CN114378321A - Cutting insert with different internal and external substrates - Google Patents
Cutting insert with different internal and external substrates Download PDFInfo
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- CN114378321A CN114378321A CN202111680364.5A CN202111680364A CN114378321A CN 114378321 A CN114378321 A CN 114378321A CN 202111680364 A CN202111680364 A CN 202111680364A CN 114378321 A CN114378321 A CN 114378321A
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- 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
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Abstract
The invention discloses a cutting blade with different matrixes inside and outside, which comprises a plate-shaped cutter body, wherein the plate-shaped cutter 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 profile and a central surface, the side surface and the groove profile are intersected to form a cutting edge, the matrix of the plate-shaped cutter body at least comprises an inner matrix and an outer matrix from inside to outside, the inner matrix and the outer matrix are tightly connected, the inner matrix is arranged on the inner side of the outer matrix, and the inner matrix and the outer matrix are made of different materials.
Description
Technical Field
The invention mainly relates to the field of metal cutting machining, in particular to a cutting blade with different matrixes inside and outside.
Background
When the cutting insert is involved in cutting, cutting mainly occurs in a first cutting region where a cutting edge, which is formed by intersecting a rake face on an upper surface and a flank face on a side surface of the cutting insert, receives a main cutting force, and although the rate and degree of wear of the flank face 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 chipped or the rake face forms a wear groove.
At present, the impact resistance of a cutting blade is improved by adopting a high-strength base body in the industry, and the cutting service life of the cutting blade is greatly prolonged by matching with a high-wear-resistant and low-resistance coating, but the coating thickness of the cutting blade is smaller, and the coating can fall off or be quickly worn due to abnormal scraping of chips in the cutting process, so that the most effective method for prolonging the service life of the cutting blade is still realized by adopting the high-strength and high-wear-resistant base body, but the impact resistance and the wear resistance of the cutting blade are always difficult to be completely considered, therefore, the cutting blade with a plurality of different appearance structures and base body structures is 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 provide a cutting blade which can meet the requirements of different cutting working conditions, has high impact resistance, high wear resistance and good universality and is provided with different matrixes inside and outside.
In order to solve the technical problems, the invention adopts the following technical scheme:
a cutting insert having different basic bodies inside and outside, comprising a plate-shaped body including an upper surface, a lower surface, and side surfaces connecting the upper surface and the lower surface, the upper surface including a groove profile and a central surface, the side surfaces and the groove profile intersecting to form a cutting edge, the basic bodies of the plate-shaped body at least including an inner basic body and an outer basic body from inside to outside, the inner basic body and the outer basic body being closely connected and the inner basic body being disposed inside the outer basic body, the inner basic body and the outer basic body having different materials.
As a further improvement of the above technical solution:
the inner matrix and the outer matrix penetrate through the upper surface and the lower surface simultaneously.
The outer matrix penetrates through the upper surface and the lower surface simultaneously, and the inner matrix only penetrates through the lower surface.
The cobalt content of the inner matrix is omega 1, the cobalt content of the outer matrix is omega 2, and the following conditions are met: 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 inner matrix is larger than the powder particle size of the outer matrix.
The maximum inscribed circle diameter of the inner matrix is D, the maximum inscribed circle diameter of the outer matrix is D, and the following requirements are met: d is more than or equal to 0.4D and less than or equal to 0.8D.
The side surface comprises a main side surface, in the direction of the upper surface, the outer peripheral surface of the inner base body and the inner peripheral surface of the outer base body are both circular on any section of the side surface, an outer protrusion is arranged on the outer peripheral surface, an inner recess corresponding to the outer protrusion is arranged on the inner peripheral surface, and the outer protrusion and the inner recess extend along the direction of the upper surface.
The evagination includes outer protruding top surface and locates the evagination side of evagination top surface both sides, the interior indent is including interior indent bottom surface and locate the interior indent side of interior indent bottom surface both sides, and is same contained angle between two evagination sides of outer arch is alpha, and is same contained angle between two interior indent sides of interior indent is beta, should satisfy: alpha is more than or equal to 60 degrees and less than or equal to 100 degrees, beta is more than or equal to 60 degrees and less than or equal to 100 degrees.
The height between the inner concave bottom surface and the corresponding outer convex top surface is h, and the following requirements are met: h is more than or equal to 0.2mm and less than or equal to 1 mm.
The number of the outer bulges is N, and the following requirements are met: n is more than or equal to 2 and less than or equal to 6.
The side face comprises a main side face and an angle side face, the outer peripheral face of the inner base body and the inner peripheral face of the outer base body are both of a polygonal structure on any cross section of the side face in the upper surface direction, an outer concave is arranged on the outer peripheral face, an inner convex matched with the outer concave is arranged on the inner peripheral face, and the outer concave and the inner convex extend along the upper surface direction.
The outer concave comprises an outer concave bottom and outer concave side surfaces arranged on two sides of the outer concave bottom, the inner convex comprises an inner convex top surface and inner convex side surfaces arranged on two sides of the inner convex top surface, an included angle between two outer concave side surfaces of the same outer concave is alpha 1, an included angle between two inner convex side surfaces of the same inner convex is beta 1, and the requirements are met: alpha 1 is more than or equal to 60 degrees and less than or equal to 100 degrees, and beta 1 is more than or equal to 60 degrees and less than or equal to 100 degrees.
The side face comprises a main side face and an angle side face, in the upper surface direction, the area where the outer peripheral face of the inner base body is matched with the inner peripheral face of the outer base body is of a polygonal structure on any section in the side face direction, the outer peripheral face and the inner peripheral face are arranged in parallel with the cutting edge, an outer protrusion is arranged on the outer peripheral face, an inner recess corresponding to the outer protrusion is arranged on the inner peripheral face, and the outer protrusion and the inner recess are arranged corresponding to the angle side face.
The minimum distance between the inner matrix and the upper surface is H, the height of the inner matrix is H', and the following conditions are met: h is more than or equal to 0.5mm and less than or equal to 0.3H'.
The cutting insert having different basic bodies inside and outside further comprises a central bore, which is provided in the inner basic body.
The cutting insert having different basic bodies inside and outside further includes a center hole penetrating both the inner basic body and the outer basic body.
Compared with the prior art, the invention has the advantages that:
the cutting blade of the invention has different basal bodies inside and outside, the basal body of the plate-shaped cutter body at least comprises an inner basal body and an outer basal body from inside to outside, the inner basal body and the outer basal body are closely connected, the inner basal body is arranged at the inner side of the outer basal body, the inner basal body and the outer basal body are made of different materials, so that the cutting blade has good impact resistance and wear resistance, for example, the outer basal body is composed of hard alloy with high hardness and fine granularity, the inner basal body is composed of hard alloy with high toughness and coarse granularity, the strong impact resistance of the inner basal body ensures that the outer basal body provided with the cutting edge has good vibration resistance and impact resistance while having high wear resistance in the cutting process, the service life of the cutting blade is greatly prolonged, meanwhile, the universality of the cutting blade is improved, the technical problem that the hardness and the toughness of the cutting blade are difficult to be considered is solved, and the processing requirements of various working conditions are met, the use cost of the cutting insert is reduced.
Drawings
FIG. 1 is a perspective view of a first embodiment of a cutting insert of the present invention having different basic bodies inside and outside;
FIG. 2 is a front view of a first embodiment of a cutting insert of the present invention having different bases on the inside and outside thereof;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is a perspective view of a second embodiment of a cutting insert of the present invention having different bases on the inside and outside thereof;
FIG. 5 is a front view of a second embodiment of a cutting insert of the present invention having different bases on the inside and outside thereof;
FIG. 6 is a view B-B of FIG. 5;
FIG. 7 is a rear view of a second embodiment of a cutting insert of the present invention having different bases on the inside and outside thereof;
FIG. 8 is a perspective view of a third embodiment of a cutting insert of the present invention having different bases on the inside and outside thereof;
FIG. 9 is a front view of a third embodiment of a cutting insert of the present invention having different bases on the inside and outside thereof;
FIG. 10 is a rear view of a third embodiment of a cutting insert of the present invention having different bases on the inside and outside thereof;
fig. 11 is a view C-C of fig. 9.
The reference numerals in the figures denote:
1. a plate-shaped cutter body; 2. an upper surface; 21. a groove profile; 22. a central plane; 3. a lower surface; 4. a side surface; 41. a major side; 42. a corner side; 5. a cutting edge; 6. a substrate; 61. an inner matrix; 611. an outer peripheral surface; 612. an outer recess; 6121. an outer recessed bottom surface; 6122. an outer concave side; 613. an outer protrusion; 6131. an outer convex top surface; 6132. an outer convex side surface; 62. an outer substrate; 621. an inner peripheral surface; 622. an inner bulge; 6221. an inner convex top surface; 6222. an inner convex side; 623. an inner recess; 6231. is recessed into the bottom surface; 6232. inward concave into the side; 7. a central bore.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Fig. 1 to 3 show a first embodiment of a cutting insert according to the invention having different basic bodies inside and outside, which cutting insert comprises a plate-shaped body 1, which plate-shaped body 1 comprises an upper surface 2, a lower surface 3 and side surfaces 4 connecting the upper surface 2 with the lower surface 3, which upper surface 2 comprises a groove profile 21 and a central surface 22, which side surfaces 4 and groove profile 21 intersect to form a cutting edge 5, which body 6 of the plate-shaped body 1 comprises at least an inner body 61 and an outer body 62 from the inside to the outside, which inner body 61 and outer body 62 are closely connected and the inner body 61 is arranged inside the outer body 62, which inner body 61 and outer body 62 are of different materials, which makes it possible to provide the cutting insert with good impact resistance and wear resistance at the same time, for example, the outer body 62 is composed of a hard alloy having a high hardness and a fine grain size and the inner body 61 is composed of a hard alloy having a high toughness and a coarse grain size, the outer base body 62 provided with the cutting edge is guaranteed to have high wear resistance and good vibration and impact resistance by the strong impact resistance of the inner base body 61 in the cutting process, the service life of the cutting blade is greatly prolonged, meanwhile, the universality of the cutting blade is improved, the technical problem that the hardness and the toughness of the cutting blade are difficult to take into consideration is solved, the processing requirements of various working conditions are met, and the use cost of the cutting blade is reduced.
In the present embodiment, the inner base 61 and the outer base 62 both penetrate the upper surface 2 and the lower surface 3 simultaneously, that is, the inner base 61 extends to the upper surface 2 and the lower surface 3 simultaneously, the outer base 62 also extends to the upper surface 2 and the lower surface 3 simultaneously, the central regions of the cutting inserts having different bases inside and outside are all the inner base 61, and the outer base 62 is disposed at the periphery of the inner base 61.
The cobalt content of the inner matrix 61 is ω 1, the cobalt content of the outer matrix 62 is ω 2, and in order to ensure the cutting wear resistance and impact resistance of the cutting insert, the following requirements should be satisfied: 0 ≦ ω 1 — ω 2 ≦ 5%, in this example, ω 1 ═ 10%, and ω 2 ≦ 8%.
In this embodiment, the powder particle size of the inner matrix 61 is larger than that of the outer matrix 62, the powder particle size refers to the size of the powder particles in the matrix, and the particle size refers to the larger size of the powder particles.
The biggest inscribe circle diameter of interior base member 61 is D, and the biggest inscribe circle diameter of outer base member 62 is D, for guaranteeing the bulk strength of the outer base member 62 of blade, should satisfy: d is not less than 0.4D and not more than 0.8D, and in the embodiment, D is 0.75D.
In this embodiment, the side surface 4 includes a main side surface 41, in the direction of the upper surface 2, the outer circumferential surface 611 of the inner base 61 and the inner circumferential surface 621 of the outer base 62 are both circular in any cross section in the direction of the side surface 4, the outer circumferential surface 611 is provided with an outer protrusion 613, the inner circumferential surface 621 is provided with an inner recess 623 corresponding to the outer protrusion 613, the outer protrusion 613 and the inner recess 623 both extend along the direction of the upper surface 2, and the outer protrusion 613 and the inner protrusion 622 cooperate to realize the connection between the inner base 61 and the outer base 62.
In this embodiment, the outer protrusion 613 includes an outer protrusion top surface 6131 and outer protrusion side surfaces 6132 disposed on two sides of the outer protrusion top surface 6131, the inner recess 623 includes an inner recess bottom surface 6231 and inner recess side surfaces 6132 disposed on two sides of the inner recess bottom surface 6231, an included angle between the two outer protrusion side surfaces 6132 of the same outer protrusion 613 is α, an included angle between the two inner recess side surfaces 6132 of the same inner recess 623 is β, a height between the outer protrusion top surface 6131 and the corresponding inner recess bottom surface 6231 is h, and the connection strength between the inner base 61 and the outer base 62 and the molding of the blade should be satisfied: alpha is more than or equal to 60 degrees and less than or equal to 100 degrees, beta is more than or equal to 60 degrees and less than or equal to 100 degrees, h is more than or equal to 0.2mm and less than or equal to 1mm, in the embodiment, alpha is more than or equal to 80 degrees, and h is more than or equal to 0.4 mm.
The number of the outer protrusions 613 is N, and in order to ensure the connection strength between the inner substrate 61 and the outer substrate 62 and facilitate the formation of the blade, it should be satisfied that: n is more than or equal to 2 and less than or equal to 6, and in the embodiment, N is 4 and is uniformly distributed.
In this embodiment, the cutting insert with different basic bodies inside and outside also comprises a central hole 7, which central hole 7 opens in the inner basic body 61.
Fig. 4 to 7 show a second embodiment of a cutting insert according to the invention having a different basic body inside and outside, which is essentially identical to the first embodiment, except that: in this embodiment, the side surface 4 includes a main side surface 41 and an angular side surface 42, in the direction of the upper surface 2, the outer circumferential surface 611 of the inner base 61 and the inner circumferential surface 621 of the outer base 62 are both polygonal in any cross section in the direction of the side surface 4, the outer circumferential surface 611 is provided with an outer recess 612, the inner circumferential surface 62 is provided with an inner protrusion 622 corresponding to the outer recess 612, both the outer recess 612 and the inner protrusion 622 extend along the direction of the upper surface 2, and in this embodiment, both the outer recess 612 and the inner protrusion 622 are disposed on a region corresponding to the main side surface 41.
The outer concave recess 612 comprises an outer concave recess bottom surface 6121 and outer concave recess side surfaces 6122 arranged on two sides of the outer concave recess bottom surface 6121, the inner protrusion 622 comprises an inner protrusion top surface 6221 and inner protrusion side surfaces 6222 arranged on two sides of the inner protrusion top surface 6221, an included angle between the two outer concave recess side surfaces 6122 of the same outer concave recess 612 is alpha 1, an included angle between the two inner protrusion side surfaces 6222 of the same inner protrusion 622 is beta 1, and in order to guarantee the connection strength between the inner base body 61 and the outer base body 62 and facilitate the forming of blades, the requirements are met: α 1 is 60 ° or more and 100 ° or less, β 1 is 60 ° or more and 100 ° or less, and in this embodiment, α 1 is 70 ° or more.
Fig. 8 to 11 show a third embodiment of a cutting insert according to the invention having different basic bodies inside and outside, which is substantially identical to the first embodiment, except that: in this embodiment, the outer base 62 penetrates through both the upper surface 2 and the lower surface 3, the inner base 61 penetrates through only the lower surface 3, that is, the outer base 62 extends to both the upper surface 2 and the lower surface 3, but the inner base 61 extends into the child lower surface 3, the upper surface 2 is completely formed by the outer base 62, the side surface 4 includes a major side surface 41 and an angular side surface 42, a region where the outer peripheral surface 611 of the inner base 61 and the inner peripheral surface 621 of the outer base 62 are matched in the direction of the upper surface 2 is polygonal in any cross section in the direction of the side surface 4, both the outer peripheral surface 611 and the inner peripheral surface 62 are arranged in parallel with the cutting edge 5, and the outer protrusion 613 is arranged corresponding to the angular side surface 42 of the inner recess 623.
The minimum distance between the inner substrate 61 and the upper surface 2 is H, the height of the inner substrate 61 is H', and in order to ensure the cutting performance of the outer substrate 62 on the upper surface 2, the following requirements should be satisfied: h is not less than 0.5mm and not more than 0.3H ', in the embodiment, H is 0.6mm, and H' is 2 mm.
In this embodiment, the cutting insert with different basic bodies inside and outside also comprises a central hole 7, which central hole 7 extends through both said inner basic body 61 and said outer basic body 62.
In the above embodiments, the basic body 6 of the cutting insert 1 is composed of the inner basic body 61 and the outer basic body 62 from the inside to the outside, but the present invention is not limited thereto, and the insert may be designed to have three or more basic body compositions depending on the size of the insert and the performance requirements.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (16)
1. A cutting insert with different basic bodies inside and outside, comprising a plate-shaped body (1), said plate-shaped body (1) comprising an upper surface (2), a lower surface (3) and side surfaces (4) connecting said upper surface (2) and said lower surface (3), said upper surface (2) comprising a groove profile (21) and a centre surface (22), said side surfaces (4) and groove profile (21) intersecting to form cutting edges (5), characterized in that: the base body (6) of the plate-shaped cutter body (1) at least comprises an inner base body (61) and an outer base body (62) from inside to outside, the inner base body (61) and the outer base body (62) are tightly connected, the inner base body (61) is arranged on the inner side of the outer base body (62), and the inner base body (61) and the outer base body (62) are made of different materials.
2. The cutting insert as set forth in claim 1 having different basic bodies inside and outside, wherein: the inner matrix (61) and the outer matrix (62) both penetrate through the upper surface (2) and the lower surface (3) simultaneously.
3. The cutting insert as set forth in claim 1 having different basic bodies inside and outside, wherein: the outer matrix (62) penetrates both the upper surface (2) and the lower surface (3), and the inner matrix (61) penetrates only the lower surface (3).
4. A cutting insert according to any one of claims 1 to 3 having different basic bodies inside and outside, characterized in that: the cobalt content of the inner matrix (61) is omega 1, the cobalt content of the outer matrix (62) is omega 2, and the following conditions are met: omega 1-omega 2 is more than or equal to 0 and less than or equal to 5 percent.
5. The cutting insert as set forth in claim 4, wherein: the powder particle size of the inner matrix (61) is larger than the powder particle size of the outer matrix (62).
6. The cutting insert as set forth in claim 4, wherein: the maximum inscribed circle diameter of the inner matrix (61) is D, the maximum inscribed circle diameter of the outer matrix (62) is D, and the following requirements are met: d is more than or equal to 0.4D and less than or equal to 0.8D.
7. A cutting insert according to any one of claims 1 to 3 having different basic bodies inside and outside, characterized in that: the side surface (4) comprises a main side surface (41), in the direction of the upper surface (2), the outer circumferential surface (611) of the inner base body (61) and the inner circumferential surface (621) of the outer base body (62) are both circular on any cross section in the direction of the side surface (4), an outer protrusion (613) is arranged on the outer circumferential surface (611), an inner recess (623) corresponding to the outer protrusion (613) is arranged on the inner circumferential surface (621), and the outer protrusion (613) and the inner recess (623) both extend along the direction of the upper surface (2).
8. The cutting insert as set forth in claim 7, wherein: the outer protrusion (613) comprises an outer protrusion top surface (6131) and outer protrusion side surfaces (6132) arranged on two sides of the outer protrusion top surface (6131), the inner recess (623) comprises an inner recess bottom surface (6231) and inner recess side surfaces (6132) arranged on two sides of the inner recess bottom surface (6231), an included angle between two outer protrusion side surfaces (6132) of the same outer protrusion (613) is alpha, and an included angle between two inner recess side surfaces (6132) of the same inner recess (623) is beta, so that the requirements are met: alpha is more than or equal to 60 degrees and less than or equal to 100 degrees, beta is more than or equal to 60 degrees and less than or equal to 100 degrees.
9. The cutting insert as set forth in claim 8, wherein: the height between the outer convex top surface (6131) and the corresponding inner concave bottom surface (6231) is h, and the following requirements are met: h is more than or equal to 0.2mm and less than or equal to 1 mm.
10. The cutting insert as set forth in claim 7, wherein: the number of the outer protrusions (613) is N, and the following conditions are satisfied: n is more than or equal to 2 and less than or equal to 6.
11. The cutting insert with distinct basic bodies inside and outside according to claim 1 or 2, wherein: the side surface (4) comprises a main side surface (41) and an angle side surface (42), in the direction of the upper surface (2), the outer peripheral surface (611) of the inner base body (61) and the inner peripheral surface (621) of the outer base body (62) are both polygonal structures on any section of the side surface (4) direction, an outer recess (612) is arranged on the outer peripheral surface (611), an inner protrusion (622) matched with the outer recess (612) is arranged on the inner peripheral surface (62), and the outer recess (612) and the inner protrusion (622) both extend along the direction of the upper surface (2).
12. The cutting insert as set forth in claim 11, wherein: the outer recess (612) comprises an outer recess bottom surface (6121) and outer recess side surfaces (6122) arranged on two sides of the outer recess bottom surface (6121), the inner protrusion (622) comprises an inner protrusion top surface (6221) and inner protrusion side surfaces (6222) arranged on two sides of the inner protrusion top surface (6221), an included angle between the two outer recess side surfaces (6122) of the same outer recess (612) is alpha 1, an included angle between the two inner protrusion side surfaces (6222) of the same inner protrusion (622) is beta 1, and the requirements are met: alpha 1 is more than or equal to 60 degrees and less than or equal to 100 degrees, and beta 1 is more than or equal to 60 degrees and less than or equal to 100 degrees.
13. A cutting insert according to claim 3 having different basic bodies inside and outside, wherein: the side surface (4) comprises a main side surface (41) and an angle side surface (42), in the direction of the upper surface (2), the matching area of the outer peripheral surface (611) of the inner base body (61) and the inner peripheral surface (621) of the outer base body (62) is a polygonal structure on any cross section in the direction of the side surface (4), the outer peripheral surface (611) and the inner peripheral surface (62) are both arranged in parallel with the cutting edge (5), the outer peripheral surface (611) is provided with an outer protrusion (613), the inner peripheral surface (62) is provided with an inner recess (623) corresponding to the outer protrusion (613), and the outer protrusion (613) and the inner recess (623) are arranged corresponding to the angle side surface (42).
14. The cutting insert as set forth in claim 13, wherein the cutting insert has a different basic body between the inside and the outside thereof, and wherein: the method is characterized in that: the minimum distance between the inner matrix (61) and the upper surface (2) is H, the height of the inner matrix (61) is H', and the following conditions are met: h is more than or equal to 0.5mm and less than or equal to 0.3H'.
15. The cutting insert of claim 2 having different basic bodies inside and outside, wherein: the cutting insert with different basic bodies inside and outside further comprises a centre hole (7), which centre hole (7) opens in the inner basic body (61).
16. The cutting insert of claim 2 having different basic bodies inside and outside, wherein: the cutting insert with different basic bodies inside and outside further comprises a central hole (7), the central hole (7) penetrating both the inner basic body (61) and the outer basic body (62).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111680364.5A CN114378321A (en) | 2021-12-30 | 2021-12-30 | Cutting insert with different internal and external substrates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111680364.5A CN114378321A (en) | 2021-12-30 | 2021-12-30 | Cutting insert with different internal and external substrates |
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| CN114378321A true CN114378321A (en) | 2022-04-22 |
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| CN202111680364.5A Pending CN114378321A (en) | 2021-12-30 | 2021-12-30 | Cutting insert with different internal and external substrates |
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| CN104148686A (en) * | 2014-08-01 | 2014-11-19 | 河南富耐克超硬材料股份有限公司 | Ultrahard material clad sheet and substrate thereof |
| JP2016221673A (en) * | 2015-05-28 | 2016-12-28 | 三菱マテリアル株式会社 | Cutting tool comprising composite sintered compact |
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| WO2021240995A1 (en) * | 2020-05-26 | 2021-12-02 | 住友電気工業株式会社 | Base material and cutting tool |
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