Composite tool, machining apparatus, and shell machining method

Abstract

The application discloses a composite cutter, a machining device and a shell machining method, and relates to the product machining technical field, wherein the composite cutter is applied to the machining device, the composite cutter comprises a guiding section, a rough machining section, a fine machining section, a chamfering section and a fixing section which are sequentially arranged along the axial direction of the composite cutter, the guiding section is arranged in a taper shape away from the rough machining section, the diameter of the rough machining section is smaller than the diameter of the fine machining section, and the fixing section is used for being fixed to the spindle interface of the machining device. The application aims to provide a multifunctional integrated composite cutter and a corresponding use method thereof.

Description

Technical Field

[0001] This invention relates to the field of product processing technology, and in particular to a composite cutting tool, processing equipment, and shell processing method. Background Technology

[0002] In the field of product processing, especially for watch cases, locating holes are a crucial manufacturing process. They serve as a reference point to ensure the positional accuracy of the structure in subsequent machining processes, guaranteeing consistency in repeated assembly. These locating holes position the product and restrict the freedom of movement of the parts. In actual machining, multiple processes are required, necessitating multiple different cutting tools. Each tool change involves switching tools and repositioning, increasing machining time and resulting in low workpiece processing efficiency. Summary of the Invention

[0003] The main objective of this invention is to propose a composite cutting tool, processing equipment, and shell processing method, aiming to provide a multifunctional integrated composite cutting tool and its corresponding usage method.

[0004] To achieve the above objectives, the present invention proposes a composite tool for use in machining equipment. The composite tool includes a guide section, a roughing section, a finishing section, a chamfering section, and a fixing section arranged sequentially along its axial direction. The guide section is gradually tapered away from the roughing section. The diameter of the roughing section is smaller than the diameter of the finishing section. The fixing section is used to fix the tool to the spindle interface of the machining equipment.

[0005] In one embodiment, the roughing section includes a drill bit and / or the finishing section includes a reamer.

[0006] The present invention also proposes a processing apparatus, wherein the processing apparatus comprises: The main body includes a worktable and a spindle interface corresponding to the worktable; the worktable is equipped with a positioning structure and a clamping structure; and... At least one cutting tool is detachably mounted on the spindle interface, and the at least one cutting tool includes at least one composite cutting tool. The composite cutting tool includes a guide section, a roughing section, a finishing section, a chamfering section, and a fixing section arranged sequentially along its axial direction. The guide section is gradually tapered away from the roughing section. The diameter of the roughing section is smaller than the diameter of the finishing section. The fixing section is used to fix the cutting tool to the spindle interface of the machining equipment.

[0007] The present invention also proposes a shell processing method, employing the processing equipment described above, wherein the shell processing method includes the following steps: The plate to be processed is positioned and fixed on the worktable by the positioning structure and the clamping structure; The composite tool is used to machine positioning holes on the plate to be processed; Switch the cutting tool to mill a reference plane on the plate to be processed; The material to be processed is removed from the worktable, and the material to be processed is positioned and fixed in the processing fixture using the positioning holes and the reference plane.

[0008] In one embodiment, the processing equipment has two composite cutting tools, and the finishing sections of the two composite cutting tools are sized differently. The step of machining positioning holes on the workpiece using the composite cutting tools includes: A first positioning hole is machined on the plate to be processed using one of the aforementioned composite cutting tools; Switch to another composite tool to machine a second positioning hole on the plate to be processed.

[0009] In one embodiment, the step of machining positioning holes on the workpiece using the composite tool includes: The positioning holes are machined according to preset point parameters; or... Identify the feature marks on the material to be processed, and process the positioning holes at the feature marks.

[0010] In one embodiment, the step of machining positioning holes on the workpiece using the composite tool includes: The composite tool is used to machine positioning holes in the process section of the plate to be processed; After the step of removing the workpiece from the worktable and positioning and fixing the workpiece in the processing fixture using the positioning holes and the reference plane, the method further includes the step of: Remove the process segment from the material to be processed.

[0011] In one embodiment, the step of switching the cutting tool to mill a reference plane on the workpiece includes: Switch the cutting tool to mill a reference plane on the process section of the material to be processed.

[0012] In one embodiment, the step of machining positioning holes on the workpiece using the composite tool includes: The composite tool is fed axially by the processing equipment according to multiple processing parameters in order to process positioning holes on the plate to be processed.

[0013] In one embodiment, the machining parameters include rotational speed, feed rate, and depth of cut, and the plurality of machining parameters include roughing parameters and finishing parameters; The roughing parameters are set as follows: rotational speed S9000-S13000, feed rate F1000-F1800, and depth of cut 0.05mm-0.16mm. The roughing parameters are used for the processing of the material to be processed by the guide section and the roughing section. The finishing parameters are set to a rotational speed of S9000-S13000, a feed rate of F500-F800, and a depth of cut of 0.05mm-0.1mm. These finishing parameters are used for the finishing section and the chamfering section to process the sheet metal to be processed.

[0014] In the technical solution of this invention, the guide section, facing away from the roughing section, has a tapered structure that guides the tool accurately into the pre-drilled hole or positioning surface on the workpiece during the initial machining stage, thereby reducing tool setting errors. The diameter of the roughing section is smaller than that of the finishing section, allowing the tool to remove most of the cutting allowance during rotary feed by the thinner roughing section, followed by high-precision finishing and shaping of the machined surface by the larger diameter finishing section, thus balancing machining efficiency and surface quality. The chamfering section, located between the finishing section and the fixing section, is used to form a chamfer at the hole opening or contour edge, eliminating the need for subsequent tool changing. The fixing section is used to quickly and reliably install the entire composite tool onto the spindle interface of the machining equipment, achieving torque transmission and axial positioning. Through the orderly combination of the above sections, the composite tool can sequentially complete multiple processes such as guiding, roughing, finishing, and chamfering in one clamping and one feed, significantly improving machining efficiency and coaxiality accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A simplified planar structural diagram of an embodiment of the composite cutting tool provided by the present invention; Figure 2 for Figure 1 A partial schematic diagram of a composite cutting tool; Figure 3 A schematic flowchart of the first embodiment of the shell processing method provided by the present invention; Figure 4 A schematic flowchart of the steps of the second embodiment of the shell processing method provided by the present invention; Figure 5A schematic flowchart of the steps of the third embodiment of the shell processing method provided by the present invention; Figure 6 A schematic flowchart of the steps of the fourth embodiment of the shell processing method provided by the present invention; Figure 7 A schematic flowchart of the fifth embodiment of the shell processing method provided by the present invention; Figure 8 This is a flowchart illustrating the steps of the sixth embodiment of the shell processing method provided by the present invention.

[0017] Explanation of icon numbers: 100. Composite tool; 1. Guide section; 2. Roughing section; 3. Finishing section; 4. Chamfering section; 5. Fixing section.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] In the field of product processing, especially for watch cases, locating holes are a crucial manufacturing process. They serve as a reference point to ensure the positional accuracy of the structure in subsequent machining processes, guaranteeing consistency in repeated assembly. These locating holes position the product and restrict the freedom of movement of the parts. In actual machining, multiple processes are required, necessitating multiple different cutting tools. Each tool change involves switching tools and repositioning, increasing machining time and resulting in low workpiece processing efficiency.

[0023] In view of this, the present invention proposes a composite cutting tool, please refer to [link / reference]. Figures 1 to 2 The following is a detailed description of the composite tool proposed in this application, with reference to the specific accompanying drawings.

[0024] Please see Figures 1 to 2 The composite tool 100 is applied to a processing equipment. The composite tool 100 includes a guide section 1, a roughing section 2, a finishing section 3, a chamfering section 4, and a fixing section 5 arranged sequentially along its axial direction. The guide section 1 is gradually tapered away from the roughing section 2. The diameter of the roughing section 2 is smaller than the diameter of the finishing section 3. The fixing section 5 is used to fix the tool to the spindle interface of the processing equipment.

[0025] In the technical solution of this invention, the guide section 1, which is conical in shape and faces away from the roughing section 2, can guide the tool to accurately enter the pre-drilled hole or positioning surface on the workpiece in the early stage of machining, thereby reducing tool setting errors. The diameter of the roughing section 2 is smaller than that of the finishing section 3, so that when the tool rotates and feeds, most of the cutting allowance is removed by the thinner roughing section 2 first, and then the larger diameter finishing section 3 performs high-precision finishing and shaping on the machined surface, thus balancing machining efficiency and surface quality. The chamfering section 4 is located between the finishing section 3 and the fixing section 5, and is used to form a chamfer at the hole opening or contour edge, eliminating the need for subsequent tool changing. The fixing section 5 is used to quickly and reliably install the entire composite tool 100 onto the spindle interface of the machining equipment, realizing torque transmission and axial positioning. Through the orderly combination of the above sections, the composite tool 100 can complete multiple processes such as guiding, roughing, finishing and chamfering in one clamping and one feed, significantly improving machining efficiency and coaxiality accuracy.

[0026] Specifically, the roughing section 2 includes a drill bit and / or the finishing section 3 includes a reamer. The roughing section 2 can use a drill bit to perform drilling or reaming, and the finishing section 3 can use a reamer to perform high-precision reaming. Thus, in this application, both a drill bit and a reamer are used simultaneously, so that during the rotary feed process, the composite tool 100 first removes most of the excess material (roughing) with the drill bit, and then the reamer completes the finishing and dimensional correction of the hole wall. It should be noted that this application only uses a drill bit and a reamer as an example for corresponding drilling or drilling-reaming composite machining. In other embodiments, the roughing section 2 is not limited to a drill bit, and can also use a stepped milling cutter, a rough boring bar, or a twist drill, etc. The finishing section 3 is not limited to a reamer, and can also use a fine boring bar, a broach, or a tapered extrusion cutter, etc., as long as the diameter of the roughing section 2 is smaller than the diameter of the finishing section 3, and the roughing section 2 and the finishing section 3 are arranged in segments sequentially. The drill and reamer combination provided in this application embodiment is a typical configuration for realizing one-time forming of hole features, which can effectively reduce the number of tool changes and ensure coaxiality.

[0027] This application also proposes a processing device, wherein the processing device includes a main body and at least one cutting tool. The main body is provided with a worktable and a spindle interface corresponding to the worktable. The worktable is provided with a positioning structure and a clamping structure. The cutting tool is detachably disposed on the spindle interface, and the at least one cutting tool includes at least one composite cutting tool 100. Specifically, the specific structure of the composite cutting tool 100 refers to the above embodiments. Since the processing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0028] It should be emphasized that the total number of tools can be one or more. When only one tool is configured, it is the composite tool 100. When multiple tools are configured, at least one of them is the composite tool 100, and the remaining tools can be other conventional tools (such as ordinary drills, end mills, taps, etc.). By integrating positioning and clamping functions on the worktable and selectively assembling at least one composite tool 100 on the spindle interface, the machining equipment can complete hole machining or contour machining in a single clamping and multi-process compound manner, significantly reducing the number of tool changes and auxiliary time. At the same time, it allows for flexible combination with other conventional tools according to machining needs, expanding the process range of the equipment.

[0029] Please see Figures 3 to 8 This application also proposes a shell processing method using the processing equipment described above, wherein the shell processing method includes the following steps: S100: The plate to be processed is positioned and fixed on the worktable by the positioning structure and the clamping structure; S200: The composite tool 100 is used to machine positioning holes on the plate to be processed; S300: Switch the cutting tool to mill a reference plane on the plate to be processed; S400: Remove the workpiece to be processed from the worktable and use the positioning holes and the reference plane to position and fix the workpiece to be processed in the processing fixture.

[0030] The shell processing method employs the processing equipment including the composite tool 100. First, the bottom surface of the plate to be processed is used as the initial reference surface. The plate to be processed is fixed to the worktable by the positioning structure and the clamping structure. Then, the positioning hole is machined on the plate to be processed using the composite tool 100. Here, the positioning hole is completed by guiding, roughing and finishing, and chamfering in one feed using the composite tool 100. Then, other tools are switched to mill the top reference plane on the plate to be processed. The reference plane has a strict parallel relationship with the bottom surface. Finally, the plate to be processed is removed from the worktable and positioned and fixed in a special processing fixture using the machined positioning hole and the top reference plane. At this time, the top reference plane becomes the new main positioning surface, thereby exposing the bottom surface of the plate to be processed, which facilitates further processing of the bottom surface. This realizes a complete material preparation process based on the pre-processing features of the composite tool 100 and by changing the clamping reference to complete the bottom surface processing.

[0031] Specifically, the processing equipment has two composite cutting tools 100, and the finishing sections 3 of the two composite cutting tools 100 are configured with different dimensions. Step S200 includes: S210: A first positioning hole is machined on the plate to be processed using a composite tool 100; S220: Switch to another composite tool 100 to machine a second positioning hole on the plate to be processed.

[0032] The processing equipment is equipped with two composite cutting tools 100, and the finishing section 3 of the two composite cutting tools 100 has different dimensions. Based on this configuration, the step of machining the positioning hole on the workpiece is specifically divided into two steps: First, one of the composite cutting tools 100 is used to machine the first positioning hole on the workpiece; then, the other composite cutting tool 100 is switched to machine the second positioning hole on the workpiece. Since the finishing section 3 of the two composite cutting tools 100 has different dimensions, the final diameters of the first positioning hole and the second positioning hole are also different. This design allows two high-precision positioning holes of different sizes to be efficiently obtained on the same workpiece, thereby meeting different needs in subsequent tooling positioning, such as one larger diameter hole as the main positioning pin hole, and another smaller diameter hole as the anti-rotation positioning hole, or adapting to the positioning structure of the tooling with positioning pins of different diameters. Both holes are guided, roughed, finished and chamfered in one feed by the composite cutting tool 100, ensuring the hole diameter accuracy and position accuracy, while reducing the number of tool changes and processing cycle.

[0033] Furthermore, step S200 includes: S230: Process the positioning holes according to the preset point parameters; or... S240: Identify the feature marks on the material to be processed, and process the positioning holes at the feature marks.

[0034] This application provides two methods for determining the position when machining the positioning hole using the composite tool 100. One method is to machine according to preset position parameters, i.e., pre-setting absolute coordinate values ​​corresponding to the positioning structure on the worktable. After the workpiece is fixed in a known position by the positioning structure, the control system directly calls these coordinates to drive the composite tool 100 to drill, suitable for batch and efficient machining of regular workpieces. The other method is to identify feature marks on the workpiece and then machine at their positions. These feature marks may include stamped indentations, printed crosshairs, pre-made process holes, edge corner points, or QR codes. The identification method uses an industrial camera with image processing, a laser displacement sensor, a contact probe, or a code reader, depending on the mark type, to obtain the actual coordinates of the mark and dynamically compensate for the machining position. This method is suitable for flexible scenarios with inconsistent shapes or requiring adaptive machining. Through these two methods, the machining method can achieve a fast cycle time with preset parameters and flexibly adapt to workpieces with feature marks, ensuring the positional accuracy and process adaptability of the positioning hole.

[0035] Furthermore, step S200 includes: S250: The composite tool 100 is used to machine positioning holes in the process section of the plate to be processed; Correspondingly, after step S400, the following step is also included: S500: Remove the process segment from the material to be processed.

[0036] When machining the positioning hole using the composite tool 100, the hole is not drilled directly in the finished shell area. Instead, the positioning hole is machined in a pre-set process segment on the plate to be machined, such as the extended area of ​​the plate edge. After the reference plane milling is completed and the plate to be machined is removed from the worktable, the positioning hole on the process segment and the machined reference plane are used to position and fix the plate to be machined in the machining fixture. After all subsequent bottom surface machining and other processes are completed, an additional removal step is added to cut off the entire process segment containing the positioning hole from the plate to be machined. With this design, the positioning hole only serves as a temporary clamping feature for fixture positioning and is eventually removed along with the process segment, thus avoiding leaving unnecessary holes or marks on the finished shell. This ensures a high-precision positioning reference during machining and meets the process requirements of the shell parts for a complete surface or a hole-free specific area.

[0037] In addition, step S300 includes: S310: Switch the cutting tool to mill a reference plane on the process section of the plate to be processed.

[0038] After switching the cutting tool, in the step of milling the reference plane on the sheet metal to be processed, the reference plane is also machined on the process segment, that is, it is located in the same process segment area as the positioning hole. By setting both the positioning hole and the reference plane in the process segment, when the process segment is subsequently removed, these two temporary features used only for intermediate clamping and positioning will be removed together, leaving no holes or machining reference marks on the finished housing. This design ensures the integrity and appearance requirements of the finished product area, while allowing the positioning hole and the reference plane to work together for tooling clamping during the machining process (e.g., using the reference plane as the main positioning surface and the positioning hole as an anti-rotation auxiliary), thus meeting the dual requirements of high-precision intermediate positioning and no redundant features in the final part.

[0039] Furthermore, step S200 includes: S260: The composite tool 100 is axially fed by the processing equipment according to multiple processing parameters to process positioning holes on the plate to be processed.

[0040] During the machining of the positioning hole using the composite tool 100, the machining equipment does not use a single, unchanging machining parameter for axial feed. Instead, it controls each functional segment of the composite tool 100 according to multiple different machining parameters. Since the composite tool 100 is sequentially provided with a guide segment 1, a roughing segment 2, a finishing segment 3, and a chamfering segment 4 along the axial direction, each segment has a different structure, diameter, and cutting mechanism. For example, the roughing segment 2 is responsible for quickly removing excess material, the finishing segment 3 needs to ensure hole diameter accuracy, and the chamfering segment 4 forms an edge chamfer to remove machining burrs. Therefore, the machining equipment needs to dynamically adjust parameters such as spindle speed, feed per revolution, and axial feed rate according to the tool segment currently participating in the cutting. For example, the guide segment 1 uses a lower feed to accurately introduce the workpiece, the roughing segment 2 uses a higher speed and larger feed to improve efficiency, the finishing segment 3 reduces the feed and may adjust the speed to control surface quality, and the chamfering segment 4 uses a moderate feed to complete edge finishing. By differentiating and controlling multiple machining parameters, the composite tool 100 can automatically match the ideal cutting conditions of each segment in a single axial feed, thereby taking into account machining efficiency, accuracy and tool life.

[0041] Specifically, the machining parameters include rotational speed, feed rate, and depth of cut, and the plurality of machining parameters include roughing parameters and finishing parameters; The roughing parameters are set as follows: rotational speed S9000-S13000, feed rate F1000-F1800, and depth of cut 0.05mm-0.16mm. The roughing parameters are used by the guide section 1 and the roughing section 2 to process the plate to be processed. The finishing parameters are set to a rotational speed of S9000-S13000, a feed rate of F500-F800, and a depth of cut of 0.05mm-0.1mm. These finishing parameters are used for the finishing section 3 and the chamfering section 4 to process the sheet metal to be processed.

[0042] In this embodiment, the roughing and finishing parameters used by the composite tool 100 when machining the positioning hole are mainly defined. The roughing parameters are set to a rotational speed of S9000-S13000, a feed rate of F1000-F1800, and a depth of cut of 0.05mm-0.16mm. These roughing parameters are used by the guide section 1 and the roughing section 2 to machine the material to be machined, achieving rapid removal of excess material with a higher feed rate and a larger depth of cut. The finishing parameters are set to a rotational speed of S9000-S13000, a feed rate of F500-F800, and a depth of cut of 0.05mm-0.1mm. These finishing parameters are used by the finishing section 3 and the chamfering section 4 to machine the material to be machined, ensuring hole diameter accuracy, surface quality, and chamfer consistency by reducing the feed rate and the depth of cut. The two sets of parameters are consistent in the rotational speed range (both S9000-S13000), but there are significant differences in the feed rate and depth of cut. This allows the composite tool 100 to automatically match the corresponding cutting conditions according to the functional requirements of different tool sections during one axial feed, thus balancing the high efficiency of roughing and the high precision of finishing.

[0043] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A composite cutting tool, used in machining equipment, characterized in that, It includes a guide section, a roughing section, a finishing section, a chamfering section, and a fixing section arranged sequentially along its axial direction. The guide section is gradually tapered away from the roughing section. The diameter of the roughing section is smaller than the diameter of the finishing section. The fixing section is used to fix it to the spindle interface of the processing equipment.

2. The composite cutting tool as described in claim 1, characterized in that, The roughing section includes a drill bit and / or the finishing section includes a reamer.

3. A processing equipment, characterized in that, include: The main body is provided with a worktable and a spindle interface corresponding to the worktable. The worktable is provided with a positioning structure and a clamping structure. as well as, At least one cutting tool, the cutting tool being detachably disposed on the spindle interface, and the at least one cutting tool including at least one composite cutting tool, the composite cutting tool including the composite cutting tool as described in any one of claims 1-2.

4. A shell processing method, employing the processing equipment as described in claim 3, characterized in that, The steps of the shell processing method include: The plate to be processed is positioned and fixed on the worktable by the positioning structure and the clamping structure; The composite tool is used to machine positioning holes on the plate to be processed; Switch the cutting tool to mill a reference plane on the plate to be processed; The material to be processed is removed from the worktable, and the material to be processed is positioned and fixed in the processing fixture using the positioning holes and the reference plane.

5. The shell processing method as described in claim 4, characterized in that, The processing equipment has two composite cutting tools, and the finishing sections of the two composite cutting tools are sized differently. The step of machining positioning holes on the plate to be processed using the composite cutting tools includes: A first positioning hole is machined on the plate to be processed using one of the aforementioned composite cutting tools; Switch to another composite tool to machine a second positioning hole on the plate to be processed.

6. The shell processing method as described in claim 4, characterized in that, The step of machining positioning holes on the material to be processed using the composite tool includes: The positioning holes are machined according to preset point parameters; or... Identify the feature marks on the material to be processed, and process the positioning holes at the feature marks.

7. The shell processing method as described in claim 4, characterized in that, The step of machining positioning holes on the material to be processed using the composite tool includes: The composite tool is used to machine positioning holes in the process section of the plate to be processed; After the step of removing the workpiece from the worktable and positioning and fixing the workpiece in the processing fixture using the positioning holes and the reference plane, the method further includes the step of: Remove the process segment from the material to be processed.

8. The shell processing method as described in claim 7, characterized in that, The step of switching the cutting tool to mill a reference plane on the plate to be processed includes: Switch the cutting tool to mill a reference plane on the process section of the material to be processed.

9. The shell processing method as described in claim 4, characterized in that, The step of machining positioning holes on the material to be processed using the composite tool includes: The composite tool is fed axially by the processing equipment according to multiple processing parameters in order to process positioning holes on the plate to be processed.

10. The shell processing method as described in claim 9, characterized in that, The machining parameters include rotational speed, feed rate, and depth of cut; the multiple machining parameters include roughing parameters and finishing parameters. The roughing parameters are set as follows: rotational speed S9000-S13000, feed rate F1000-F1800, and depth of cut 0.05mm-0.16mm. The roughing parameters are used for the processing of the material to be processed by the guide section and the roughing section. The finishing parameters are set to a rotational speed of S9000-S13000, a feed rate of F500-F800, and a depth of cut of 0.05mm-0.1mm. These finishing parameters are used for the finishing section and the chamfering section to process the sheet metal to be processed.

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