CN114433893B - Cutting blade with different base structures in circumferential direction - Google Patents
Cutting blade with different base structures in circumferential direction Download PDFInfo
- Publication number
- CN114433893B CN114433893B CN202111680917.7A CN202111680917A CN114433893B CN 114433893 B CN114433893 B CN 114433893B CN 202111680917 A CN202111680917 A CN 202111680917A CN 114433893 B CN114433893 B CN 114433893B
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- matrix
- substrate
- cutting
- center
- cutting insert
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- 238000005520 cutting process Methods 0.000 title claims abstract description 128
- 239000011159 matrix material Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 52
- 239000000843 powder Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- 239000010941 cobalt Substances 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000126 substance 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a cutting blade with different circumferential matrix structures, which comprises a plate-shaped blade body, wherein the plate-shaped blade body comprises an upper surface, a lower surface and a side surface for connecting the upper surface and the lower surface, the upper surface comprises a groove molded surface and a center surface, the side surface and the groove molded surface are intersected to form a cutting edge, the periphery of the matrix of the plate-shaped blade body at least comprises at least one first matrix and at least one second matrix, the first matrix and the second matrix are closely connected and are arranged between the upper surface and the lower surface at intervals along the circumferential direction, the second matrix and the first matrix are made of different materials, and the cutting blade with different circumferential matrix structures has the advantages of meeting the requirements of different cutting working conditions, being high in impact resistance and wear resistance, good in universality and the like.
Description
Technical Field
The invention mainly relates to the field of metal cutting processing, in particular to a cutting blade with different base structures in the circumferential direction.
Background
When the cutting insert participates in cutting, cutting mainly occurs in a first cutting region in which the cutting edge receives a main cutting force, and the cutting edge is formed by intersecting a rake surface on an upper surface and a flank surface on a side surface of the cutting insert, and although the wear rate and degree of the flank surface of the cutting insert determine the service life of the cutting insert, the service life of the cutting insert is greatly reduced if the cutting edge is broken or a wear groove is formed in the rake surface.
At present, the impact resistance of the cutting blade is improved by adopting a high-strength matrix, the cutting life of the cutting blade is greatly improved by being matched with a high-wear-resistance and low-resistance coating, but the coating can be dropped or quickly worn due to abnormal scraping of chips in the cutting process due to the small thickness of the coating of the cutting blade, so that the impact resistance and the wear resistance of the cutting blade are still the most effective methods for improving the service life of the cutting blade by adopting the high-strength and high-wear-resistance matrix, but the impact resistance and the wear resistance of the cutting blade are always difficult to be fully considered, so that a plurality of cutting blades with different appearance structures and matrix structures are required to be configured to meet various cutting working conditions, and the use cost of the cutting blade is improved.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the cutting blade which can meet the requirements of different cutting working conditions, has high impact resistance, high wear resistance and good universality and has different base structures in the circumferential direction.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a circumference has cutting insert of different matrix structures, includes the plate-shaped cutter body, the plate-shaped cutter body includes upper surface, lower surface and connects the side of upper surface and lower surface, the upper surface includes groove profile and centre level, the crossing cutting edge that forms of side and groove profile, the base member periphery of plate-shaped cutter body includes at least one first base member and at least one second base member, first base member and second base member closely link to each other and set up in along the circumference interval between upper surface and the lower surface, second base member and first base member have different materials.
As a further improvement of the above technical scheme:
the cobalt content of the first matrix is omega 2, and the cobalt content of the second matrix is omega 1, so that the following conditions are satisfied: omega 1-omega 2 is more than or equal to 0 and less than or equal to 5 percent.
The powder particle size of the first matrix is smaller than the powder particle size of the second matrix.
The center of the matrix is provided with a center matrix, and the second matrix and the center matrix have the same matrix structure.
The center of the matrix is provided with a center matrix, and the first matrix and the center matrix have the same matrix structure.
The center of the matrix is provided with a center matrix, and the structures of the center matrix, the first matrix and the second matrix are different.
The side comprises a main side surface and an angle side surface, the main side surface and the upper surface are intersected to form a main cutting edge, the angle side surface and the upper surface are intersected to form an angle cutting edge, the first substrate is simultaneously provided with the main cutting edge and the angle cutting edge, and the second substrate is only provided with the main cutting edge.
The diameter of the inscribed circle of the main cutting edge is D, the first matrix is uniformly arranged on the outer side of the circumference with the diameter of D, and the requirements are satisfied: d is more than or equal to 0.6D and less than or equal to 0.8D.
The cutting insert having a different base structure in the circumferential direction further includes a center hole, the center Kong Kaishe being on the center base, the cutting insert having a different base structure in the circumferential direction being symmetrical about a central axis of the center hole.
Compared with the prior art, the invention has the advantages that:
the periphery of the substrate of the plate-shaped cutter body at least comprises at least one first substrate and at least one second substrate, the first substrate and the second substrate are tightly connected and are arranged between the upper surface and the lower surface at intervals along the circumferential direction, the second substrate and the first substrate are made of different materials, namely, the cutting blade can be provided with hard alloy substrate composition units with different structures, so that the cutting blade simultaneously has good impact resistance and wear resistance, for example, the first substrate is made of hard alloy with high hardness and fine granularity, the second substrate is made of hard alloy with high toughness and coarse granularity, the strong impact resistance of the second substrate ensures that the first substrate provided with the cutting edge has good vibration resistance and impact resistance in the cutting process, the service life of the cutting blade is greatly prolonged, the universality of the cutting blade is improved, the technical problem that the hardness and toughness of the cutting blade are difficult to consider is solved, the processing requirements of various different working conditions are met, and the use cost of the cutting blade is reduced.
Drawings
FIG. 1 is a schematic perspective view of a first embodiment of a cutting insert of the present invention having a circumferentially different base structure;
FIG. 2 is a front view of a first embodiment of a cutting insert of the present invention having a circumferentially different base structure;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is a schematic perspective view of a second basic body of a first embodiment of a cutting insert having a different basic body configuration in the circumferential direction in accordance with the present invention;
FIG. 5 is a schematic perspective view of a second embodiment of a cutting insert of the present invention having a different base structure in the circumferential direction;
FIG. 6 is a front view of a second embodiment of a cutting insert of the present invention having a different base structure in the circumferential direction;
FIG. 7 is a view B-B of FIG. 6;
FIG. 8 is a schematic perspective view of a first basic body of a second embodiment of a cutting insert having a different basic body configuration in the circumferential direction in accordance with the present invention;
FIG. 9 is a schematic perspective view of a third embodiment of a cutting insert of the present invention having a different base structure in the circumferential direction;
FIG. 10 is a front view of a third embodiment of a cutting insert of the present invention having a different base structure in the circumferential direction;
fig. 11 is a C-C view of fig. 10.
The reference numerals in the drawings denote:
1. a plate-like cutter body; 2. an upper surface; 21. a groove profile; 22. a center plane; 3. a lower surface; 4. a side surface; 41. a main side; 42. corner sides; 5. a cutting edge; 51. a main cutting edge; 52. an angle cutting edge; 6. a base; 61. a first substrate; 62. a second substrate; 63. a central base; 7. a central bore; 8. a central axis.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific examples.
Fig. 1 to 4 show a first embodiment of a cutting insert having a different base structure in the circumferential direction according to the present invention, the cutting insert having a different base structure in the circumferential direction according to the present invention comprises a plate-shaped insert body 1, the plate-shaped insert body 1 comprises an upper surface 2, a lower surface 3 and a side surface 4 connecting the upper surface 2 and the lower surface 3, the upper surface 2 comprises a groove profile 21 and a center surface 22, the side surface 4 and the groove profile 21 intersect to form a cutting edge 5, the periphery of a base 6 of the plate-shaped insert body 1 comprises at least one first base 61 and at least one second base 62, the first base 61 and the second base 62 are closely connected and are arranged between the upper surface 2 and the lower surface 3 at intervals in the circumferential direction, the first base 61 and the second base 62 have different materials, i.e. the cutting insert can have cemented carbide base constituent units of different structures, so that the cutting insert has good impact resistance and wear resistance, for example, the first base 61 is composed of cemented carbide of high hardness and fine granularity, the second base 62 is composed of high toughness and coarse grain cemented carbide, the second base 62 is composed of high in toughness and coarse grain, the first base 61 has the wear resistance and the same as the cutting insert has the high impact resistance, and the cutting performance is not guaranteed, and the cutting performance is greatly improved.
The first substrate 61 has a cobalt content ω1 and the second substrate 62 has a cobalt content ω2, so that the cutting wear resistance and impact resistance of the cutting insert should be ensured: 0.ltoreq.ω2- ω1.ltoreq.5%, ω1=8% in this embodiment, ω2=10%.
In this embodiment, the powder particle size of the first matrix 61 is smaller than that of the second matrix 62, the powder particle size refers to the size of the powder particles in the matrix, and the larger particle size refers to the larger size of the powder particles.
In this embodiment, the center of the base 6 is provided with a center base 63, and the second base 62 and the center base 63 have the same base structure. The first matrix 61 is arranged in the circumference of the cutter, the second matrix 62 is adjacent to the center of the cutter, in the cutting process, the second matrix 62 has lower cutting speed, cutting vibration easily occurs in efficient cutting, the second matrix 62 and the center matrix 63 have the same structure, the forming difficulty of the blade can be extremely low, and the impact resistance, the cutting efficiency and the cutting life of the blade can be improved by adopting the powder granularity and the high cobalt content matrix.
In this embodiment, the side surface 4 includes a main side surface 41 and an angular side surface 42, the main side surface 41 and the upper surface 2 intersect to form a main cutting edge 51, the angular side surface 42 and the upper surface 2 intersect to form an angular cutting edge 52, the first base 61 is provided with the main cutting edge 51 and the angular cutting edge 52 at the same time, the second base 62 is provided with only the main cutting edge 51, the first base 61 has a higher cutting speed than the second base 62, the removal amount of cutting material is large, the first base 61 wears faster, the angular cutting edge 52 adjacent to the first base 61 is subjected to the maximum cutting speed, and the cutting life is short, in order to prolong the cutting life of the main cutting edge 51 and the angular cutting edge 52 on the first base 61, the first base 61 is provided with the main cutting edge 51 and the angular cutting edge 52 at the same time, thereby approaching the life of the main cutting edge 51 on the second base 62.
The diameter of the inscribed circle of the main cutting edge 51 is D, and the first substrate 61 is uniformly disposed outside the circumference of the diameter D, so that the strength of the outer substrate 61 and the impact resistance of the cutting edges of the main cutting edge 51 and the corner cutting edge 52 on the outer substrate 61 should be satisfied: d is 0.6 d.ltoreq.0.8D, in this example d=0.7D.
In this embodiment, the cutting insert having different base structures in the circumferential direction further includes a center hole 7, the center hole 7 is opened on the center base 63, and the cutting insert having different base structures in the circumferential direction is symmetrical about the center axis 8 of the center hole 7.
Fig. 5 to 8 show a second embodiment of a cutting insert according to the present invention having different substrates inside and outside, which is substantially identical to the first embodiment, except that: in this embodiment, the center of the base 6 is provided with a center base 63, and the second base 62 and the center base 63 have the same base structure. The first matrix 61 is arranged in the circumference of the cutter, the second matrix 62 is adjacent to the center of the cutter, in the cutting process, the second matrix 62 has higher cutting speed, the size finishing capability is reduced due to easy rapid abrasion in the finish machining cutting, the second matrix 62 and the center matrix 63 have the same structural matrix, the forming difficulty of the blade can be reduced, and meanwhile, the finishing service life and the finishing precision of the blade can be greatly improved by adopting the small-powder-granularity and low-cobalt-content matrix.
Fig. 9 to 11 show a third embodiment of a cutting insert according to the present invention having different substrates inside and outside, which is substantially identical to the first embodiment, except that: in this embodiment, the center of the substrate 6 is provided with a center substrate 63, and the substrate structures of the center substrate 63, the first substrate 61, and the second substrate 62 are different. The first substrate 61 and the second substrate 62 are respectively provided with powder granularity and cobalt content so as to adapt to different cutting states of the circumference or adjacent center of the cutter, ensure the consistency of the service lives of cutting edges on the first substrate 61 and the second substrate 62, exert the cutting capability of blade finish machining and efficient machining to the greatest extent according to different actual cutting conditions, and design the center substrate 63 as a substrate different from the structures of the first substrate 61 and the second substrate 62.
In the above embodiments, the cutting insert 1 is designed in a substantially quadrangular shape, and the present invention is not limited thereto, and the insert may be designed in other shapes such as a trilateral shape according to different insert functions and performance requirements.
In the above embodiment, the first and second substrates 61 and 62 of the cutting insert 1 are uniformly disposed on the outer side of the center substrate 63, and the outer side of the center substrate 63 is formed in a circular shape, and the present invention is not limited thereto, and other shapes such as an outer side polygon of the center substrate 63 may be used depending on the insert shape and the molding process.
While the invention has been described in terms of preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the invention. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (8)
1. Cutting insert with different matrix structures in the circumferential direction, comprising a plate-shaped cutter body (1), the plate-shaped cutter body (1) comprises an upper surface (2), a lower surface (3) and a side surface (4) connecting the upper surface (2) and the lower surface (3), the upper surface (2) comprises a groove profile (21) and a central surface (22), and the side surface (4) and the groove profile (21) intersect to form a cutting edge (5), characterized in that: the periphery of the substrate (6) of the plate-shaped cutter body (1) at least comprises at least one first substrate (61) and at least one second substrate (62), the first substrate (61) and the second substrate (62) are tightly connected and are arranged between the upper surface (2) and the lower surface (3) at intervals along the circumferential direction, the first substrate (61) and the second substrate (62) are made of different materials, the side surface (4) comprises a main side surface (41) and a corner side surface (42), the main side surface (41) and the upper surface (2) are intersected to form a main cutting edge (51), the corner side surface (42) and the upper surface (2) are intersected to form a corner cutting edge (52), the main cutting edge (51) and the corner cutting edge (52) are simultaneously arranged on the first substrate (61), and only the main cutting edge (51) is arranged on the second substrate (62).
2. The cutting insert having circumferentially different basic structures according to claim 1, wherein: the cobalt content of the first substrate (61) is ω2, and the cobalt content of the second substrate (62) is ω1, so that: omega 1-omega 2 is more than or equal to 0 and less than or equal to 5 percent.
3. The cutting insert having circumferentially different basic structures according to claim 2, wherein: the powder particle size of the first matrix (61) is smaller than the powder particle size of the second matrix (62).
4. A cutting insert having circumferentially different basic structures according to claim 3, wherein: the center of the base body (6) is provided with a center base body (63), and the second base body (62) and the center base body (63) have the same base body structure.
5. A cutting insert having circumferentially different basic structures according to claim 3, wherein: the center of the base body (6) is provided with a center base body (63), and the first base body (61) and the center base body (63) have the same base body structure.
6. A cutting insert having circumferentially different basic structures according to claim 3, wherein: the center of the matrix (6) is provided with a center matrix (63), and the matrix structures of the center matrix (63) and the first matrix (61) and the second matrix (62) are different.
7. The cutting insert having circumferentially different basic structures according to any one of claims 1 to 6, wherein: the diameter of the inscribed circle of the main cutting edge (51) is D, and the first matrix (61) is uniformly arranged on the outer circumference of the diameter D, so that the condition that: d is more than or equal to 0.6D and less than or equal to 0.8D.
8. The cutting insert having circumferentially different basic structures according to any one of claims 4 to 6, wherein: the cutting insert with different base structures in the circumferential direction further comprises a central hole (7), the central hole (7) is formed in the central base body (63), and the cutting insert with different base structures in the circumferential direction is symmetrical about a central axis (8) of the central hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111680917.7A CN114433893B (en) | 2021-12-30 | 2021-12-30 | Cutting blade with different base structures in circumferential direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111680917.7A CN114433893B (en) | 2021-12-30 | 2021-12-30 | Cutting blade with different base structures in circumferential direction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114433893A CN114433893A (en) | 2022-05-06 |
| CN114433893B true CN114433893B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111680917.7A Active CN114433893B (en) | 2021-12-30 | 2021-12-30 | Cutting blade with different base structures in circumferential direction |
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| Country | Link |
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| CN (1) | CN114433893B (en) |
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|---|---|---|---|---|
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| JP2009220267A (en) * | 2008-02-18 | 2009-10-01 | Sumitomo Electric Ind Ltd | Cutting tool |
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|---|---|---|---|---|
| US7322776B2 (en) * | 2003-05-14 | 2008-01-29 | Diamond Innovations, Inc. | Cutting tool inserts and methods to manufacture |
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2021
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| CN114433893A (en) | 2022-05-06 |
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