" based on the target hardness and initial hardness of each zone.

[0052] Based on the above, in step S3, selectively performing zoned electroplating on the impact surface 110 to construct an electroplating layer may specifically include: according to the calculated hardness increment of each zone, performing electroplating on each zone in sequence to construct an electroplating layer, so that each zone reaches the target hardness.

[0053] Before electroplating each zone, selective masking can be performed based on the hardness distribution design. Specifically, in the selective zone electroplating process, other zones can be masked before electroplating the target zone. For example, high-temperature resistant insulating components (such as insulating tape) can be used to mask other zones that do not need electroplating, exposing only the target zone. Then, the target zone is electroplated to build the electroplating layer, and the masking is removed after plating. Subsequently, other zones can be electroplated sequentially using a similar method as needed. In this way, selective masking can be used to assist in selective zone electroplating. Furthermore, during the selective zone electroplating process, the electroplating parameters of each zone can be independently controlled, resulting in high operational flexibility and controllability.

[0054] In some embodiments, the electroplated layer may include, but is not limited to, at least one of a hard chrome layer, a nickel layer, a nickel-cobalt alloy layer, or a copper buffer layer. Specifically, the electroplating material and parameters such as electroplating time, thickness, and density can be selected and controlled according to the hardness requirements of each zone.

[0055] In some embodiments, after selectively partitioning the striking surface 110 with electroplating, the hardness of the toe portion 111 and / or the root portion 113 can be controlled to be 130% to 300% of the hardness of the middle portion 112 (e.g., any value or a range of any two of 130%, 135%, 140%, 145%, 150%, 160%, 165%, 170%, 180%, 190%, 200%, 205%, 210%, 220%, 225%, 230%, 240%, 250%, 255%, 260%, 270%, 280%, 290%, 300%), that is, to make the toe portion 111 and / or the root portion 113 gain a hardness increase of 30% to 200% relative to the middle portion 112, thereby generating a higher local rebound coefficient when hitting the ball in this area.

[0056] For example, in some embodiments, the hardness of the toe portion 111 can be controlled to be 130% to 300% of the hardness of the middle portion 112; in some embodiments, the hardness of the root portion 113 can be controlled to be 130% to 300% of the hardness of the middle portion 112; and in some embodiments, the hardness of both the toe portion 111 and the root portion 113 can be controlled to be 130% to 300% of the hardness of the middle portion 112. Further, in some embodiments, after selectively partitioning the striking surface 110 for electroplating, the hardness of the toe portion 111 and / or the root portion 113 can be controlled to be 150% to 200% of the hardness of the middle portion 112, that is, the hardness of the toe portion 111 and / or the root portion 113 partitions is increased by 50% to 100% relative to the middle portion 112 partitions.

[0057] In some embodiments, the hardness of the central portion 112 or after the electroplating layer is formed on the central portion 112 can be controlled within the range of HRB 70 to 90. For example, the hardness of the central portion 112 or after the electroplating layer is formed on the central portion 112 can be, but is not limited to, any value or a range of any two of HRB 70, HRB 72, HRB 75, HRB 78, HRB 80, HRB 83, HRB 85, ​​HRB 87, HRB 89, and HRB 90.

[0058] In some embodiments, in step S2, the striking surface 110 is divided into three main sections along its length: a toe section 111, a middle section 112, and a root section 113. Then, at least one of the three main sections is further divided into at least two sub-sections along the width of the striking surface 110. In step S3, each section (including the main sections and / or sub-sections) is subjected to a selective partitioning electroplating process. In addition to controlling the hardness of the toe section 111 and the root section 113 to be greater than that of the middle section 112, the hardness of each sub-section of the main section can be controlled to be the same or different according to actual needs (such as the geometry and center of gravity offset of the striking surface).

[0059] For example, in some embodiments, in step S2, at least one of the toe portion 111, the middle portion 112, and the root portion 113 is divided into three or more sub-regions along the width direction of the striking surface 110; and in the selective partitioning electroplating process of step S3, the hardness of the toe portion 111 and the root portion 113 can be controlled to be greater than that of the middle portion 112, while controlling the hardness of the outermost sub-region in the main partition containing at least three sub-regions to be greater than that of the middle sub-region (i.e., the sub-region between the two outermost sub-regions).

[0060] Furthermore, for example, in some embodiments, in step S2, the middle portion 112 is divided into three sub-regions along the width direction of the striking surface 110: an upper middle sub-region 112-a, a middle middle sub-region 112-b, and a lower middle sub-region 112-c. In the selective partitioning electroplating process of step S3, the hardness of the toe portion 111 and the root portion 113 can be controlled to be greater than that of the middle portion 112, and the hardness of the upper middle sub-region 112-a and the lower middle sub-region 112-c can be greater than that of the middle middle sub-region 112-b. Even further, the toe portion 111 and the root portion 113 can be further subdivided using a similar method, and in the selective partitioning electroplating process of step S3, the hardness of each sub-region in the toe portion 111 and the root portion 113 can be controlled according to actual needs, so that the hardness distribution precisely matches the actual physical characteristics of the clubhead. In this way, by actively managing the gear effect of the putter head through the distribution of stiffness, the entire hitting surface can be transformed into a "nine-zone uniform speed" full sweet spot effect. Whether the ball is hit off-center at the toe 111, heel 113, upper or lower part, the ball direction can be automatically corrected, and the rolling speed and distance are consistent with the center hit.

[0061] In some embodiments, the entire clubhead body 100 can be made of the same material, resulting in the same initial hardness across all regions of the striking face 110. Further, selective zone electroplating can be used to construct electroplating layers on the toe 111 and root 113 of the striking face 110 to increase the hardness of the toe 111 and root 113, making their hardness greater than that of the center 112. The hardness of the toe 111 and root 113 after electroplating can be controlled to be the same or different. For example, a symmetrical approach can be used to control the hardness increment of the toe 111 and root 113 to be the same; or an asymmetrical approach can be used to control the hardness increment of the toe 111 and root 113 to be different based on the striking face geometry and center of gravity shift.

[0062] Furthermore, in some embodiments, based on the fact that the clubhead body 100 is made of the same material, electroplating layers can be selectively applied to the toe 111, middle 112, and root 113 on the striking face 110 through a zoned electroplating process, and the hardness of at least the toe 111 and root 113 after electroplating is controlled to be greater than that of the middle 112. The electroplating materials of the toe 111 and root 113 can be the same or different. The electroplating material of the middle 112 is generally different from that of the toe 111 and root 113; and the hardness of the electroplating layers of the toe 111 and root 113 is greater than that of the middle 112. Even further, in some embodiments, the electroplating material of the middle 112 can be the same as the material of the clubhead body 100.

[0063] The middle section 112 maintains the same material as the clubhead body 100. This section (the sweet spot) retains the original stiffness of the body, resulting in a longer contact time and a softer feedback, preserving the original feel of the putter. The toe section 111 has increased stiffness and a higher rebound coefficient, generating a restoring torque to counteract clubface lag and reduce right spin. The heel section 113 also has increased stiffness and a higher rebound coefficient, generating a restoring torque to counteract clubface lock-in and reduce left spin. Therefore, during an off-center shot, the higher rebound force of the stiffer sides (toe 111 and heel 113) actively pushes the clubface back to the correct position, resulting in a straighter ball launch and a roll speed closer to the sweet spot.

[0064] In some embodiments, the striking surface 110 of the clubhead body 100 may include multiple grooves, wherein the grooves may be provided on at least one of the three sections of the striking surface 110: the toe 111, the middle 112, and the heel 113. Specifically, the above grooves may be provided on the middle 112 of the striking surface 110; furthermore, the above grooves may also be provided on the toe 111 and the heel 113. Furthermore, the electroplating layer constructed in the corresponding section in step S3 covers the inner wall and bottom of the groove on that section, thereby completely preserving the geometry of the groove, without affecting the geometric accuracy of the groove, and without the risk of thermal damage, thus avoiding damage or coverage limitations to the groove contour caused by laser processing.

[0065] A second aspect of the present invention provides a golf putter head manufactured using the aforementioned golf putter head manufacturing method. The putter head includes a head body 100, which has a striking face 110. The striking face 110 includes a toe portion 111, a middle portion 112, and a heel portion 113. The toe portion 111 and the heel portion 113 are located at opposite ends along the length of the striking face 110, and the middle portion 112 is located between the toe portion 111 and the heel portion 113. An electroplated layer is provided on the striking face 110, the electroplated layer comprising... The first electroplating layer and the second electroplating layer are provided on the toe portion 111 and the second electroplating layer is provided on the root portion 113. The hardness of the toe portion 111 after the first electroplating layer is provided is greater than the hardness of the toe portion 111 before the first electroplating layer is provided. The hardness of the root portion 113 after the second electroplating layer is provided is greater than the hardness of the root portion 113 before the second electroplating layer is provided. Furthermore, the hardness of both the toe portion 111 after the first electroplating layer is provided and the root portion 113 after the second electroplating layer is provided is greater than the hardness of the middle portion 112.

[0066] In some embodiments, the electroplating layer further includes a third electroplating layer, which is disposed on the middle portion 112. The hardness of the middle portion 112 after the third electroplating layer is disposed is greater than or equal to the hardness of the middle portion 112 before the third electroplating layer is disposed. The hardness of the toe portion 111 after the first electroplating film layer is disposed and the hardness of the root portion 113 after the second electroplating film layer is disposed are both greater than the hardness of the middle portion 112 after the third electroplating layer is disposed.

[0067] In addition, in some embodiments, at least one of the toe portion 111, the middle portion 112, and the root portion 113 is provided with at least two sub-partitions. Correspondingly, the electroplating layer on the partition may include at least two sub-electroplating layers. Each sub-electroplating layer is provided on each sub-partition. The hardness of each sub-electroplating layer on the partition may be the same or different, and can be set according to actual needs (such as the geometry of the striking surface and the center of gravity offset).

[0068] For example, in some embodiments, the central portion 112 includes a central upper partition 112-a, a central middle partition 112-b, and a central lower partition 112-c along the width direction of the striking surface 110. Correspondingly, the third electroplating layer includes a first sub-electroplating layer, a second sub-electroplating layer, and a third sub-electroplating layer. The first sub-electroplating layer, the second sub-electroplating layer, and the third sub-electroplating layer are respectively disposed on the central upper partition 112-a, the central middle partition 112-b, and the central lower partition 112-c. The hardness of the first sub-electroplating layer and the third sub-electroplating layer is greater than the hardness of the second sub-electroplating layer. Therefore, the hardness of the central upper partition 112-a with the first sub-electroplating layer and the hardness of the central lower partition 112-c with the third sub-electroplating layer are greater than the hardness of the central middle partition 112-b with the second sub-electroplating layer.

[0069] The above-mentioned golf putter head can be further used to manufacture golf putters. Therefore, a third aspect of the present invention provides a golf putter that includes the aforementioned golf putter head of the present invention. Furthermore, the golf putter typically also includes a shaft connected to the golf putter head.

[0070] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A method for manufacturing a golf putter head, characterized in that, Includes the following steps: S1. Provide or prepare a club head body, the club head body having a striking face; S2. Dividing the striking surface into regions, including: dividing the striking surface into at least three partitions, the at least three partitions including three main partitions: toe, middle and root, the toe and the root being located at opposite ends of the striking surface along its length, and the middle being located between the toe and the root; S3. Selectively partition the striking surface to construct an electroplating layer, such that the hardness of the toe and the root of the striking surface is greater than that of the middle part.

2. The method for manufacturing a golf putter head according to claim 1, characterized in that, After dividing the impact surface into regions and before performing selective zone electroplating on the impact surface, the process includes: The hardness distribution design of the striking surface includes: setting the target hardness of each zone, such that the hardness of the toe and the root is greater than that of the middle zone; The initial hardness of each zone on the impact surface is detected; The required hardness increment for each zone is calculated based on the target hardness and initial hardness of each zone. In step S3, selectively partitioning the impact surface for electroplating includes: according to the calculated hardness increment required for each partition, electroplating is performed on each partition in sequence to construct an electroplating layer, so that each partition reaches the target hardness.

3. The method for manufacturing a golf putter head according to claim 1, characterized in that, After selectively partitioning the striking surface with electroplating, the hardness of the toe and / or the root is 130% to 300% of the hardness of the middle part.

4. The method for manufacturing a golf putter head according to claim 1, characterized in that, In step S2, the striking surface is divided into at least three zones, specifically including: first dividing the striking surface into three main zones, the three main zones including the toe, the middle and the root; then dividing at least one of the three main zones into at least two sub-zones along the width direction of the striking surface.

5. The method for manufacturing a golf putter head according to claim 4, characterized in that, In step S2, the striking surface is divided into at least three zones, specifically including: first dividing the striking surface into three main zones, the three main zones including the toe, the middle and the root; then dividing at least one of the three main zones into at least three sub-zones along the width direction of the striking surface; In step S3, selective partition electroplating is performed on the striking surface to construct an electroplating layer, so that the hardness of the toe and the root on the striking surface is greater than the hardness of the middle part, and in the main partition containing at least three sub-partitions, the hardness of the outermost sub-partition is greater than the hardness of the middle sub-partition.

6. The method for manufacturing a golf putter head according to claim 4, characterized in that, In step S2, the striking surface is divided into at least three zones, specifically including: first dividing the striking surface into three main zones, the three main zones including the toe, the middle and the root; then dividing each of the three main zones into three sub-zones along the width direction of the striking surface, so that the striking surface is divided into nine zones; Furthermore, in step S3, selective partition electroplating is performed on the striking surface to construct an electroplating layer, such that the hardness of the toe and the root on the striking surface is greater than the hardness of the middle part, and at least the hardness of the outermost sub-partition on the middle part is greater than the hardness of the middle sub-partition.

7. The method for manufacturing a golf putter head according to claim 1, characterized in that, In step S1, the material of the rod head body includes at least one of stainless steel, carbon steel, or alloy steel; And / or, in step S3, the electroplated layer includes at least one of a hard chromium layer, a nickel layer, a nickel-cobalt alloy layer, or a copper buffer layer.

8. The method for manufacturing a golf putter head according to any one of claims 1 to 7, characterized in that, The striking surface includes multiple grooves, and the electroplated layer covers the inner walls and bottom of the grooves.

9. A golf putter head, characterized in that, It is manufactured using the golf putter head manufacturing method according to any one of claims 1 to 8.

10. A golf putter, characterized in that, Includes the golf putter head as described in claim 9.

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