Vibration processing method of sharkskin surface microstructure and jagged metal microfiber

Abstract

The application discloses a kind of sharkskin surface microstructure and zigzag metal microfiber vibration processing method, sharkskin surface microstructure and zigzag metal microfiber vibration processing method include: forming first surface microstructure on workpiece to be processed;Tool is moved to the downstream side of first surface microstructure along the direction of tool feed;Vibration trajectory and feed motion trajectory are applied to tool, and the plane where vibration trajectory is located is perpendicular to the plane to be cut of workpiece to be processed and is parallel to the direction of tool feed;Control tool cuts into workpiece to be processed in vibration trajectory, extrude first surface microstructure to form second surface microstructure, and form new first surface microstructure on downstream side.According to the vibration processing method of sharkskin surface microstructure and zigzag metal microfiber of the application, it is convenient to form the required surface microstructure on workpiece to be processed, can improve processing efficiency, and make the strength of workpiece to be processed high.

Description

Technical Field

[0001] This invention relates to the field of metal microfiber manufacturing technology, and more specifically, to a vibration processing method for a sharkskin-like surface microstructure and serrated metal microfibers. Background Technology

[0002] In related technologies, surface microstructures are processed using bottom-up manufacturing methods such as laser interferometry, template imprinting, or additive manufacturing. However, laser interferometry cannot achieve the required surface microstructure processing; template imprinting has low processing efficiency and is prone to damage during demolding; and bottom-up additive manufacturing has low processing accuracy and cannot meet the processing requirements of complex surface microstructures. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide a vibration processing method for imitating shark skin surface microstructures and serrated metal microfibers. This vibration processing method facilitates the formation of the desired surface microstructures on the workpiece, improves processing efficiency, and results in high strength of the workpiece.

[0004] The vibration processing method for the sharkskin-like surface microstructure and serrated metal microfibers according to an embodiment of the present invention includes: forming a first surface microstructure on the workpiece to be processed;

[0005] Move the tool to the downstream side of the first surface microstructure along the tool feed direction;

[0006] A vibration trajectory and a feed motion trajectory are applied to the cutting tool, and the cutting tool is used to cut the cutting plane of the workpiece. The plane containing the vibration trajectory is perpendicular to the cutting plane of the workpiece and parallel to the feed direction of the cutting tool.

[0007] The tool is controlled to cut into the workpiece in the vibration trajectory, extruding the first surface microstructure to form a second surface microstructure, and forming a new first surface microstructure on the downstream side of the tool feed direction.

[0008] According to an embodiment of the present invention, a vibration machining method for a sharkskin-like surface microstructure and serrated metal microfibers involves: forming a first surface microstructure on a workpiece; moving a cutting tool downstream of the first surface microstructure along the tool's feed direction; applying a vibration trajectory and a feed motion trajectory to the cutting tool; and cutting the workpiece's cutting plane using the cutting tool, wherein the plane containing the vibration trajectory is perpendicular to the cutting plane of the workpiece and parallel to the tool's feed direction; controlling the cutting tool to cut into the workpiece within the vibration trajectory, extruding the first surface microstructure to form a second surface microstructure, and forming a new first surface microstructure downstream of the tool's feed direction. Thus, by combining vibration machining with a specific tool motion trajectory for a combined extrusion and scraping machining process, the desired surface microstructure can be formed on the workpiece, and continuous machining can be achieved, which is beneficial for improving machining efficiency. Furthermore, the forming process, similar to an embossing process, can improve the strength of the workpiece and meet the required structural requirements.

[0009] In addition, the vibration processing method for the shark skin-like surface microstructure and serrated metal microfibers according to the above embodiments of the present invention may also have the following additional technical features:

[0010] According to some embodiments of the present invention, a vibration processing method for a sharkskin-like surface microstructure and serrated metal microfibers is used to form a first surface microstructure on a workpiece. The first surface microstructure is formed by cutting with the cutting tool; or, the first surface microstructure and the workpiece are integrally formed.

[0011] According to some embodiments of the present invention, the vibration processing method for the microstructures of shark skin-like surfaces and serrated metal microfibers further includes:

[0012] The workpiece is sequentially machined with multiple microstructures on the first surface along the cutting direction, wherein the cutting direction is perpendicular to the feed direction.

[0013] After the tool feeds along the feed motion trajectory, multiple first surface microstructures are extruded along the cutting direction to form multiple second surface microstructures, and multiple new first surface microstructures are formed on the downstream side of the multiple second surface microstructures along the tool feed direction.

[0014] According to some embodiments of the present invention, the vibration trajectory is an elliptical trajectory.

[0015] According to some embodiments of the present invention, the length of a single feed motion trajectory is greater than twice the machining depth of the tool, and the second surface microstructure is formed in an inclined shape.

[0016] According to some embodiments of the present invention, the length of each of the feed motion trajectories is less than the length of the second surface microstructure.

[0017] According to some embodiments of the present invention, the length of a single feed motion trajectory is less than twice the machining depth of the tool.

[0018] According to some embodiments of the present invention, when the first surface microstructure is extruded to form the second surface microstructure, the cutting tool leaves the workpiece and brings out the serrated metal microfibers of the secondary structure.

[0019] According to some embodiments of the present invention, by adjusting the vibration trajectory, the tool parameters and machining parameters of the cutting tool, the second surface microstructure with different feature sizes can be obtained.

[0020] According to some embodiments of the present invention, the tool parameters of the cutting tool include at least one of the tool tip angle, tool clearance angle and tool profile shape; and / or, the machining parameters include at least one of the vibration trajectory shape, feed rate, depth of cut and feed distance.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of a vibration processing method according to the first embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the vibration processing method according to the first embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of a single second surface microstructure according to the first embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of a vibration processing method according to a second embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the serrated metal microfiber according to the second embodiment of the present invention;

[0028] Figure 6 This is a technical roadmap of the vibration processing method according to an embodiment of the present invention.

[0029] Figure label:

[0030] 100. Parts to be processed;

[0031] 11. Microstructure of the first surface; 12. Microstructure of the second surface;

[0032] 20. Knives;

[0033] 31. Vibration trajectory; 32. Feed motion trajectory; 33. Cutting direction;

[0034] 40. Serrated metal microfibers. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In the description of this invention, "first feature" and "second feature" may include one or more of the features, "multiple" means two or more, "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them, and "above," "over," and "on top" the second feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0038] The vibration processing method of the sharkskin-like surface microstructure and the serrated metal microfiber 40 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0039] Reference Figures 1-3 As shown, the vibration processing method for the sharkskin-like surface microstructure and serrated metal microfibers 40 according to an embodiment of the present invention may include:

[0040] A first surface microstructure 11 is formed on the workpiece 100;

[0041] The tool 20 is moved to the downstream side of the first surface microstructure 11 along the feed direction of the tool 20, thereby moving the tool 20 to facilitate the subsequent processing requirements of the workpiece 100.

[0042] A vibration trajectory 31 and a feed motion trajectory 32 are applied to the tool 20, and the tool 20 is used to cut the cutting plane of the workpiece 100. The plane containing the vibration trajectory 31 is perpendicular to the cutting plane of the workpiece 100, and the plane containing the vibration trajectory 31 is parallel to the feed direction of the tool 20. This can meet the movement requirements of the tool 20, ensure the reliability of subsequent processing of the workpiece 100, and meet the processing requirements of the surface microstructure of the workpiece 100.

[0043] The control tool 20 cuts into the workpiece 100 in the vibration trajectory 31, extruding the first surface microstructure 11 to form the second surface microstructure 12. In other words, the back face of the tool 20 extrudes and forms the first surface microstructure 11 and the material of the workpiece 100 at the bottom, thereby forming the desired surface microstructure on the workpiece 100, such as a sharkskin-like surface microstructure or a fish scale-like surface microstructure. A new first surface microstructure 11 is formed on the downstream side of the feed direction of the tool 20. In other words, when the first surface microstructure 11 is extruded to form the second surface microstructure 12, the front face of the tool 20 can scoop up the material of the workpiece 100 to form an accumulation, which facilitates the subsequent extrusion of the first surface microstructure 11 to form the second surface microstructure 12. This enables the continuity of processing and helps to improve processing efficiency.

[0044] Therefore, by using the above-mentioned vibration processing and the specific movement trajectory of the tool 20 to perform extrusion and spade composite processing, the problems of processing accuracy, process freedom and processing efficiency in related technologies can be solved. Moreover, by forming the part 100 in a similar manner to stamping during the processing, the strength of the workpiece 100 can be improved, and the required structural requirements can be met.

[0045] In some embodiments, the workpiece 100 to be processed can be a metal part or a non-metal part, which can meet the processing requirements of different materials. For example, the workpiece 100 to be processed can be an aluminum part or a copper part, etc.

[0046] According to an embodiment of the present invention, a vibration processing method for a sharkskin-like surface microstructure and serrated metal microfibers 40 is described, which involves forming a first surface microstructure 11 on a workpiece 100; moving a tool 20 to the downstream side of the first surface microstructure 11 along the feed direction of the tool 20; applying a vibration trajectory 31 and a feed motion trajectory 32 to the tool 20; cutting the workpiece 100 on the cutting plane using the tool 20, wherein the plane containing the vibration trajectory 31 is perpendicular to the cutting plane of the workpiece 100 and parallel to the feed direction of the tool 20; controlling the tool 20 to cut into the workpiece 100 in the vibration trajectory 31; extruding the first surface microstructure 11 to form a second surface microstructure 12; and forming a new first surface microstructure 11 on the downstream side of the feed direction of the tool 20. Therefore, by using vibration processing and a specific tool 20 motion trajectory for extrusion and spadeing composite processing, the required surface microstructure can be formed on the workpiece 100, and the processing continuity can be achieved, which is beneficial to improving processing efficiency. At the same time, the strength of the workpiece 100 can be improved by forming it in a similar way to stamping during the processing, thus meeting the required structural requirements.

[0047] In some embodiments of the present invention, when forming the first surface microstructure 11 on the workpiece 100, the first surface microstructure 11 is formed by cutting with a tool 20. In other words, the material of the workpiece 100 is scooped up and piled up by the rake face of the tool 20 to form the first surface microstructure 11, thereby fulfilling the processing requirement of forming the first surface microstructure 11 on the workpiece 100, which facilitates the subsequent processing of the second surface microstructure 12.

[0048] Alternatively, the first surface microstructure 11 and the workpiece 100 can be integrally formed, which can meet the requirement of forming the first surface microstructure 11 on the workpiece 100, facilitate the subsequent processing of the second surface microstructure 12, and improve processing efficiency.

[0049] According to some embodiments of the present invention, such as Figure 1 , Figure 2 and Figure 4 As shown, the vibration processing method also includes:

[0050] The workpiece 100 is processed sequentially along the cutting direction 33 to process multiple (two or more) first surface microstructures 11. The cutting direction 33 is perpendicular to the feed direction to ensure that the first surface microstructures 11 are evenly distributed and to facilitate the processing of the first surface microstructures 11, thereby facilitating the subsequent processing of the second surface microstructures 12 and improving processing efficiency.

[0051] After the tool 20 feeds along the feed motion trajectory 32, multiple first surface microstructures 11 are extruded along the cutting direction 33 to form multiple second surface microstructures 12. Multiple second surface microstructures 12 can be processed, ensuring the uniformity of the distribution of the second surface microstructures 12 and meeting the processing requirements of the required surface microstructures. Furthermore, multiple new first surface microstructures 11 are formed on the downstream side of the multiple second surface microstructures 12 along the feed direction of the tool 20, which can process multiple new first surface microstructures 11 and is beneficial to improving processing efficiency.

[0052] In some embodiments, the spacing between two adjacent columns of second surface microstructures 12 is determined by the feed distance of the tool 20, which facilitates the control of the spacing between different columns of second surface microstructures 12, meets different control requirements, and makes control convenient.

[0053] In some embodiments of the present invention, such as Figure 2 As shown, the vibration trajectory 31 is an elliptical trajectory, which can realize the extrusion-shovel composite processing technology. It is convenient to extrude the first surface microstructure 11 to form the second surface microstructure 12, while forming a new first surface microstructure 11 on the downstream side of the tool 20 feed direction, which makes the control convenient and meets the required processing requirements.

[0054] In embodiments of the present invention, the specific length of the feed motion trajectory 32 can be set according to actual conditions.

[0055] For example, in some embodiments, such as Figures 1-3 As shown, the length of a single feed trajectory 32 is greater than twice the machining depth of the tool 20. This larger feed trajectory 32 prevents interference between different columns of the second surface microstructures 12 during machining, ensuring reliable machining. Furthermore, the second surface microstructures 12 are formed in an inclined shape to meet the machining requirements of the desired surface microstructures.

[0056] In some embodiments, the tilt angle of the second surface microstructure 12 is consistent with the back angle of the tool 20, which facilitates the direct processing and manufacturing of the second surface microstructure 12 by the tool 20 in one step, thereby improving processing efficiency.

[0057] In some embodiments where the vibration trajectory 31 is an elliptical trajectory, the rake face of the tool 20 is formed into a triangle. When the tool 20 vibrates along an elliptical trajectory, the two sides of the triangle can be used to process two adjacent first surface microstructures 11, thereby forming the opposite sides of two adjacent second surface microstructures 12. Furthermore, by moving the tool 20 along the cutting direction 33, one side of the next second surface microstructure 12 and the other side of one of the two adjacent second surface microstructures 12 can be processed to meet the required processing needs.

[0058] According to some embodiments of the present invention, the length of each feed trajectory 32 is less than the length of the second surface microstructure 12, so that adjacent columns of second surface microstructures 12 can overlap each other, satisfying the structural requirements of the desired surface microstructure, i.e., forming a sharkskin-like surface microstructure. Simultaneously, during the processing of the second surface microstructure 12, the upper surface of the second surface microstructure 12 is subjected to the vibration of the tool 20, producing a wavy effect, which can form a surface more closely resembling real sharkskin, satisfying the required processing requirements.

[0059] Shark skin structure is a unique periodic micro-nano composite structure that achieves excellent underwater drag reduction performance through the overlapping of scale-like microstructures. Therefore, by artificially fabricating shark skin-like surface microstructures, similar friction reduction, drag reduction, and directional wetting capabilities can be obtained, fulfilling application requirements in shipbuilding, aerospace, and other fields.

[0060] Because sharkskin structures are micro-nano composite multi-scale structures, they pose significant challenges to manufacturing technology. A key characteristic of sharkskin structures lies in the overlapping of microstructures, making it difficult to achieve similar contour morphologies using top-down processing methods.

[0061] For example, laser interference can be used to fabricate micro-nano composite structures with wavy, scale-like surfaces, but it cannot achieve the effect of microstructures obscuring each other when arranged at an angle. Template imprinting can be used to prepare curved micro-protrusion structures to achieve a high degree of similarity in contour, but the processing efficiency is low and the surface microstructure is easily damaged during demolding. The bottom-up manufacturing method of additive manufacturing is more advantageous for preparing microstructures that mimic sharkskin surfaces, but it has the disadvantage of low processing accuracy and is not suitable for processing microstructures with complex morphologies that mimic sharkskin surfaces.

[0062] Therefore, the embodiments of the present invention utilize a combined extrusion and spadeing processing technology based on vibration processing and a specific tool 20 motion trajectory to meet the processing requirements of the microstructure on the surface of the simulated shark skin, and solve the problems of processing accuracy, process freedom and processing efficiency existing in related technologies.

[0063] In some embodiments, the machining depth of the tool 20 corresponds to the length of the second surface microstructure 12, which facilitates the limitation of the length of the second surface microstructure 12, making machining and control more convenient.

[0064] For example, in some embodiments, such as Figure 4 As shown, the length of a single feed motion trajectory 32 is less than twice the machining depth of the tool 20. The smaller length of the feed motion trajectory 32 ensures that the tool 20 generates a sufficiently large extrusion force on the workpiece 100 to meet the machining requirements of different second surface microstructures 12.

[0065] In some embodiments of the present invention, such as Figure 4 and Figure 5 As shown, when the first surface microstructure 11 is extruded to form the second surface microstructure 12, the tool 20 leaves the workpiece 100 and brings out the serrated metal microfibers 40 of the secondary structure, so that the tool 20 can generate a sufficiently large extrusion force on the workpiece 100 and obtain chips, which are the serrated metal microfibers 40. Since the two sides of the serrated metal microfibers 40 are vibrated by the front and back faces of the tool 20 respectively, they can form periodic serrated metal microfibers 40. The serrated metal microfibers 40 can be applied to sinter on the metal surface to achieve a heat transfer enhancement effect, and the second surface microstructure 12 can be formed into a fish scale-like surface microstructure, which can meet the processing requirements of different surface microstructures.

[0066] According to some embodiments of the present invention, the vibration frequency of the tool 20 is greater than or equal to 20 kHz, which ensures that the machining requirements of the surface microstructure are met, resulting in good machining effect. Furthermore, since the ratio of the cutting speed of the tool 20 to the vibration frequency is 12 cycles of the second surface microstructure, increasing the vibration frequency can increase the cutting speed of the tool 20, thereby improving machining efficiency and ensuring strong process controllability. For example, in some specific embodiments, the vibration frequency of the tool 20 can be 20 kHz, 25 kHz, 30 kHz, 35 kHz, 40 kHz, 45 kHz, etc.

[0067] In some embodiments of the present invention, by adjusting the vibration trajectory 31, the tool parameters and processing parameters of the tool 20, second surface microstructures 12 with different feature sizes can be obtained, which can meet the processing requirements of second surface microstructures 12 with different structures, and the process is highly controllable, which can meet various complex and specific processing requirements.

[0068] In some embodiments, the tool parameters of the tool 20 include at least one of the tool tip angle, tool clearance angle, and tool profile shape. By adjusting at least one of the tool tip angle, tool clearance angle, and tool profile shape, the machining requirements of different second surface microstructures 12 can be achieved, satisfying the machining requirements of different second surface microstructures 12. For example, the rake angle and clearance angle of the tool 20 can be set to meet the required machining requirements for the second surface microstructure 12 to be machined.

[0069] In some embodiments, the processing parameters include at least one of vibration trajectory shape, feed rate, depth of cut, and feed distance. By adjusting at least one of the vibration trajectory shape, feed rate, depth of cut, and feed distance, the processing requirements of different second surface microstructures 12 can be achieved, satisfying the processing needs of various second surface microstructures 12, such as obtaining a variety of sharkskin-like surface microstructures. For example, the vibration trajectory shape can be set according to the width and height of the second surface microstructure 12 to be processed, thus meeting the required processing requirements.

[0070] In some embodiments where the cutting tool 20 leaves the workpiece 100 and brings out the serrated metal microfibers 40 of the secondary structure, different serrated metal microfibers 40 can be prepared by adjusting the feed distance. For example, by reducing the feed distance, the extrusion of the workpiece 100 by the cutting tool 20 can be greatly enhanced, thereby removing the material of the workpiece 100 and forming uniform serrated metal microfibers 40. Since the serrated metal microfibers 40 are subjected to the action of the rake face and the flank face of the cutting tool 20 respectively during the formation process, periodic serrated structures are generated on both sides of the serrated metal microfibers 40. Furthermore, by controlling the processing parameters, multi-scale serrated metal microfibers 40 can be prepared, while achieving extremely high processing efficiency and morphological controllability.

[0071] In some embodiments, the cutting tool 20 can be a diamond part, which has good wear resistance and cutting performance, ensuring reliable machining of the workpiece 100 and resulting in good machining accuracy. For example, the cutting tool 20 can be a single-crystal diamond cutting tool 20.

[0072] In some embodiments, the cutting tool 20 is fixed to a vibration device, and the vibration device drives the cutting tool 20 to vibrate to achieve the required vibration.

[0073] like Figure 6 As shown, the vibration processing method includes:

[0074] Obtain the current surface microstructure requirements of the workpiece 100, such as determining the contour information of the sharkskin-like surface microstructure, such as the tilt angle, height, and width, or determining the contour information of the serrated metal microfiber 40, such as the width, height, and serration period.

[0075] Determine the operating parameters of the vibration device, the shape of the tool 20, the vibration trajectory 31, and the machining parameters and / or vibration parameters based on the current surface microstructure requirements;

[0076] Based on the working parameters of the vibration device, the shape of the tool 20, the processing parameters, the vibration trajectory 31 and the vibration parameters, the vibration trajectory 31 and the feed motion trajectory 32 are applied to the tool 20 to process the surface microstructure of the workpiece 100, so as to achieve the required processing requirements, ensure the reliability of the processed surface microstructure shape, and meet the processing requirements of different structures.

[0077] In some embodiments, such as Figure 6 As shown, the vibration processing method also includes:

[0078] To identify whether the surface microstructure of the workpiece 100 meets the current surface microstructure requirements, in other words, to determine whether the surface microstructure of the workpiece 100 meets the requirements based on the ideal microstructure morphology, for example, by obtaining the contour information of the surface microstructure through instruments such as scanning electron microscope and white light interferometer, and then performing performance tests such as drag reduction and heat transfer to ensure that the obtained surface microstructure meets the requirements.

[0079] If the current surface microstructure requirements are not met, the processing parameters and / or vibration parameters are adjusted to obtain new processing parameters and / or new vibration parameters.

[0080] The surface microstructure of the workpiece 100 is reprocessed based on new processing parameters and / or new vibration parameters. Thus, by detecting the surface microstructure of the workpiece 100, processing parameters and / or vibration parameters that meet the requirements can be obtained, allowing for the setting of these parameters and / or vibration parameters, facilitating subsequent processing and improving processing efficiency.

[0081] In some embodiments, such as Figure 6 As shown, before machining the surface microstructure of the workpiece 100, the vibration machining method further includes applying vibration trajectory 31 and feed motion trajectory 32 to the tool 20 based on the working parameters of the vibration device, the shape of the tool 20, the machining parameters, the vibration trajectory 31, and the vibration parameters, in order to process the surface microstructure of the workpiece 100:

[0082] Determine the operating parameters of the vibration device to meet the requirements for setting the operating parameters of the vibration device;

[0083] The shape and deviation of the vibration trajectory 31 are tested to meet the requirements for setting the shape and deviation of the vibration trajectory 31.

[0084] The shape of the tool 20 is determined to meet the requirements for setting the shape of the tool 20;

[0085] Determine whether the vibration trajectory 31 and the shape of the tool 20 meet the requirements;

[0086] If the requirements are met, the surface microstructure of the workpiece 100 is processed. Therefore, by detecting the vibration trajectory 31 and the shape of the tool 20, it is possible to ensure that the surface microstructure of the workpiece 100 meets the current surface microstructure requirements. This ensures that the surface microstructure of the processed workpiece 100 meets the required requirements, facilitates control, and helps improve processing accuracy.

[0087] Other configurations and operations of the vibration processing method according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0088] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0089] In the description of this specification, the references to terms such as "embodiment," "specific embodiment," and "example" 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 present invention. In this specification, the 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.

[0090] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vibration processing method for imitating shark skin surface microstructures and serrated metal microfibers, characterized in that, include: A first surface microstructure is formed on the workpiece; Move the tool to the downstream side of the first surface microstructure along the tool feed direction; A vibration trajectory and a feed motion trajectory are applied to the cutting tool, and the cutting tool is used to cut the cutting plane of the workpiece. The plane containing the vibration trajectory is perpendicular to the cutting plane of the workpiece and parallel to the feed direction of the cutting tool. The cutting tool is controlled to cut into the workpiece within the vibration trajectory, compressing the first surface microstructure to form a second surface microstructure, and forming a new first surface microstructure downstream of the cutting tool feed direction. The vibration processing method further includes: The workpiece is sequentially machined with multiple microstructures on the first surface along the cutting direction, wherein the cutting direction is perpendicular to the feed direction. After the tool is fed along the feed trajectory, multiple first surface microstructures are extruded along the cutting direction to form multiple second surface microstructures, and multiple new first surface microstructures are formed downstream of the multiple second surface microstructures along the tool feed direction. When the first surface microstructure is extruded to form the second surface microstructure, the cutting tool leaves the workpiece and brings out the serrated metal microfibers of the secondary structure.

2. The vibration processing method for the microstructure of the sharkskin-like surface and the serrated metal microfibers according to claim 1, characterized in that, When forming a first surface microstructure on a workpiece, the first surface microstructure is formed by cutting with the cutting tool; Alternatively, the first surface microstructure and the workpiece to be processed are integrally formed.

3. The vibration processing method for the sharkskin-like surface microstructure and serrated metal microfibers according to claim 1, characterized in that, The vibration trajectory is an elliptical trajectory.

4. The vibration processing method for the sharkskin-like surface microstructure and serrated metal microfibers according to claim 1, characterized in that, The length of a single feed motion trajectory is greater than twice the machining depth of the tool, and the second surface microstructure is formed in an inclined shape.

5. The vibration processing method for the simulated shark skin surface microstructure and serrated metal microfibers according to claim 4, characterized in that, The length of each of the feed motion trajectories is less than the length of the second surface microstructure.

6. The vibration processing method for the sharkskin-like surface microstructure and serrated metal microfibers according to claim 1, characterized in that, The length of a single feed motion trajectory is less than twice the machining depth of the tool.

7. The vibration processing method for the sharkskin-like surface microstructure and serrated metal microfibers according to claim 1, characterized in that, By adjusting the vibration trajectory, the tool parameters, and the machining parameters, the second surface microstructures with different feature sizes can be obtained.

8. The vibration processing method for the sharkskin-like surface microstructure and serrated metal microfibers according to claim 7, characterized in that, The tool parameters of the tool include at least one of the following: tool tip angle, tool clearance angle, and tool profile shape; And / or, the machining parameters include at least one of vibration trajectory shape, feed rate, depth of cut, and feed distance.

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