Device for machining cutting edge by using laser

Abstract

A device for machining a cutting edge through laser comprises a laser generating component and a laser control component, the laser control component controls the light speed of the laser emitted by the laser generating component, a plurality of two-dimensional machining areas of the laser are set, and the two-dimensional machining areas are overlapped to form the boundary of a three-dimensional machining area. Each two-dimensional processing area is defined by a processing boundary formed by a laser moving path, and during laser processing, the two-dimensional processing areas move between the starting points and the ending points, the materials in the three-dimensional processing areas are removed, the two-dimensional processing areas and the materials form an interface, and a back tool face to be processed and formed is generated on the surface of the materials. And the machining boundary of the two-dimensional machining area at the material junction is located outside the forming boundary of the rear tool face. Compared with the prior art, the device has the advantages that the problem of poor forming (blunt and non-sharp) of a blade point (such as a drill point) caused by laser characteristics is effectively solved, the centering capacity of a drill bit is improved, and the service life of a machining cutter (such as a hole machining cutter) is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to a laser processing device, in particular to a device for processing cutting edges by using laser. Background Art

[0002] As a basic hole processing tool, the drill bit has been widely used in industrial processing. The quality of the drill tip has a great influence on the centering ability of the drill bit. The sharper the drill tip, the better the centering ability. For tools made of integral diamond material, especially integral diamond drill bits with small and medium diameters, they have the advantages of higher processing efficiency, better surface quality of the processed workpiece, and significantly longer tool life compared with other technologies in the deep hole processing of ceramic materials. Therefore, their applications are becoming increasingly widespread.

[0003] However, diamond belongs to superhard materials. Processing the drill tip by grinding process is not only time-consuming, but also difficult to obtain a drill tip with a sharpness that meets the centering requirement of the drill bit. Especially for small and medium diameter drill bits, it is particularly difficult to process their rake face and flank face, and it is more likely to break and be damaged during grinding. For this reason, electrical discharge grinding and laser ablation are mainly used for the drill tip processing of diamond material drill bits. Generally speaking, the main problem of electrical discharge grinding of drill tips is the low processing efficiency caused by the low material removal rate. Laser processing is gradually being applied as an alternative to grinding processing in the manufacturing and processing of diamond tools.

[0004] The laser converts electrical energy into light energy. The light beam is reflected and refracted by optical instruments and finally converges on a focal plane with a diameter of about 0.015 mm - 0.02 mm, also known as the "light spot". The energy in the area where the light spot is located is the largest. By using the focused high-energy laser beam to irradiate the material (such as diamond), the light energy is converted into heat energy, and ablation removal of the material in the area where the light spot is located is carried out through the photo-thermal-electric effect (such as vaporization evaporation, electron avalanche, etc.) within the space range where the energy density of the light beam is higher than the material damage threshold.

[0005] In order to meet the processing requirements, a galvanometer (motor) is used to adjust the position of the optical instrument, so that the light spot moves along the set route at the specified speed, and the number of times the light spot moves along the set route is also preset. Thus, under the action of the galvanometer, the moving light spot ablates the material from point to line, achieving the removal of local material.

[0006] After the light spot acts on the object along several set routes, a two-dimensional processing area will be formed, further expanding the area of material removal. The superposition of several two-dimensional processing areas increases the volume of material removal, forming a three-dimensional processing area, and finally achieving the purpose of forming processing, such as forming the rake face and flank face to obtain the drill tip.

[0007] The cutting tools for laser processing still have the situation of edge ablation due to the heating of materials (such as diamond), resulting in the dulling of the generated drill tip, making it not sharp, leading to poor centering of the drill bit, shortening the service life of the tool, reducing the machining accuracy, causing deviations in the specifications of the processed products, and being unable to meet the requirements of machining quality (accuracy).

[0008] In summary, the reliability of the existing laser - processed diamond drill tips is insufficient and it is difficult to meet the requirements of high - precision machining. Summary of the Invention

[0009] An object of the present invention is to provide a device for laser - processing the cutting edge to form a sharper cutting edge and increase the machining accuracy of the tool for processing products.

[0010] Another object of the present invention is to provide a device for laser - processing the cutting edge, using laser as a means to process diamond to form a sharper cutting edge.

[0011] A further object of the present invention is to provide a device for laser - processing the cutting edge, so that the cutting edge near the tool axis forms a sharper drill tip.

[0012] Yet another object of the present invention is to provide a device for laser - processing the cutting edge, so that the cutting edge near the tool axis forms a sharper diamond drill tip.

[0013] Laser, generally understood, is the light emitted by atoms due to stimulation. When electrons in an atom absorb energy and jump from a low energy level to a high energy level, and then fall back from the high energy level to the low energy level, the released energy is emitted in the form of photons. The forms of laser can be divided into continuous laser and pulsed laser. According to the pulse - width characteristics of laser, it can be divided into thermal laser and cold laser.

[0014] Laser emitters such as, but not limited to, nanosecond, femtosecond or picosecond lasers can generate lasers such as infrared, infrared, blue light, green light, purple light or extreme ultraviolet light.

[0015] Ultrafast laser refers to pulsed laser with a pulse width of less than dozens of nanoseconds, that is, picosecond - level or less than picosecond - level pulsed laser. The core components involved in ultrafast lasers include oscillators, stretchers, amplifiers and compressors, etc.

[0016] The optical axis refers to the center line of the light beam (light column) or the axis of symmetry of the optical system. When the light beam rotates around this axis, there should be no change in any optical characteristics.

[0017] In machining, the so-called material or workpiece is usually the material or semi-finished product used to manufacture parts or components, which is the object of machining in the machining process. That is, after machining the workpiece, a product that meets the machining or design requirements is obtained, such as hole machining tools and milling cutters, etc. For workpieces used in tool machining, they usually include an axis, and the axial length is greater than the radial length.

[0018] The rake face (i.e., the face that contacts the item to be machined earlier during machining) and the flank face are machined on the workpiece. The intersection of the rake face and the flank face forms an intersection line, and a (cutting) edge is formed at the intersection line. The edge close to the axis forms the edge tip. The edge tip is the edge part that first contacts the item to be machined and performs cutting along the feed direction of the tool. During cutting, as the tool feeds, the cutting side of the rake face faces the item to be machined and makes contact, and the flank face is located on the back of the rake face, so it contacts the item to be machined later than the rake face or does not contact the item to be machined. In the present invention, the flank face is also referred to as the flank face to be machined and formed.

[0019] Precision machining refers to the machining technology with extremely high machining accuracy and surface quality. For example, in tool machining, the dimensions, straightness, profile, surface roughness, edge tip radius, and machining accuracy are all higher than the micron level.

[0020] Machining equipment (or machining center) is a machining equipment with multiple moving axes. That is, in the right-handed rectangular coordinate system, the X, Y, and Z axes that move in a straight line direction, and the A, B, and C axes that rotate around the X, Y, and Z axes respectively. For example, a numerically controlled machine tool usually loads various control software and receives and issues various instructions in the form of codes to perform automated machining on the workpiece.

[0021] A device for machining the cutting edge using laser includes a laser generating component and a laser control component. The laser control component controls the laser light beam emitted by the laser generating component, including:

[0022] Setting several two-dimensional machining areas for the laser, and the boundaries of these two-dimensional machining areas are superimposed to form the boundary of the three-dimensional machining area;

[0023] Each two-dimensional machining area is defined by the machining boundary formed by the laser moving path. During machining, the laser spot moves between each starting point and ending point, and removes the material (such as diamond) located within the three-dimensional machining area. At the same time, an interface is formed between the three-dimensional machining area and the material (such as diamond), that is, the flank face to be machined and formed;

[0024] For the two-dimensional machining area at the junction of the material (such as diamond), its machining boundary is located outside the forming boundary of the flank face (such as the machining boundary falls within the area where the cutting side of the rake face is located or the space around the cutting side of the rake face).

[0025] The device of the present utility model selects to use a laser to first form a rake face on a workpiece (such as diamond), and then form a flank face on the workpiece (such as diamond).

[0026] For the device of the present utility model, when using a laser, with the rake face facing away from the propagation direction of the laser beam, the laser beam propagates from the back of the rake face towards the cutting side of the rake face, that is, the starting point of the laser beam ablating the workpiece is located on the back of the rake face and finally reaches the peripheral space area where the cutting side of the rake face is located.

[0027] For the device of the present utility model, the propagation direction of the laser beam used forms a machining angle with the flank face to be machined and formed.

[0028] In order to obtain a better cutting edge (i.e., a sharp cutting edge), especially for the machining effect of the cutting edge close to the axis of the workpiece to form a cutting tip (such as the drill tip of a hole machining tool), the machining angle is the sum of a first angle and a second angle. The first angle is the angle required to adjust the laser optical axis to be parallel to the flank face to be machined and formed, and the second angle is the angle required to adjust the radial outer edge of the laser spot to contact the flank face to be machined and formed.

[0029] For the device of the present utility model, at least one two-dimensional machining area of the three-dimensional machining area boundary falls on the workpiece (such as diamond), that is, it forms an interface with the workpiece. The angle between the three-dimensional machining area boundary falling on the workpiece (such as diamond) and the axis of the workpiece depends on the type and kind of the tool.

[0030] For the device of the present utility model, the three-dimensional machining area boundary has at least two interfaces with the workpiece, that is, two two-dimensional machining areas at the junction of the workpiece (such as diamond), namely the first two-dimensional machining area and the second machining area, and two flank faces to be machined and formed are generated on the workpiece surface, namely the first flank face and the second flank face. The first two-dimensional machining area intersects with the second two-dimensional machining area. The machining boundary of the first two-dimensional machining area is located outside the forming boundary of the first flank face, and the machining boundary of the second two-dimensional machining area is located outside the forming boundary of the second flank face.

[0031] When at least two two-dimensional machining areas of the three-dimensional machining area boundary fall on the workpiece (such as diamond), for the convenience of machining, usually the laser is first adjusted to the first machining angle to form the first two-dimensional machining area, and then the laser is adjusted to the second machining angle to form the second two-dimensional machining area. Similarly, when two two-dimensional machining areas fall on the workpiece (such as diamond), after the first two-dimensional machining area and the second two-dimensional machining area are formed, the laser is then adjusted to the third machining angle to form the third two-dimensional machining area.

[0032] In order to improve the automation level of processing, the three-dimensional processing area is presented in the form of computer code, and includes an area defined by a set of starting points and ending points of several lasers. Among these starting points and ending points, at least the processing boundaries that form the two-dimensional processing area where the three-dimensional processing area falls on the diamond are located outside the forming boundary of the flank face to be machined. When the three-dimensional processing area is coded as a parallelepiped, it can be implemented with relatively simple code.

[0033] Another device for machining the cutting edge using a laser includes a laser generating component and a laser control component. The laser control component controls the laser light beam emitted by the laser generating component, including:

[0034] Using a laser, first form a rake face on the diamond, and then form a flank face on the diamond;

[0035] When machining the flank face, the rake face faces away from the propagation direction of the laser beam, and the laser beam propagates from the back of the rake face to the cutting side of the rake face; at the same time,

[0036] The propagation direction of the laser forms a machining angle with the flank face to be machined;

[0037] The machining angle is the sum of a first angle and a second angle. The first angle is the angle required to adjust the laser optical axis to be parallel to the flank face to be machined, and the second angle is the angle required to adjust the outer edge of the laser spot to contact the flank face to be machined;

[0038] The laser forms a two-dimensional processing area from the starting point along the set machining path as the end point of one machining. The processing boundary of the two-dimensional processing area should be larger than the forming boundary of the material;

[0039] Control the laser to implement from the starting point to the end point along the set machining path, that is, form a three-dimensional processing area where several two-dimensional processing areas overlap (that is, the laser reciprocates from the starting point to the end point along the set machining path);

[0040] The material (such as diamond) located within the three-dimensional processing area is removed by the laser, and the surface of the material (such as diamond) located at the boundary of the three-dimensional processing area is the flank face to be machined.

[0041] In order to implement the device of the present utility model above, especially for efficient automation implementation, a controller and an arithmetic unit are usually required to facilitate loading the code required for processing and controlling each component of the device to automatically implement according to the pre-set computer code.

[0042] If the device of the present utility model is a processing device with multiple motion axes (such as: three-axis machine tool, four-axis machine tool, five-axis machine tool, etc.), the laser can be used to realize automatic edge machining of the workpiece.

[0043] Beneficial effects achieved by the technical solution of the present utility model:

[0044] For the device of the present utility model, the laser beam is controlled to propagate from the back side of the rake face towards the cutting side of the rake face. Since the scattered part of the laser is blocked by the workpiece, the problem of poor formation (round and blunt, not sharp) of the cutting edge tip (such as drill tip) caused by the laser characteristics is effectively eliminated, the centering ability of the drill bit is improved, and the service life of machining tools (such as hole machining tools) is effectively increased.

[0045] Compared with the currently common laser processing of cutting edge tips (such as drill tips), the device of the present utility model can achieve one-time processing and forming, thereby shortening the processing time and correspondingly reducing the processing cost. The plane scanned by the laser galvanometer is larger than the outer edge of the bar stock, and the bar stock is sufficiently ablated, and the surface finish of the machined flank meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 Schematic diagram of an embodiment of a tool for machining;

[0047] Figure 2 Schematic diagram of an embodiment of machining the flank of a tool by using the device of the present utility model;

[0048] Figure 3 Schematic diagram of another angle of an embodiment of machining the flank of a tool by using the device of the present utility model;

[0049] Figure 4 Schematic diagram of an embodiment of a machining tool manufactured by using the device of the present utility model;

[0050] Figure 5 Schematic diagram of an embodiment of the incident angle required for implementing the device of the present utility model by using a laser;

[0051] Figure 6 Schematic diagram of an embodiment of a machining tool with a multi-faceted flank manufactured by using the device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] The technical solution of the present utility model will be described in detail below with reference to the accompanying drawings. The embodiments of the present utility model are only used to illustrate the technical solution of the present utility model and not to limit it. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solution of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present utility model, and all of them should be covered by the scope of the claims of the present utility model.

[0053] Figure 1 Schematic diagram of an embodiment of a tool for machining. As Figure 1As shown, the cutting tool 10 includes an elongated member having a longitudinal axis 400, a shank 300 that can be mounted on a rotating machine, and a cutting end 100 (or: drill bit) for performing machining. Along the machining feed direction, the cutting end 100 first contacts the item to be machined and performs cutting operations, such as drilling and milling, etc. A cutting member 200 is disposed after the cutting end 100. Taking a drill for drilling holes as an example, the cutting member 200 usually includes a chip flute 210, an extrusion processing part 220, etc.

[0054] The cutting end 100 includes at least one rake face and one flank face. The intersection of the rake face and the flank face forms an intersection line, and an edge is formed at the intersection line. The edge close to the axis forms a cutting edge tip. During cutting, the cutting edge tip is the first edge to contact the item to be machined and perform cutting. As the tool feeds, the cutting side of the rake face faces and contacts the item to be machined, and the flank face is on the back of the cutting side, so it contacts the item to be machined later than the cutting side or does not contact the item to be machined.

[0055] In this embodiment, laser is used as the machining means to act on the material (such as diamond) to perform removal machining to form the required shape, such as the flank face to be machined, or: the flank face. The machining area formed by the laser spot acting on the material once according to the set trajectory is a two-dimensional machining area. Each two-dimensional area can include several starting points and ending points. For example, the laser spot moves from the first starting point along a straight line to the first ending point, and then from the first ending point as the second starting point along a straight line to the second ending point. The trajectory of the first starting point and the first ending point is the first path of the laser spot, and the trajectory from the second starting point to the second ending point is the second path of the laser spot. The first path and the second path intersect. Then, taking the second ending point as the third starting point and moving along a straight line to the third ending point, the trajectory of the third starting point and the third ending point is the third path of the laser spot. The third path intersects the second path and intersects or is parallel to the first path. In this way, a large number of laser spot trajectories formed in a focal plane define the two-dimensional machining area. That is, each two-dimensional machining area is defined by the machining boundary formed by the starting points, ending points on the laser moving path, and the connecting lines between the starting points and the ending points. When the set trajectory of the laser spot is arc-shaped, circular arc or circular, it should be understood as a machining trajectory composed of many very short straight line segments with starting points and ending points.

[0056] During processing, the laser spot moves between each starting point and ending point. When the spot repeatedly acts on the material according to the set trajectory for multiple times, the material (such as diamond) located within the three-dimensional processing area is removed layer by layer, forming a three-dimensional processing area in a three-dimensional shape, such as a cuboid or a cylinder, which is a three-dimensional processing area formed by superimposing several two-dimensional processing areas. At the same time, an interface is formed between the three-dimensional processing area and the material (such as diamond), which is the flank face to be machined and formed. In the two-dimensional processing area at the junction of the material (such as diamond), its processing boundary is located outside the forming boundary of the flank face. The intersection line where the flank face intersects with the rake face is the cutting edge.

[0057] Figure 2 FIG. is a schematic diagram of an embodiment of machining the flank face of a cutting tool using the device of the present invention. Figure 3 FIG. is a schematic diagram of another angle of an embodiment of machining the flank face of a cutting tool using the device of the present invention. As Figure 2 and Figure 3 shown, the laser beam 20 propagates from the back of the rake face 600 towards the cutting side 601 of the rake face, such that the starting point of the laser beam ablating the material is located on the back of the rake face and finally reaches the peripheral space area where the cutting side 601 of the rake face is located.

[0058] The spot formed by focusing the laser beam 20 moves between each starting point and ending point. When the spot repeatedly acts on the material according to the set trajectory for multiple times, the two-dimensional processing areas are stacked layer by layer to form a three-dimensional processing area 40 (such as a parallelepiped), and the material 50 located within the three-dimensional processing area is removed layer by layer. At this time, an interface is formed between the three-dimensional processing area and the material (such as diamond), which is the flank face 500 to be machined and formed. In the two-dimensional processing area 30 at the junction of the material, its processing boundary is located outside the forming boundary 501 of the flank face.

[0059] The machining cutting tool manufactured by this device is as Figure 4 shown, which has a diamond cutting end, including a first rake face 610 and a first flank face 510. In order to form a sharper cutting edge and improve the precision of the cutting tool for machining products. During processing, a programmed control system is used to present the three-dimensional processing area in the form of computer code, which includes the area defined by the set of starting points and ending points of several lasers. Among these starting points and ending points, at least the processing boundaries of the two-dimensional processing areas that satisfy the formation of the three-dimensional processing area falling on the diamond material are located outside the forming boundary of the flank face to be machined and formed. See Figure 2 and Figure 3, the laser beam is adjusted so that it is emitted from the back of the first rake face 610 and finally reaches the peripheral space area where the cutting side of the first rake face 610 is located. When the light spot acts on the diamond repeatedly according to the set trajectory, the diamond is removed layer by layer to form a three-dimensional machining area 40. The two-dimensional machining area at the junction of the three-dimensional machining area and the diamond has its machining boundary outside the forming boundary of the flank face. The surface of the diamond at the junction with the three-dimensional machining area is the flank face 510.

[0060] The laser beam has a three-dimensional shape in space, and before its focus forms a light spot, the beam converges towards the optical axis and can be regarded as a laser beam with a conical shape. In addition, the light spot can also be regarded as a circular surface in space and has a radial measurement. Therefore, when the device in this embodiment uses a laser to act on the material for removal machining, it is also necessary to adjust the angle of the laser to facilitate enhancing the sharpness of the cutting edge, especially to form a sharper drill tip for the cutting edge near the tool axis, as Figure 5 shown, the machining angle of the laser is obtained by the sum of the first angle A1 and the second angle A2. The first angle A1 is the angle required to make the laser optical axis parallel to the flank face to be machined and formed. The second angle A2 is the angle required for the radial outer edge of the laser light spot to contact the flank face to be machined and formed, so that the focus of the laser energy contacts the material to achieve the maximum material removal efficiency. The conical laser beam 22 is emitted from the back of the rake face and finally reaches the peripheral space area where the cutting side 631 of the rake face is located. At the initial stage when the laser beam 22 contacts the material, the optical axis 21 is adjusted to be parallel to the flank face to be machined and formed. As an example, the angle A1 shown in the figure is the angle required for the optical axis to be parallel to the flank face 530 to be machined and formed, that is, the first angle. During the period when the beam 22 removes the material along the set path, the laser beam is adjusted so that at least the radial outer edge of the laser light spot 23 directly acts on the material, that is, the angle A2 shown in the figure, to achieve the maximum material removal efficiency.

[0061] The boundary of the three-dimensional machining area at least includes a two-dimensional machining area falling on the material (such as diamond), that is, it forms an interface with the material. The angle between the boundary of the three-dimensional machining area falling on the material (such as diamond) and the axis of the workpiece depends on the type and kind of the tool. For example: when the machining tool is a drill bit, the angle is the angle between the intersection line formed by the two-dimensional machining area and the material and the axis of the bar stock, and the angle is, for example, 40 degrees to 55 degrees; another example: when the machining tool is a milling cutter, the angle is the angle between the intersection line formed by the two-dimensional machining area and the material and the axis of the bar stock, and the angle is, for example, 90 degrees to 94 degrees.

[0062] The boundary of the three-dimensional machining area and the material (such as diamond) has two two-dimensional machining areas, that is, the first two-dimensional machining area and the second machining area. The first two-dimensional machining area intersects with the second two-dimensional machining area, which are respectively used as the first flank face and the second flank face.Figure 6 Figure 1 is a schematic view of an embodiment of a machining tool with a multi-faceted flank face manufactured by using the device of the present invention. As Figure 6 shown, the first flank face 521 and the second flank face 522 are realized by using the device described above in this embodiment. First, the laser is adjusted to a first machining angle to form a first two-dimensional machining area at the boundary between the first three-dimensional machining area and the material, that is, a first flank face 521 is formed on the material. Then, the laser is adjusted to a second machining angle to form a second two-dimensional machining area at the boundary between the second three-dimensional machining area and the material, that is, a second flank face 522 is formed on the material. When two two-dimensional machining areas are formed on the material (such as diamond), after the first two-dimensional machining area and the second two-dimensional machining area are formed, the laser is adjusted to a third machining angle to form a third two-dimensional machining area. According to this device, several continuous flank faces can be machined and formed on the diamond, better meeting the requirements of the machining scenario for the cutting end structure of the tool.

[0063] The diamond machined by the device of this embodiment can form a sharper edge, and can efficiently form multiple sharp edges, meeting the machining requirements of sharper edge tips. Applying the device of this embodiment to a machining equipment with multiple moving axes (such as three-axis machine tool, four-axis machine tool, and five-axis machine tool, etc.), the laser can be used to automatically machine the edge of the workpiece. For example: first, the laser is used to form a rake face on the diamond, and then a flank face is formed on the diamond.

[0064] In order to implement the device of the present invention above, especially for efficient automatic implementation, a controller and an arithmetic unit are usually required to facilitate loading the required machining code and controlling each component of the equipment to automatically implement according to the pre-set computer code. The code is written according to a parallelepiped, and the three-dimensional machining area is presented in the form of computer code, including the area defined by the set of starting points and ending points of several lasers. Among these ending points, at least the machining boundaries of the two-dimensional machining areas that satisfy the formation of the three-dimensional machining area on the diamond are located outside the forming boundary of the flank face to be machined and formed.

[0065] When machining the flank face, the rake face faces away from the propagation direction of the laser beam, and the laser beam propagates from the back of the rake face to the cutting side of the rake face. At the same time, the propagation direction of the laser forms a machining angle with the flank face to be machined and formed. The laser forms a two-dimensional machining area from the starting point along the set machining path as the ending point of one machining. The machining boundary of the two-dimensional machining area should be larger than the machining boundary of the material. Control the laser to reciprocate from the starting point to the ending point along the set machining path to form a three-dimensional machining area where several two-dimensional machining areas overlap, and the diamond located within the three-dimensional machining area is removed by the laser, and the surface of the diamond at the boundary of the three-dimensional machining area is the flank face to be machined and formed.

Claims

1. A device for machining a cutting edge using a laser, characterized in that It includes a laser generating component and a laser control component. The laser control component controls the laser light speed emitted by the laser generating component, including: Setting several two-dimensional processing areas of the laser. These two-dimensional processing areas are superimposed to form the boundary of the three-dimensional processing area; Each two-dimensional processing area is bounded by a processing boundary formed by the laser movement path. During laser processing, it moves between each starting point and ending point, removes the material located within the three-dimensional processing area, forms an interface with the material, and generates a flank face to be machined and formed on the material surface; For the two-dimensional processing area at the material junction, its processing boundary is located outside the forming boundary of the flank face.

2. The device according to claim 1, characterized in that The cutting edge is located near the workpiece axis and forms a cutting tip.

3. The device according to claim 1, characterized in that The material includes diamond.

4. The device according to claim 1, wherein Using the laser, first form a rake face on the material, and then form a flank face on the material.

5. The device according to claim 1, characterized in that Using the laser, make the rake face face away from the propagation direction of the laser beam.

6. The device according to claim 1, characterized in that The starting point where the laser beam ablates the material is located on the back of the rake face and finally reaches the peripheral space area where the cutting side of the rake face is located.

7. The device according to claim 1, characterized in that The propagation direction of the laser beam forms a machining angle with the flank face to be machined and formed; The machining angle is the sum of a first angle and a second angle. The first angle is the angle required to make the laser optical axis parallel to the flank face to be machined and formed, and the second angle is the angle required for the outer edge of the laser spot to contact the flank face to be machined and formed.

8. The device according to claim 1, characterized in that The boundary of the three-dimensional processing area has at least two interfaces with the material, and a first flank face and a second flank face are generated on the material surface.

9. The device according to claim 8, characterized in that For the first two-dimensional processing area and the second processing area at the material junction of the boundary of the three-dimensional processing area, the first two-dimensional processing area intersects with the second two-dimensional processing area. The processing boundary of the first two-dimensional processing area is located outside the forming boundary of the first flank face, and the processing boundary of the second two-dimensional processing area is located outside the forming boundary of the second flank face.

10. The device according to claim 1, characterized in that It also includes multiple motion axes.

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