CN117484185A - A reverse chip removal tool and processing method for processing bowl-shaped plug holes in motor housings - Google Patents
A reverse chip removal tool and processing method for processing bowl-shaped plug holes in motor housings Download PDFInfo
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- CN117484185A CN117484185A CN202311653957.1A CN202311653957A CN117484185A CN 117484185 A CN117484185 A CN 117484185A CN 202311653957 A CN202311653957 A CN 202311653957A CN 117484185 A CN117484185 A CN 117484185A
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- machining
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- reaming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
- B23D77/006—Reaming tools with means for lubricating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D77/00—Reaming tools
- B23D77/02—Reamers with inserted cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to a reverse chip removal cutter for machining bowl-shaped plug holes of motor shells and a machining method, wherein the cutter comprises an inner cooling hole, a reaming PCD blade, a chamfering PCD blade and a step chip blocking block; the inner Leng Kong is communicated with the central axis of the cutter; the reaming PCD blade is positioned at the top end of the cutter and comprises a reaming cutting edge and a reaming cutting edge, and an inclined plane exists between the reaming cutting edge and the reaming cutting edge; the chamfer PCD blade is positioned behind the reaming PCD blade; the cutting edge of the chamfer PCD blade is provided with a chamfer bevel; the processing method comprises the following steps: when the cutter rotates, the height of the step chip blocking block is lower than the axial height of the cutter point; when the aluminum scraps are machined into the cooling water channel, aluminum scraps generated by reaming are reversely removed under the action of the step scraps blocking block; the feeding rate is reduced at the edge of the bottom of the hole when the machining hole is penetrated, the chamfer which meets the requirements of a machining drawing is left at the machining hole, and the cutter is withdrawn; the invention can avoid generating annular aluminum scraps in the machining process and prevent defective workpieces from flowing out.
Description
Technical Field
The invention belongs to the technical field of machining, and relates to a reverse chip removal cutter for machining a bowl-shaped plug hole of a motor shell and a machining method.
Background
In the existing machining production process of the aluminum alloy new energy motor shell, circular aluminum scraps can be generated in machining of the bowl-shaped plug holes with the diameters of 26mm, and the circular aluminum scraps can remain in the shell water channel and cannot be thoroughly cleaned by cleaning equipment.
The motor shell is cast by sand, a blank hole with the diameter of D16mm is precast at the position of a bowl-shaped plug hole, and the motor shell is connected with a cooling water channel. In the machining process of the motor shell, the existing cutter can generate a large amount of aluminum scraps in a bowl-shaped plug machining test, and the aluminum scraps comprise three forms: aluminum scraps generated by reaming, and annular aluminum scraps at the joint of the water channel and the bowl-shaped plug. The annular aluminum scraps can completely enter the water channel, and the water channel is in a flat spiral strip shape, so that the annular aluminum scraps are difficult to clean up through cleaning equipment. It is necessary to examine whether annular aluminum scraps remain in the lumen waterway by a producer through an industrial endoscope and take out using a special tool. If the aluminum scraps remain in the water channel, the flow of cooling liquid is influenced when the power assembly is assembled to run, and the heat dissipation of the motor is influenced; and simultaneously, abnormal sound of the motor can be caused. At present, the problem cannot be avoided in the processing process of the bowl-shaped plug of the new energy source shell, and no effective scheme is available for avoiding the generation of annular aluminum scraps.
Patent document CN112222532a relates to a back flushing chip type internal cooling reamer, which comprises a working part and a back flushing part, wherein the working part is provided with a plurality of non-communicated chip discharging grooves extending from the end to the inside, the end area of each chip discharging groove is fixedly connected with a blade for cutting, a front end-closed internal cooling hole extends from the working part to the back flushing part, the back flushing part is provided with a back flushing hole which is obliquely and backwardly arranged and is directed to the cutting edge of the blade, thereby forming a cooling liquid flow channel through which cooling liquid flows through the cutting edge of the blade to flush out chips at a processing position. According to the backflushing chip type internal cooling reamer, when cavity type workpieces are processed, chips can be flushed out of the workpieces from processing positions along the feeding reverse direction through cooling liquid sprayed out of the backflushing holes, so that the chips are not easy to remain in the cavity type workpieces, the step of processing the chips in the workpieces is omitted, and the working efficiency and the yield of the workpieces are improved.
Patent document CN115041752a discloses a chip-removing reamer, including the reamer cutter body that has the axis, the head end of reamer cutter body is equipped with the PCD reamer head that has PCD cutting edge, the reamer cutter body distributes along the axis has the pore that intakes, the end of reamer cutter body is equipped with the inlet opening, be equipped with the wash port on the PCD cutting edge, the rotatory cutting direction along PCD cutting edge is located the rear of PCD reamer head and is equipped with the fender bits, the head end side of reamer cutter body is equipped with the position that adjoins the PCD reamer head and holds the opening, the inlet opening, the pore that intakes, the wash port communicates in proper order with holding the opening. According to the invention, the chip blocking block and the accommodating notch are matched with each other, so that the chips can be effectively prevented from falling into the machined hole, the machined chips can be orderly discharged through the concave chip discharging grooves, the chips are prevented from winding and falling out of order, the machined chips can be discharged to the outside of the machined hole by utilizing the reverse-discharging water discharging holes, the downtime of the machine tool is greatly reduced, and the machining efficiency and the product quality are effectively improved.
Patent document CN216912137U relates to a chip removing tool with replaceable chip blocking blocks, comprising a tool body, wherein a plurality of PCD tool bits and chip blocking blocks corresponding to the PCD tool bits are uniformly arranged at the left end of the tool body along the circumferential direction of the tool body, the chip blocking blocks are detachably connected above the front tool face of the PCD tool bits, the chip blocking blocks and the distance between the PCD tool bits are designed into chip removing spaces, and the chip blocking blocks are provided with various specifications and sizes to adjust the chip removing spaces. Therefore, the problem that the chip blocking block is fixed by brazing at the position of the existing PCD (polycrystalline diamond) cutter is solved, so that the chip blocking block is fixed by brazing, the chip removing space is fixed, the chip removing space is not easy to adjust for secondary use according to site requirements, and if the chip removing space is required to be adjusted, the cutter welded with the chip blocking block can only be scrapped integrally; and when the PCD tool bit of the tool is polished, and the chip blocking block is damaged or worn, the whole tool can only be scrapped.
The processing cutter scheme of above-mentioned patent document can only avoid the reaming of hole processing or reaming to produce aluminium bits get into the inner chamber to can not solve annular aluminium bits that produce, and this application avoid producing annular aluminium bits when avoiding reaming, reaming aluminium bits to get into the cooling water course.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a reverse chip removal cutter for machining a bowl-shaped plug hole of a motor shell.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme:
a reverse chip removal cutter for machining bowl-shaped plug holes of motor shells comprises an inner cooling hole, a reaming PCD blade, a chamfering PCD blade and a step chip blocking block;
the inner Leng Kong is communicated with the central axis of the cutter;
the reaming PCD blade is positioned at the top end of the cutter and comprises a reaming cutting edge and a reaming cutting edge, and an inclined plane 9 is arranged between the reaming cutting edge and is used for reaming and reaming;
the chamfer PCD blade is positioned behind the reaming PCD blade; the cutting edge of the chamfer PCD blade is provided with a chamfer bevel for orifice chamfering.
Further, the reaming PCD insert is welded to the cutter arbor.
Further, the step chip blocking block and the cutter bar base body are made of hard alloy materials.
Further, the step chip block is connected to the tool base by welding.
A machining method of a reverse chip removal cutter for machining a bowl-shaped plug hole of a motor shell comprises the following steps:
when the cutter rotates, the height of the step chip blocking block is lower than the axial height of the cutter point;
when the aluminum scraps are machined into the cooling water channel, aluminum scraps generated by reaming are reversely removed through the action of the step scraps blocking block, namely the aluminum scraps are discharged to the main shaft direction;
and (3) reducing the feeding rate at the edge of the bottom of the hole when the machining hole is penetrated, leaving a chamfer which meets the requirements of a machining drawing at the machining hole opening, and withdrawing the cutter.
Further, the edge of the bottom of the hole when the hole is penetrated is at a distance of about 1mm to 3mm from the bottom surface.
Further, the "floor" in distance from the floor is the right wall of waterway C in FIG. 3.
The processing is a process, namely, the edge of the bottom of the hole when the hole is penetrated is from the bottom surface to the position which is about 1mm to 3mm away from the bottom surface "
Further, the height of the step chip blocking block is lower than the axial height of the cutter tip by 0.2mm-0.5mm, the feeding f of the cutter per rotation is less than or equal to 0.2mm/rev, the linear speed of the cutter is limited within the recommended range 1500mm/S of the diamond blade, and the rotating speed S is limited to be less than or equal to 18373rev/min according to the diameter phi=26 mm of the cutter;
further, the feeding speed is reduced to be less than 60% of the original feeding speed when the distance from the bottom surface is 1mm-3mm, the chamfering is carried out until the chamfering which meets the requirement of a processing drawing is left on the hole to be processed, and the cutter is withdrawn.
Further, at the edge of the bottom of the hole when the machining hole is communicated, part of blank is machined by a reaming cutting edge of the reaming PCD blade, and the reaming cutting edge of the reaming PCD blade is machined to the size required by the drawing, so that the generation of annular aluminum scraps is avoided.
Compared with the prior art, the invention has the beneficial effects that:
the invention can avoid generating annular aluminum scraps in the machining process and prevent defective workpieces from flowing out.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1a is a front view of a machined blank construction;
FIG. 1b is a side view of a finished blank construction;
FIG. 2a is a front view of a machined annular aluminum chip;
FIG. 2b is a side view of a machined annular aluminum chip;
FIG. 3 is a schematic illustration of a process;
FIG. 4 is a schematic view of a tool;
in the figure:
A. a cutter;
B. the inner wall of the water channel motor shell;
C. a water channel;
D. machining the bottom edge of the hole when the hole is penetrated;
1. holding a knife handle;
2. chip removal groove A;
3. chamfering the PCD blade;
4. reaming a PCD blade;
5. a step scraps block;
6. the first avoidance step;
7. a second avoidance step;
8. and an inner cooling hole.
9. An inclined plane;
10. chip groove B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention become more apparent, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The invention is described in detail below with reference to the attached drawing figures:
in order to overcome the defect that annular aluminum scraps are generated in the machining process of a water channel bowl-shaped plug hole of an existing new energy motor shell, the invention provides a reaming aluminum alloy machining tool adopting reverse chip removal, and a cutting edge structure of the machining tool is designed to avoid the generation of the annular aluminum scraps in the machining process.
The working principle of the invention is shown in figure 3, when the cutter A rotates, the height of the step chip blocking block is lower than the axial height of the cutter tip by 0.2mm-0.5mm (the feeding f of the cutter per rotation is less than or equal to 0.2 mm/rev), the linear speed of the cutter is limited within the recommended range of 1500mm/S of the diamond blade, and the rotating speed S is limited to be less than or equal to 18373rev/min according to the diameter phi=26 mm of the cutter. When the cooling water channel C is not machined, most of aluminum scraps generated by reaming are reversely removed through the action of the step scraps blocking block, namely the aluminum scraps are discharged to the main shaft, so that the aluminum scraps in reaming and reaming cannot enter the water channel C; the machining is carried out until the distance from the bottom surface is about 1mm-3mm, the feeding rate is reduced to be less than 60% of the original feeding, the machining is carried out until the chamfer which meets the requirement of a machining drawing of a certain part is left at the orifice to be machined, and the cutter is withdrawn;
and D is the bottom edge of the hole when the machining hole is penetrated.
And D, processing the part of blank by a reaming PCD blade, and processing the part of blank to the size required by the drawing by the reaming PCD blade, thereby avoiding the generation of annular aluminum scraps.
The working flow of the cutter processing method comprises the following steps:
opening the main shaft, opening the external cooling and the internal cooling of the machine tool, positioning to a hole machining position, feeding the machined hole to be 2mm deep on the surface of the through hole by 100%, feeding the machined hole by 60%, suspending for a period of time, and withdrawing the cutter to finish machining.
According to the invention, the annular aluminum scraps generated during reaming the bowl-shaped plug are avoided through the unique cutter structure; the aluminum scraps except the annular aluminum scraps enter the cooling water channel when the bowl-shaped plug is reamed by the unique cutter structure;
the unique cutter structure is that the reverse chip removal cutter for machining the bowl-shaped plug holes of the motor shell comprises an inner cooling hole position, a PCD blade front angle, a secondary front angle, a step chip blocking block and the like;
the inner Leng Kong is communicated with the central axis of the cutter;
the reaming PCD blade is positioned at the top end of the cutter and comprises a reaming cutting edge and a reaming cutting edge, and an inclined plane 9 is arranged between the reaming cutting edge and is used for reaming and reaming;
the chamfer PCD blade is positioned behind the reaming PCD blade; the cutting edge of the chamfer PCD blade is provided with a chamfer bevel for orifice chamfering.
The reaming PCD blade is welded on the cutter bar.
The step chip blocking block is connected to the cutter base body through welding.
Referring to fig. 1a, 1b, 2a, 2b, the differences from prior art tools are mainly that the front-most PCD blade is different, and the effect and purpose of the machining are different:
1. the design structure is provided with a reaming cutting edge and a bevel which is connected with the reaming cutting edge and the reaming cutting edge;
2. the main processing effect of the prior art cutter is to ensure that the aluminum scraps generated by S on the processing hole wall are discharged backwards, and the design can not only achieve the effect of complaining, but also avoid the annular aluminum scraps generated when the bottom of the hole is processed.
The step chip blocking block and the cutter bar base body are made of hard alloy materials and are connected to the cutter base body through welding;
the PCD blade is divided into a reaming blade and a chamfering blade, and the position distribution is shown in figure 4; the front angle and the auxiliary front angle refer to the structural characteristics of the reaming blade.
PCD represents polycrystalline diamond.
The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention will be apparent to those skilled in the art within the scope of the present invention. And all that is not described in detail in this specification is well known to those skilled in the art.
Claims (10)
1. The utility model provides a reverse chip removal cutter of motor housing bowl shape consent processing which characterized in that:
comprises an inner cooling hole, a reaming PCD blade, a chamfering PCD blade and a step chip blocking block;
the inner Leng Kong is communicated with the central axis of the cutter;
the reaming PCD blade is positioned at the top end of the cutter and comprises a reaming cutting edge and a reaming cutting edge, and an inclined plane (9) is arranged between the reaming cutting edge and is used for reaming and reaming;
the chamfer PCD blade is positioned behind the reaming PCD blade; the cutting edge of the chamfer PCD blade is provided with a chamfer bevel for orifice chamfering.
2. The reverse chip removal tool for machining a bowl-shaped plug hole of a motor housing according to claim 1, wherein:
the reaming PCD blade is welded on the cutter bar.
3. The reverse chip removal tool for machining a bowl-shaped plug hole of a motor housing according to claim 1, wherein:
the step chip blocking block and the cutter bar base body are made of hard alloy materials.
4. The reverse chip removal tool for machining a bowl-shaped plug hole of a motor housing according to claim 1, wherein:
the step chip blocking block is connected to the cutter base body through welding.
5. The machining method of the reverse chip removal cutter for machining the bowl-shaped plug hole of the motor shell is characterized by comprising the following steps of:
when the cutter rotates, the height of the step chip blocking block is lower than the axial height of the cutter point;
when the aluminum scraps are machined into the cooling water channel, aluminum scraps generated by reaming are reversely removed through the action of the step scraps blocking block, namely the aluminum scraps are discharged to the main shaft direction;
and (3) reducing the feeding rate at the edge of the bottom of the hole when the machining hole is penetrated, leaving a chamfer which meets the requirements of a machining drawing at the machining hole opening, and withdrawing the cutter.
6. The method for machining the reverse chip removal tool for machining the bowl-shaped plug hole of the motor housing according to claim 5, wherein the method comprises the following steps of:
the edge of the bottom of the hole is about 1mm-3mm away from the bottom surface when the hole is penetrated.
7. The method for machining the reverse chip removal tool for machining the bowl-shaped plug hole of the motor housing according to claim 6, wherein the method comprises the following steps of:
the "floor" in distance from the floor is the right wall of the waterway C.
8. The method for machining the reverse chip removal tool for machining the bowl-shaped plug hole of the motor housing according to claim 7, wherein the method comprises the following steps of:
the height of the step chip blocking block is lower than the axial height of the cutter tip by 0.2mm-0.5mm, the feeding f of the cutter per rotation is less than or equal to 0.2mm/rev, the linear speed of the cutter is limited within the recommended range 1500mm/S of the diamond blade, and the rotating speed S is limited to be less than or equal to 18373rev/min according to the diameter phi=26 mm of the cutter.
9. The method for machining the reverse chip removal tool for machining the bowl-shaped plug hole of the motor housing according to claim 8, wherein the method comprises the following steps of:
and (3) reducing the feeding rate to less than 60% of the original feeding rate until the distance from the bottom surface is about 1mm-3mm, processing until the chamfer which meets the requirements of processing drawing is left at the orifice to be processed, and withdrawing the cutter.
10. The method for machining the reverse chip removal tool for machining the bowl-shaped plug hole of the motor housing according to claim 9, wherein the method comprises the following steps of:
and when the machining hole is penetrated, part of blank is machined by a reaming cutting edge of the reaming PCD blade, and the reaming cutting edge of the reaming PCD blade is machined to the size required by the drawing, so that the generation of annular aluminum scraps is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311653957.1A CN117484185A (en) | 2023-12-05 | 2023-12-05 | A reverse chip removal tool and processing method for processing bowl-shaped plug holes in motor housings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311653957.1A CN117484185A (en) | 2023-12-05 | 2023-12-05 | A reverse chip removal tool and processing method for processing bowl-shaped plug holes in motor housings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117484185A true CN117484185A (en) | 2024-02-02 |
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ID=89678285
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311653957.1A Pending CN117484185A (en) | 2023-12-05 | 2023-12-05 | A reverse chip removal tool and processing method for processing bowl-shaped plug holes in motor housings |
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| CN (1) | CN117484185A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119140910A (en) * | 2024-08-26 | 2024-12-17 | 山东欧诺威数控刀具有限公司 | Anti-chip removal reamer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201231355Y (en) * | 2008-07-24 | 2009-05-06 | 宁波瑞铭机械有限公司 | Cutter |
| US20130004253A1 (en) * | 2011-07-02 | 2013-01-03 | Kennametal, Inc. | Drilling/reaming tool |
| CN107717116A (en) * | 2017-11-15 | 2018-02-23 | 大连经济技术开发区伊达工具有限公司 | A kind of easily chip breaking reamer |
| CN210059915U (en) * | 2019-05-09 | 2020-02-14 | 重庆戴贝尔钻石工具有限公司 | Novel diamond stop cutter capable of preventing front chip removal |
| CN219648842U (en) * | 2023-04-27 | 2023-09-08 | 上海新山田精密刀具有限公司 | Small diameter automatic chip breaking reamer |
-
2023
- 2023-12-05 CN CN202311653957.1A patent/CN117484185A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201231355Y (en) * | 2008-07-24 | 2009-05-06 | 宁波瑞铭机械有限公司 | Cutter |
| US20130004253A1 (en) * | 2011-07-02 | 2013-01-03 | Kennametal, Inc. | Drilling/reaming tool |
| CN107717116A (en) * | 2017-11-15 | 2018-02-23 | 大连经济技术开发区伊达工具有限公司 | A kind of easily chip breaking reamer |
| CN210059915U (en) * | 2019-05-09 | 2020-02-14 | 重庆戴贝尔钻石工具有限公司 | Novel diamond stop cutter capable of preventing front chip removal |
| CN219648842U (en) * | 2023-04-27 | 2023-09-08 | 上海新山田精密刀具有限公司 | Small diameter automatic chip breaking reamer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119140910A (en) * | 2024-08-26 | 2024-12-17 | 山东欧诺威数控刀具有限公司 | Anti-chip removal reamer |
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