CN116571771B - Boring cutter with a plurality of cutting parts - Google Patents
Boring cutter with a plurality of cutting parts Download PDFInfo
- Publication number
- CN116571771B CN116571771B CN202310852167.XA CN202310852167A CN116571771B CN 116571771 B CN116571771 B CN 116571771B CN 202310852167 A CN202310852167 A CN 202310852167A CN 116571771 B CN116571771 B CN 116571771B
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- cutter
- cutting
- cutting edge
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- 230000007704 transition Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 238000003754 machining Methods 0.000 abstract description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
- B23B27/1644—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped by a clamping member acting almost perpendicularly on the chip-forming plane and at the same time upon the wall of a hole in the cutting insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/04—Overall shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/08—Rake or top surfaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention belongs to the technical field of machining cutters, and particularly relates to a boring cutter with a plurality of cutting parts, which comprises a cutter body and a cutter blade which are arranged separately, wherein the cutter blade is detachably fixed on the cutter body; meanwhile, the invention has multiple purposes, and when in axial cutting, the main cutting edge and the tool nose remove metal from the workpiece, so that the reaming function can be realized; when radial cutting is performed, the main cutting edge, the tool nose and the auxiliary cutting edge perform metal removal on the workpiece, so that a grooving function can be realized, and different requirements in mechanical processing can be met.
Description
Technical Field
The invention belongs to the technical field of machining tools, and particularly relates to a boring cutter with a plurality of cutting parts.
Background
Boring is mainly applied to cutting materials such as steel pieces, high-temperature alloys, nickel alloys and the like. Compared with other hole processing technologies, the boring is not limited by the size of a cutter, has stronger error correction capability, can correct the error of the original rough hole axis through multiple feeding, and can keep higher position precision of the boring and the positioning reference. The boring cutter with integrated cutter head and cutter body has poor economical efficiency, and because of the cutter head and cutter body integration, the groove type structure is single, when the cutter head wearing and tearing seriously damage, the cutter body also is scrapped along with the cutter head, and although the technical scheme that cutter head and cutter body are separately arranged also appears in the prior art, the life-span of the existing boring cutter is still poor, and the function is single, can't satisfy the realization of different demands during the mechanical processing.
Disclosure of Invention
In order to solve the problems in the prior art, the main object of the present invention is to provide a boring cutter with a plurality of cutting portions.
In order to solve the technical problems, according to one aspect of the present invention, the following technical solutions are provided:
a boring cutter with a plurality of cutting parts comprises a cutter blade and a cutter body which are arranged separately, wherein the cutter blade is detachably fixed on the cutter body;
the blade comprises an upper surface, a bottom surface, an inner hole penetrating the upper surface and the bottom surface and a plurality of side surfaces connecting the upper surface and the bottom surface; the side surface comprises a side surface I, a side surface II and a side cylindrical surface;
the blade comprises a plurality of cutting parts with the same structure, and the cutting groove of the cutting part comprises a cutter point, a main cutting edge, a secondary cutting edge, a front cutter surface and a chip-removing table;
the tool nose extends to the bottom surface along the direction of the inner hole to form a front tool face, and the front tool face extends to the upper surface along the arc transition of the direction of the inner hole; the first front cutter surface and the side surface form a main cutting edge, the second front cutter surface and the side surface form a secondary cutting edge, and the front cutter surface and the side cylindrical surface form a cutter point.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the number of cutting parts of the boring cutter with a plurality of cutting parts is N, and N is a positive integer more than or equal to 4.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the first minor cutting edge of the first cutting part of the blade is connected with a first tool nose, the first tool nose is connected with a first main cutting edge, the first main cutting edge is connected with a first edge, and the first edge is connected with a second edge.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the included angle between the main cutting edge and the auxiliary cutting edge is gamma, and gamma is more than or equal to 70 degrees and less than or equal to 80 degrees.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the included angle between the main cutting edge and the radial direction of the cutter body is beta, and beta is more than or equal to 3 degrees and less than or equal to 7 degrees.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the included angle between the auxiliary cutting edge and the axial direction of the cutter body is gamma 1, and gamma 1 is more than or equal to 3 degrees and less than or equal to 7 degrees.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the included angle between the direction of the edge where the chip-removing table intersects with the upper surface and the axial direction of the cutter body is gamma 2, and the gamma 2 is more than or equal to 45 degrees and less than or equal to 55 degrees.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the included angle between the first blade edge and the radial direction of the cutter body is gamma 3, and gamma 3 is more than or equal to 50 degrees and less than or equal to 60 degrees.
As a preferred embodiment of the boring tool having a plurality of cutting portions according to the present invention, there is provided: the bottom surface and the side surface of the blade are a grinding-grade bottom surface and a grinding-grade side surface, and a stable installation contact surface is formed with the cutter body.
The beneficial effects of the invention are as follows:
the invention provides a boring cutter with a plurality of cutting parts, which comprises a cutter body and a cutter blade which are arranged separately, wherein the cutter blade is detachably fixed on the cutter body, when the cutter begins to work, the first cutting part is an effective cutting part for cutting a workpiece, when the first cutting part is worn seriously, the cutter blade is fixed on the cutter body after rotating, the second cutting part is an effective cutting part for continuously cutting the workpiece, and the cutter blade is circularly replaced when the Nth cutting part is not worn seriously, and the service life of the boring cutter with the plurality of cutting parts is equivalent to N times that of a single-edge boring cutter. Meanwhile, the invention has multiple purposes, and when in axial cutting, the main cutting edge and the tool nose remove metal from the workpiece, so that the reaming function can be realized; when radial cutting is performed, the main cutting edge, the tool nose and the auxiliary cutting edge perform metal removal on the workpiece, so that a grooving function can be realized, and different requirements in mechanical processing can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a boring tool having four cutting portions according to one embodiment of the present invention;
FIG. 2 is a perspective view of an insert having four cutting portions according to one embodiment of the present invention;
fig. 3 is an enlarged view of the K portion in fig. 2;
FIG. 4 is a front view of an insert having four cutting portions according to one embodiment of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
Wherein, 1-upper surface, 2-bottom surface, 3-inner hole, 4-side surface, 5-first cutting part, 6-second cutting part, 7-third cutting part and 8-fourth cutting part; 9-knife tip, 10-main cutting edge, 11-auxiliary cutting edge, 12-front knife face, 13-chip-reflecting table, 14-side first, 15-side second, 16-side cylindrical surface, 17-first edge, 18-second edge, 9' -first knife tip, 10' -first main cutting edge, 11' -first auxiliary cutting edge, 100-blade and 200-knife body.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description will be made clearly and fully with reference to the technical solutions in the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. 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.
The boring cutter with the multiple cutting parts has the service life equivalent to N times that of a single-edge boring cutter, saves the time for replacing the cutter, and improves the efficiency and the economic value. Meanwhile, the invention has multiple purposes, and when in axial cutting, the main cutting edge and the tool nose remove metal from the workpiece, so that the reaming function can be realized; when radial cutting is performed, the main cutting edge, the tool nose and the auxiliary cutting edge perform metal removal on the workpiece, so that a grooving function can be realized.
As shown in fig. 1 to 5, a boring cutter having four cutting portions according to an embodiment of the present invention includes a cutter body 200 and a cutter 100 separately provided, the cutter 100 being detachably fixed to the cutter body 200; for example, the blade 100 may be fixed to the blade body 200 by screws.
The insert 100 includes an upper surface 1, a bottom surface 2, an inner bore 3 extending through the upper and bottom surfaces, and a plurality of side surfaces 4 connecting the upper and bottom surfaces; the side surface 4 comprises a side surface I14, a side surface II 15 and a side cylindrical surface 16; the bottom surface 2 and the side surface 4 of the blade 100 are grinding-stage bottom surfaces and grinding-stage side surfaces, and form stable mounting contact surfaces with the blade body 200.
As shown in fig. 1, the insert 100 includes four cutting parts with the same structure, namely a first cutting part 5, a second cutting part 6, a third cutting part 7, and a fourth cutting part 8, wherein the cutting grooves of the cutting parts include a cutter point 9, a main cutting edge 10, a secondary cutting edge 11, a rake surface 12, and a chip-removing table 13; when the tool starts to operate, the first cutting portion 5 starts to cut the workpiece as an effective cutting portion. When the first cutting part 5 is severely worn, the detachable blade is installed on the cutter body in a 90-degree anticlockwise rotation mode, and at this time, the second cutting part 6 starts to cut the workpiece continuously for the effective cutting part. In this way, the insert is replaced when the fourth cutting portion 8 is not usable when it is severely worn. The boring cutter with four cutting parts provided by the invention has the service life of four times that of a single-edge boring cutter, saves the time for replacing the cutter, and improves the efficiency and the economic value.
As shown in fig. 2-3, in this embodiment, the tool nose 9 extends toward the bottom surface 2 along the direction of the inner hole 3 to form a rake surface 12, and the rake surface 12 extends to the upper surface 1 along the circular arc transition of the direction of the inner hole 3; the rake face 12 and the side face 14 form a main cutting edge 10, the rake face 12 and the side face 15 form a secondary cutting edge 11, and the rake face 12 and the side cylindrical face 16 form a cutter point 9.
As shown in fig. 4, in this embodiment, the first minor cutting edge 11' of the first cutting portion of the insert 100 is connected to a first nose 9', the first nose 9' is connected to a first major cutting edge 10', the first major cutting edge 10' is connected to a first edge 17, and the first edge 17 is connected to a second edge 18.
In this embodiment, as shown in fig. 5, the main cutting edge 10, the minor cutting edge 11 and the nose 9 are joined to form a flute profile;
the included angle between the main cutting edge 10 and the auxiliary cutting edge 11 is gamma, and gamma is more than or equal to 70 degrees and less than or equal to 80 degrees, so that the strength of the groove is effectively enhanced, and the boring cutter is not easy to collapse during cutting; specifically, the included angle γ between the main cutting edge 10 and the minor cutting edge 11 may be, for example, but not limited to, any one or any two of 70 °, 71 °, 72 °, 73 °, 74 °, 75 °, 76 °, 77 °, 78 °, 79 °, 80 °;
the included angle between the main cutting edge 10 and the radial direction of the cutter body 200 is beta, and beta is more than or equal to 3 degrees and less than or equal to 7 degrees; when the boring cutter is used for radial cutting, the main cutting edge 10 and the workpiece form a clearance state in the vertical direction, so that the main cutting edge 10 and the workpiece are prevented from being rubbed and damaged; specifically, the included angle β between the main cutting edge 10 and the radial direction of the cutter body 200 may be, for example, but not limited to, any one or any two of 3 °,4 °,5 °,6 °, and 7 °;
the included angle between the auxiliary cutting edge 11 and the axial direction of the cutter body 200 is gamma 1, and gamma 1 is more than or equal to 3 degrees and less than or equal to 7 degrees; when the boring cutter axially cuts, the auxiliary cutting edge 11 and the workpiece form a clearance state in the horizontal direction, so that the auxiliary cutting edge 11 and the workpiece are prevented from being rubbed and damaged. Specifically, the included angle γ1 between the minor cutting edge 11 and the axial direction of the cutter body 200 may be, for example, but not limited to, any one or any two of 3 °,4 °,5 °,6 °, and 7 °;
the included angle between the direction of the edge of the chip-removing table 13 intersecting with the upper surface 1 and the axial direction of the cutter body 200 is gamma 2, and the included angle is more than or equal to 45 degrees and less than or equal to 55 degrees; when the angle gamma 2 is more than or equal to 45 degrees and less than or equal to 55 degrees, the cutting chips generated by cutting the workpiece by the cutter can be orderly discharged, so that the irregular scurrying of the cutting chips is prevented from damaging the workpiece and the cutter;
the included angle between the first blade edge 17 and the radial direction of the cutter body 200 is gamma 3, and gamma 3 is more than or equal to 50 degrees and less than or equal to 60 degrees. When gamma 3 is in the range of the invention, the collision interference of the cutter and the workpiece can be prevented, the clearance effect is formed, and the strength of the cutter is ensured.
The boring cutter with the plurality of cutting parts comprises the cutter body and the cutter blade which are arranged separately, wherein the cutter blade is detachably fixed on the cutter body, when the cutter begins to work, the first cutting part is an effective cutting part for cutting a workpiece, when the first cutting part is worn seriously, the cutter blade is fixed on the cutter body after rotating, the second cutting part is an effective cutting part for continuously cutting the workpiece, and the cutter blade is replaced when the Nth cutting part cannot be used when the abrasion is serious. Meanwhile, the invention has multiple purposes, and when in axial cutting, the main cutting edge and the tool nose remove metal from the workpiece, so that the reaming function can be realized; when radial cutting is performed, the main cutting edge, the tool nose and the auxiliary cutting edge perform metal removal on the workpiece, so that a grooving function can be realized, and different requirements in mechanical processing can be met.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the content of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (3)
1. A boring cutter having a plurality of cutting portions, characterized in that,
comprises a blade (100) and a blade body (200) which are arranged separately, wherein the blade (100) is detachably fixed on the blade body (200);
the insert (100) comprises an upper face (1), a bottom face (2), an inner hole (3) penetrating the upper face and the bottom face, and a plurality of side faces (4) connecting the upper face and the bottom face; the side surface (4) comprises a side surface I (14), a side surface II (15) and a side cylindrical surface (16);
the blade (100) comprises a plurality of cutting parts with the same structure, wherein the number of the cutting parts is N, and N is a positive integer more than or equal to 4; the cutting groove of the cutting part comprises a cutter point (9), a main cutting edge (10), a secondary cutting edge (11), a front cutter surface (12) and a chip-reflecting table (13);
the tool nose (9) extends to the bottom surface (2) along the direction of the inner hole (3) to form a tool nose surface (12), and the tool nose surface (12) extends to the upper surface (1) along the arc transition of the direction of the inner hole (3); the front cutter surface (12) and the side surface I (14) form a main cutting edge (10), the front cutter surface (12) and the side surface II (15) form a secondary cutting edge (11), and the front cutter surface (12) and the side cylindrical surface (16) form a cutter point (9);
a first minor cutting edge (11 ') of a first cutting portion of the insert (100) is connected with a first tool nose (9 '), the first tool nose (9 ') is connected with a first main cutting edge (10 '), the first main cutting edge (10 ') is connected with a first edge (17), and the first edge (17) is connected with a second edge (18);
the included angle between the main cutting edge (10) and the auxiliary cutting edge (11) is gamma, and gamma is more than or equal to 70 degrees and less than or equal to 80 degrees; the included angle between the main cutting edge (10) and the radial direction of the cutter body (200) is beta, and beta is more than or equal to 3 degrees and less than or equal to 7 degrees; the included angle between the auxiliary cutting edge (11) and the axial direction of the cutter body (200) is gamma 1, and gamma 1 is more than or equal to 3 degrees and less than or equal to 7 degrees; an included angle between the direction of the edge of the chip-removing table (13) intersecting with the upper surface (1) and the axial direction of the cutter body (200) is gamma 2, and gamma 2 is more than or equal to 45 degrees and less than or equal to 55 degrees; the included angle between the first blade edge (17) and the radial direction of the cutter body (200) is gamma 3, and gamma 3 is more than or equal to 50 degrees and less than or equal to 60 degrees.
2. The boring tool with multiple cutting portions according to claim 1, wherein the bottom surface (2) and the side surfaces (4) of the insert (100) are grinding-stage bottom surfaces and grinding-stage side surfaces, forming stable mounting contact surfaces with the tool body (200).
3. The boring tool having a plurality of cutting portions according to claim 1, wherein the insert (100) is secured to the tool body (200) by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310852167.XA CN116571771B (en) | 2023-07-12 | 2023-07-12 | Boring cutter with a plurality of cutting parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310852167.XA CN116571771B (en) | 2023-07-12 | 2023-07-12 | Boring cutter with a plurality of cutting parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116571771A CN116571771A (en) | 2023-08-11 |
| CN116571771B true CN116571771B (en) | 2024-02-02 |
Family
ID=87545647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310852167.XA Active CN116571771B (en) | 2023-07-12 | 2023-07-12 | Boring cutter with a plurality of cutting parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116571771B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823162A (en) * | 2010-04-29 | 2010-09-08 | 株洲钻石切削刀具股份有限公司 | Turning tool with double layers of staggered cutting head parts |
| CN201586760U (en) * | 2009-12-16 | 2010-09-22 | 常州兆邦液压成套设备有限公司 | Overlong and overlarge diameter hydraulic cylinder bore drilling cutter |
| CN103459069A (en) * | 2011-04-08 | 2013-12-18 | 瓦尔特公开股份有限公司 | Indexable cutting insert and indexable cutting insert holder |
| CN203437668U (en) * | 2013-08-29 | 2014-02-19 | 成都邦普合金材料有限公司 | Novel small-inner-diameter boring cutter |
| CN203649433U (en) * | 2013-12-20 | 2014-06-18 | 无锡雨田精密工具有限公司 | Double-head inner hole boring cutter |
| DE102016106684A1 (en) * | 2016-04-12 | 2017-10-26 | Kemmer Hartmetallwerkzeuge Gmbh | Carrier tool for inserts with multiple cutting edges |
| CN215657909U (en) * | 2021-08-31 | 2022-01-28 | 深圳市毅克利刀具有限公司 | Hole boring cutter |
| CN216441668U (en) * | 2021-12-22 | 2022-05-06 | 东莞石龙京瓷有限公司 | Cutting insert, holder and cutting tool |
| CN115519145A (en) * | 2022-10-24 | 2022-12-27 | 中航力源液压股份有限公司 | Deep blind hole boring machining tool capable of automatically removing chips and chip removal method |
| CN218460881U (en) * | 2022-08-08 | 2023-02-10 | 上海方瀚精密工具有限公司 | Small hole boring cutter with end face blade |
-
2023
- 2023-07-12 CN CN202310852167.XA patent/CN116571771B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201586760U (en) * | 2009-12-16 | 2010-09-22 | 常州兆邦液压成套设备有限公司 | Overlong and overlarge diameter hydraulic cylinder bore drilling cutter |
| CN101823162A (en) * | 2010-04-29 | 2010-09-08 | 株洲钻石切削刀具股份有限公司 | Turning tool with double layers of staggered cutting head parts |
| CN103459069A (en) * | 2011-04-08 | 2013-12-18 | 瓦尔特公开股份有限公司 | Indexable cutting insert and indexable cutting insert holder |
| CN203437668U (en) * | 2013-08-29 | 2014-02-19 | 成都邦普合金材料有限公司 | Novel small-inner-diameter boring cutter |
| CN203649433U (en) * | 2013-12-20 | 2014-06-18 | 无锡雨田精密工具有限公司 | Double-head inner hole boring cutter |
| DE102016106684A1 (en) * | 2016-04-12 | 2017-10-26 | Kemmer Hartmetallwerkzeuge Gmbh | Carrier tool for inserts with multiple cutting edges |
| CN215657909U (en) * | 2021-08-31 | 2022-01-28 | 深圳市毅克利刀具有限公司 | Hole boring cutter |
| CN216441668U (en) * | 2021-12-22 | 2022-05-06 | 东莞石龙京瓷有限公司 | Cutting insert, holder and cutting tool |
| CN218460881U (en) * | 2022-08-08 | 2023-02-10 | 上海方瀚精密工具有限公司 | Small hole boring cutter with end face blade |
| CN115519145A (en) * | 2022-10-24 | 2022-12-27 | 中航力源液压股份有限公司 | Deep blind hole boring machining tool capable of automatically removing chips and chip removal method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116571771A (en) | 2023-08-11 |
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