Metal blank

Abstract

The utility model relates to a metal blank and relates to the technical field of powder metallurgy, the metal blank comprises a blank body and a boss, and the blank body is provided with an upper surface and a lower surface opposite to the upper surface; the bosses are arranged at the two ends, in the width direction of the blank body, of the upper surface and extend in the length direction of the blank body. The problem that an existing metal blank is prone to deformation after being sintered can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder metallurgy, in particular to a metal blank. BACKGROUND

[0002] Metal blanks play an important role in modern manufacturing, especially in precision machining and high-performance material preparation. With the continuous progress of industrial technology, the quality requirements for metal blanks are becoming higher and higher, not only to ensure dimensional accuracy, but also to ensure stability during machining and sintering.

[0003] In the process of powder metallurgy production, metal blanks are prone to deformation during sintering, which not only affects the quality of the final product, but also increases production costs and scrap rates. CONTENT OF THE INVENTION

[0004] The present application provides a metal blank to solve the problem of easy deformation after sintering of the current metal blank.

[0005] A metal blank, comprising:

[0006] A blank body provided with an upper surface and a lower surface opposite to the upper surface;

[0007] A boss provided at both ends of the upper surface along the width direction of the blank body and extending along the length direction of the blank body.

[0008] By adopting the above technical solution, the boss is provided at both ends of the upper surface along the width direction of the blank body and extends along the length direction of the blank body. When the metal blank needs to be pressed for the next forming process, the support plate and the flat plate for pressing can be used to abut the lower surface of the blank body and the boss of the upper surface, respectively, so as to facilitate physical pressing of the metal blank by the flat plate, making the metal blank uniformly stressed, and effectively preventing the problem of easy deformation of the metal blank after sintering.

[0009] In one embodiment, the boss is detachably connected to the blank body.

[0010] By adopting the above technical solution, the detachable connection design of the boss and the blank body allows quick replacement or repair, improving production efficiency and maintenance convenience.

[0011] In one embodiment, the lower surface is provided with a reinforcing rib extending along the length direction of the blank body.

[0012] By adopting the technical scheme, the reinforcing ribs of the lower surface increase the strength and rigidity of the blank main body, effectively improve the anti-deformation capability of the blank main body, and meanwhile, the contact area with the supporting plate or the flat plate is reduced, and the blank main body is more easily separated from the supporting plate or the flat plate after sintering.

[0013] In one of the embodiments, the metal blank further comprises a reinforcing plate, the reinforcing plate is arranged on the upper surface, the reinforcing plate is located between the two bosses and extends along the length direction of the blank main body.

[0014] By adopting the technical scheme, the reinforcing plate arranged between the bosses provides additional support, enhances the stability of the whole structure, and further improves the anti-deformation capability of the metal blank.

[0015] In one of the embodiments, the reinforcing plate is detachably connected with the blank main body.

[0016] By adopting the technical scheme, the detachable connection between the reinforcing plate and the blank main body is beneficial to processing the blank main body into a required shape after sintering.

[0017] In one of the embodiments, the height of the boss is consistent with the height of the reinforcing plate.

[0018] By adopting the technical scheme, the consistency of the height of the boss and the reinforcing plate enables the flat plate to abut against the upper surface of the boss and the reinforcing plate, ensures the uniformity of the pressure distribution, and further improves the anti-deformation capability of the metal blank.

[0019] In one of the embodiments, the boss and the reinforcing plate are both provided with an abutting piece at the end away from the blank main body.

[0020] By adopting the technical scheme, the abutting piece abuts against the flat plate, reduces the contact area, and makes the metal blank more easily separated from the flat plate above the blank after sintering.

[0021] In one of the embodiments, the blank main body is provided with a plurality of through holes.

[0022] By adopting the technical scheme, the plurality of through holes provided on the blank main body helps to reduce the weight, and can be used for installation, fixation or connection with other components.

[0023] In summary, the present application at least includes one beneficial effect:

[0024] 1. By setting bosses and reinforcing plates extending along the length direction on the upper surface of the blank body and reinforcing ribs on the lower surface, the strength and rigidity of the blank body are effectively increased; at the same time, the support plate abuts against the reinforcing ribs of the metal blank, multiple metal blanks are stacked sequentially along the direction of gravity, and the metal blanks are isolated from each other by a flat plate. Physical pressure is applied to the metal blanks by gravity to prevent them from deforming during sintering.

[0025] 2. By setting abutment parts on the upper end face of the boss and the reinforcing plate, and reinforcing ribs on the lower surface of the metal blank, the abutment parts abut against the flat plate, and the reinforcing ribs abut against the support plate and the flat panel, the contact area is reduced, so that after sintering, the metal blank can easily separate from the support plate and the flat panel, effectively preventing adhesion.

[0026] 3. By setting limiting components on the support plate and the flat plate, the problem of metal blanks easily detaching from the support plate and the flat plate is effectively prevented, avoiding the deformation problem caused by the inability to apply physical pressure due to detachment. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a blank product provided in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the structure of a blank body and a boss provided in an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the overall structure of a metal blank provided in an embodiment of this application;

[0030] Figure 4 This is a bottom view structural diagram of a metal blank provided in an embodiment of this application;

[0031] Figure 5 This is a front view structural diagram of a metal blank provided in an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of a physical pressurization structure provided in an embodiment of this application;

[0033] Figure 7 This is a schematic diagram of the structure of a planar plate provided in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Metal blank; 11. Blank body; 111. Upper surface; 112. Lower surface; 113. Through hole; 114. Reinforcing rib; 12. Boss; 13. Reinforcing plate; 14. Abutting part; 2. Physical pressure structure; 21. Support plate; 22. Flat plate; 23. Limiting part. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-7 The metal blank provided in this application will be described in further detail.

[0036] like Figure 1 As shown, in order to obtain the blank product, the blank is usually sintered after being processed into the shape of the blank. However, the two ends of the blank are prone to deformation and bending during sintering, and the boss is only set on half of the blank body, which leads to uneven stress on the blank body and difficulty in physically pressing to suppress deformation, making the product unusable. Therefore, in order to solve this problem, the metal blank 1 of this application is sintered by physical pressing through the support plate 21 and the flat panel 22, which can effectively prevent deformation. After sintering, the required blank product can be obtained through processing.

[0037] Example 1

[0038] Please see Figures 2-7 The metal blank 1 provided in this application embodiment includes a blank body 11 and a boss 12.

[0039] like Figures 2 to 4 As shown, the blank body 11 has an upper surface 111 along the direction of gravity and a lower surface 112 opposite to the upper surface 111. Both the upper surface 111 and the lower surface 112 are flat planes. The blank body 11 can be square and made of various materials, such as steel, aluminum alloy or other high-strength alloy materials. The specific material selection depends on the requirements of the specific application scenario.

[0040] The blank body 11 may have multiple through holes 113 to reduce weight, and may also be assembled with other components through the through holes 113. The diameter and spacing of the through holes 113 can be adjusted according to actual needs to meet different usage requirements.

[0041] The bosses 12 are located at both ends of the upper surface 111 along the width direction of the blank body 11 and extend along the length direction of the blank body 11. The purpose of the bosses 12, which are positioned along the entire length of the blank body 11, is to ensure uniform stress distribution when the blank body 11 is physically pressurized, thereby reducing the risk of deformation during sintering. The height of the bosses 12 can be adjusted according to actual needs to ensure sufficient support without being too high and affecting processing operations. The shape of the bosses 12 can be rectangular to accommodate planar pressure distribution. The bosses 12 can be made of the same material as the blank body 11 or a different material, such as carbon fiber composite material, to improve its strength and heat resistance.

[0042] To further enhance the rigidity and stability of the metal blank 1, the boss 12 and the blank body 11 can be connected in a detachable manner. For example, it can be achieved by bolt connection, buckle connection or magnetic attraction connection, etc. This design makes it convenient to disassemble and reassemble when a part needs to be replaced or repaired, improving the flexibility and service life of the metal blank 1. Specifically, screw holes can be provided on the boss 12 to fix the boss 12 on the blank body 11 by bolts; or a clamping groove can be provided on the boss 12 to fix the boss 12 on the blank body 11 by a buckle; or magnets can be provided on the boss 12 and the blank body 11 respectively to fix the boss 12 on the blank body 11 by magnetic attraction. The boss 12 can also be fixedly connected with the blank body 11 by welding or other methods, which is suitable for connecting the same material, or the boss 12 can be integrally formed with the blank body 11, which can provide high connection strength.

[0043] The upper surface 111 is also provided with a reinforcing plate 13, which is arranged between the two bosses 12 and extends along the length direction of the blank body 11. The reinforcing plate 13 further improves the rigidity and stability of the blank body 11, reducing the risk of deformation during physical pressing. The height and width of the reinforcing plate 13 can be adjusted according to actual needs, and the selection of specific materials needs to consider the mechanical requirements in the processing process. The reinforcing plate 13 and the blank body 11 can also be connected in a detachable manner. For example, it can be achieved by bolt connection, buckle connection or magnetic attraction connection, etc., which is convenient for disassembly and processing of the metal blank 1 into the required shape.

[0044] As shown in Figure 5 In the direction of gravity, the height of the boss 12 is consistent with the height of the reinforcing plate 13, which can ensure that a uniform stress support surface is formed at the upper end of the boss 12 and the reinforcing plate 13, reducing the stress concentration problem caused by inconsistent height. The height of the boss 12 and the reinforcing plate 13 can be processed by precision machining equipment to ensure that the height error is within the allowable range. For example, a numerical control machine tool can be used for processing to achieve micron-level precision.

[0045] The boss 12 and the reinforcing plate 13 are both provided with an abutting piece 14 away from the blank body 11. The height of the abutting piece 14 is generally 0.1mm to 0.2mm, which can provide sufficient spacing space without significantly increasing the overall height of the metal blank 1. The shape of the abutting piece 14 can be cylindrical, conical or other geometric shapes to adapt to different application scenarios. For example, cylindrical abutting pieces 14 are suitable for plane spacing, while conical abutting pieces 14 are suitable for point spacing. The abutting piece 14 can be made of the same material as the blank body 11, such as stainless steel or aluminum alloy, to enhance its heat resistance. The abutting piece 14 can also be fixedly connected with the boss 12 and the reinforcing plate 13 by welding, riveting or other methods.

[0046] The lower surface 112 can be provided with a reinforcing rib 114 extending along the length direction of the blank body 11. The reinforcing rib 114 can further enhance the rigidity and stability of the blank body 11, preventing deformation caused by uneven stress during processing.

[0047] The reinforcing rib 114 can be made of the same material as the blank body 11, such as stainless steel or aluminum alloy. The height and width of the reinforcing rib 114 can be 0.1mm to 0.2mm, which can provide sufficient support without significantly increasing the weight of the metal blank. The reinforcing rib 114 can be fixedly connected to the blank body 11 by welding, riveting, etc. The cross-sectional shape of the reinforcing rib 114 can be rectangular, trapezoidal or other geometric shapes to adapt to different application scenarios. In this embodiment, the reinforcing rib 114 is also rectangular. In addition, the reinforcing rib 114 and the lower surface 112 of the blank body 11 can be coated with a layer of anti-rust coating to prolong the service life.

[0048] As shown in Figures 6 to 7 The application also provides a physical pressing structure 2. Specifically, the physical pressing structure 2 includes a support plate 21, a flat plate 22 and a metal blank 1. The support plate 21 abuts against the reinforcing rib 114 provided on the lower surface 112. The flat plate 22 can abut against the boss 12 and the abutting piece 14 provided on the reinforcing plate 13, or against the reinforcing rib 114. The support plate 21 and the flat plate 22 can be made of ceramic material, which is not only heat-resistant but also heavy, facilitating physical pressing of the metal blank 1.

[0049] Specifically, the physical pressing structure 2 can be provided with multiple metal blanks 1 to facilitate simultaneous sintering. Before sintering, the support plate 21 is placed first, then the metal blank 1 is placed on the support plate 21, so that the reinforcing rib 114 of the lower surface 112 of the metal blank 1 abuts against the support plate 21. The flat plate 22 is placed above the metal blank 1, then the metal blank 1 and the flat plate 22 are continued to be placed above the flat plate 22, and are stacked in turn, so that any two metal blanks 1 are separated by the flat plate 22. The flat plate 22 abuts against the abutting piece 14 on one side, and abuts against the reinforcing rib 114 on the other side. Not only does it improve the sintering efficiency, but also it realizes physical pressing through gravity, so that the metal blank 1 remains flat during sintering and is difficult to deform. After sintering, the desired product is obtained after processing. The abutting piece 14 and the reinforcing rib 114 can reduce the contact area between the metal blank 1 and the support plate 21 and the flat plate 22, effectively preventing adhesion to the support plate 21 and the flat plate 22 after sintering.

[0050] The support plate 21 and the plane plate 22 can be provided with limiters 23, which surround the metal blank 1 and abut against the outer wall surface of the metal blank 1. The limiters 23 can be grooves or protrusions, and the shape and size of the grooves and protrusions can be designed according to the specific circumstances of the metal blank 1 to ensure the limiting effect. In the embodiment, the limiters 23 on the support plate 21 are protrusions; the limiters 23 on the plane plate 22 are grooves and protrusions, and are respectively arranged on the two surfaces of the plane plate 22 along the gravity direction. The height of the limiters 23 is slightly greater than the height of the abutting piece 14 and the reinforcing rib 114, so as to prevent the metal blank 1 from being separated. The surface of the support plate 21 and the plane plate 22 can also be provided with anti-skid lines to increase the friction and prevent the metal blank 1 from sliding during the processing.

[0051] The implementation principle of the embodiment is that: by arranging the boss 12 and the reinforcing plate 13 on the upper surface 111 of the blank body 11 and arranging the reinforcing rib 114 on the lower surface 112, the rigidity and stability of the metal blank 1 are effectively enhanced; the support plate 21 and the plane plate 22 are arranged at the upper and lower ends of the metal blank 1, a plurality of metal blanks 1 are stacked in sequence and are isolated by the plane plate 22, the metal blank 1 is physically pressed by gravity, and the design that the boss 12, the reinforcing plate 13 and the reinforcing rib 114 extend along the length direction of the blank body 11 also makes the metal blank 1 bear force uniformly, ensures the flatness of the metal blank 1, and reduces the risk of deformation and damage of the metal blank 1 during sintering. By the consistent height of the boss 12 and the reinforcing plate 13, a uniform support surface is formed, and the stress concentration problem caused by inconsistent height is avoided.

[0052] By abutting the abutting piece 14 against the plane plate 22 and abutting the reinforcing rib 114 against the support plate 21 and the plane plate 22, the contact area is reduced, and the metal blank 1 is facilitated to be separated from the plane plate 22 and the support plate 21 after sintering.

[0053] By the design of the limiters 23 and the anti-skid lines on the support plate 21 and the plane plate 22, the friction is increased, and the fixing effect of the metal blank 1 is further ensured to prevent the metal blank 1 from moving or deviating during the processing.

[0054] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A metal blank, characterized in that, Comprise: A blank body (11) provided with an upper surface (111) and a lower surface (112) opposite to the upper surface (111); A boss (12) provided at both ends of the upper surface (111) along the width direction of the blank body (11) and extending along the length direction of the blank body (11).

2. A metal blank according to claim 1, characterized in that The boss (12) is detachably connected with the blank body (11).

3. A metal blank according to claim 2, wherein The lower surface (112) is provided with a reinforcing rib (114) extending along the length direction of the blank body (11).

4. A metal blank according to claim 3, wherein The metal blank (1) further comprises a reinforcing plate (13) provided on the upper surface (111), the reinforcing plate (13) being located between the two bosses (12) and extending along the length direction of the blank body (11).

5. A metal blank according to claim 4, wherein The reinforcing plate (13) is detachably connected with the blank body (11).

6. A metal blank according to claim 4, wherein The height of the boss (12) is consistent with the height of the reinforcing plate (13).

7. A metal blank according to claim 4, wherein The boss (12) and the reinforcing plate (13) are both provided with an abutting piece (14) at the end away from the blank body (11).

8. A metal blank according to claim 1, wherein The blank body (11) is provided with a plurality of through holes (113).

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