CN104148686B - Ultrahard material clad sheet and substrate thereof - Google Patents
Ultrahard material clad sheet and substrate thereof Download PDFInfo
- Publication number
- CN104148686B CN104148686B CN201410376008.8A CN201410376008A CN104148686B CN 104148686 B CN104148686 B CN 104148686B CN 201410376008 A CN201410376008 A CN 201410376008A CN 104148686 B CN104148686 B CN 104148686B
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- matrix
- faying face
- material layer
- hard material
- ultra hard
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Classifications
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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
- B23B27/1662—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 clamped against the walls of the recess in the shank by a clamping member acting 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
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
Abstract
The invention relates to an ultrahard material clad sheet and a substrate thereof. The ultrahard material clad sheet comprises the substrate and an ultrahard material layer; each side surface of the substrate is provided with a junction surface which is fixedly combined with the ultrahard material layer; each junction surface is provided with a projection structure and/or a recess structure; the ultrahard material layer is fixedly combined to the substrate through the junction surfaces on the side surfaces of the substrate; portions, which are combined to the junction surfaces, of the ultrahard material layer are connected to one another; the junction area between the substrate and the ultrahard material layer can be large with the aid of the side surfaces of the substrate and the projection structures and/or the recess structures on the side surfaces of the substrate; the portions, which are combined to the junction surfaces, of the ultrahard material layer are connected to one another, the portion, which is positioned on a certain side surface, of the ultrahard material layer can be firmly combined with the substrate with the aid of the adjacent portion of the ultrahard material layer and can bear high stress, so that the junction surfaces between the substrate and the ultrahard material layer can be effectively prevented from cracking, and the substrate and the ultrahard material layer can be firmly combined with each other.
Description
Technical field
The present invention relates to Superhard composite materials and its matrix.
Background technology
Superhard material have very high intensity and good anti-wear performance, such as polycrystalline diamond, cubic boron nitride or
Ceramics etc., are often applied to the occasions such as drilling tool, blade.Overall polycrystalline diamond blade, overall cubic boron nitride blade and ceramics
Blade work region only has cutting edge position, and support is only played a part of at blade other positions in addition to cutting edge in working angles, but
It is that polycrystalline diamond, cubic boron nitride material and ceramic material do backing material and there is certain defect, its high cost, matter is crisp,
Fluting or perforate are difficult, so overall polycrystalline diamond, cubic boron nitride blade and ceramic tip are typically not provided with blade positioning
Hole.Also, because cutter will lose value after the cutting edge abrasion of these integral knife blades, thus can waste many diamond or
The raw materials such as cubic boron nitride, do not meet the development trend of environment protecting and power-saving.
Superhard composite materials are typically by polycrystalline diamond, cubic boron nitride or ceramic material and hard alloy in high temperature
Sintering is formed under condition of high voltage, polycrystalline diamond, cubic boron nitride or ceramic material as working lining, hard alloy as
Support body, the composite sheet that the two is composited can have polycrystalline diamond, cubic boron nitride or ceramic material high rigidity, high resistance to concurrently
Mill characteristic and hard alloy high intensity, toughness the features such as, can as composite blade be widely used in hardened material and
The machining of difficult-to-machine material, such as hardened steel, high-alloy wear-resisting casting iron, high temperature alloy, high-speed steel, surface spraying weld material, burning
The machining of the difficult-to-machine materials such as knot metal material.But, polycrystalline diamond, cubic boron nitride or ceramic material and hard
In sintering process, because the coefficient of expansion is different between bi-material, degree of wetting is not high, and two kinds of early stage for alloy composite blade
The faying face of storeroom is planar structure, therefore undesirable with reference to effect, and cracking is easily produced at faying face.Application No.
201120224121.6, Authorization Notice No. for the U of CN 202181849 Chinese patent disclose a kind of diamond hard alloy answer
Piece is closed, including matrix made by hard alloy and the polycrystalline diamond of hard alloy substrate upper surface is sintered in by high pressure-temperature
Layer, described hard alloy substrate upper surface is provided with the protrusion element for being uniformly distributed and staggering in front and back, makes around each protrusion element
Groove be spaced apart and be interconnected, the protrusion element can be tetragonous cone table, the frustum of a cone, cuboid, cylinder or positive six
The frustum of a pyramid, so as to improve the bond strength of hard alloy substrate and polycrystalline diamond layer to a certain extent, reduces stress,
Improve impact resistance.But, because the coefficient of expansion is different between bi-material, the not high problem of degree of wetting is yet suffered from, above-mentioned
The bond strength and shock resistance of composite sheet is still extremely limited, and the problem that faying face ftractures still occurs.
The content of the invention
It is an object of the invention to provide a kind of can effectively prevent what the faying face between matrix and superhard material ftractureed
Superhard composite materials, meanwhile, present invention also offers a kind of matrix of Superhard composite materials.
The technical scheme of Superhard composite materials employing is in the present invention：Superhard composite materials, including matrix and superhard
Material layer, each side of described matrix is respectively provided with the faying face for being combined fixation with the ultra hard material layer, the combination
Face is the faying face for being provided with bulge-structure and/or sunk structure, on each side that the ultra hard material layer passes through described matrix
Faying face combine and be fixed on matrix, the ultra hard material layer combines part on each faying face and is connected with each other.
The faying face is the evagination faying face towards outer lug, between the evagination faying face on each side of described matrix
It is connected smoothly.
The height of projection of the evagination faying face is less than the radius of corresponding matrix corresponding side surface or less than corresponding matrix correspondence
The half of the length of side of side.
The whole outer surface of described matrix is faying face, and described matrix is covered by completely in the ultra hard material layer.
Described matrix is provided with the blade positioning hole of insertion respective side, in described matrix in addition to the aperture in blade positioning hole
Surface be faying face.
The technical scheme of the matrix employing of Superhard composite materials is in the present invention：The matrix of Superhard composite materials, bag
The faying face for being combined fixation with ultra hard material layer is included, each side of described matrix is respectively provided with the faying face, the knot
Conjunction face is that the seamed edge of the faying face for being provided with bulge-structure and/or sunk structure, the bulge-structure or sunk structure is provided with chamfering.
The faying face is the evagination faying face towards outer lug, between the evagination faying face on each side of described matrix
It is connected smoothly.
The height of projection of the evagination faying face is less than the radius of corresponding matrix corresponding side surface or less than corresponding matrix correspondence
The half of the length of side of side.
The whole outer surface of described matrix is faying face, and described matrix is covered by completely in the ultra hard material layer.
The radial dimension of the bulge-structure or sunk structure is no more than 10mm, adjacent protrusion structure and/or depression knot
Spacing between structure is also not more than 10mm.
The present invention adopts above-mentioned technical proposal, each side of the matrix of Superhard composite materials be respectively provided with for it is described
Ultra hard material layer combines fixed faying face, and the faying face is the faying face for being provided with bulge-structure and/or sunk structure, described
The faying face on each side that ultra hard material layer passes through described matrix is combined and is fixed on matrix, and the ultra hard material layer is combined
Part on each faying face is connected with each other, therefore, compared with prior art, can be according between matrix and ultra hard material layer
There is bigger bonded area by the bulge-structure and/or sunk structure on each side and each side of matrix, and surpass
Hard material layer combines the part on each faying face and is connected with each other the ultra hard material layer that can be enable at certain one side
It is enough more firmly to be combined with matrix by the ultra hard material layer being adjacent, bigger stress is born, so as to effectively prevent base
Faying face cracking between body and superhard material, forms firm combination.In addition, in the bulge-structure or sunk structure of matrix
Seamed edge is provided with chamfering and can avoid the occurrence of dead angle, so as to effectively reduce the stress concentration caused because of structural mutation, plays more preferably
Crack resistence effect.
Description of the drawings
Fig. 1 is the sectional view of the embodiment one of Superhard composite materials in the present invention；
Fig. 2 is A-A sectional views of Fig. 1；
Fig. 3 is the profile and schematic shapes of sunk structure in the upper and lower surface of matrix in Fig. 1；It is also simultaneously this
The structural representation of the embodiment one of the matrix of Superhard composite materials in invention；
Fig. 4 is the A '-A ' sectional views of Fig. 3；
Fig. 5 is the sectional view of the embodiment two of the matrix of Superhard composite materials in the present invention, while being also in the present invention
The sectional view of the matrix in the embodiment two of Superhard composite materials；
Fig. 6 is B-B sectional views of Fig. 5；
Fig. 7 is the profile enlarged diagram of bulge-structure on the faying face of matrix in Fig. 5；
Fig. 8 is the sectional view of the embodiment three of the matrix of Superhard composite materials in the present invention, while being also in the present invention
The sectional view of the matrix in the embodiment three of Superhard composite materials；
Fig. 9 is C-C sectional views of Fig. 8；
Figure 10 is the profile enlarged diagram of bulge-structure and sunk structure on the faying face of matrix in Fig. 8；
Figure 11 is the sectional view of the example IV of the matrix of Superhard composite materials in the present invention, while being also in the present invention
The sectional view of the matrix in the example IV of Superhard composite materials；
Figure 12 is D-D sectional views of Figure 11；
Figure 13 is the profile enlarged diagram of bulge-structure on the faying face of matrix in Figure 11；
Figure 14 is the sectional view of the embodiment five of Superhard composite materials in the present invention（The bulge-structure of matrix surface and recessed
Sunken structure is not shown）；
Figure 15 is E-E sectional views of Figure 14.
Each reference is corresponding entitled in figure：1 matrix, 11 bulge-structures, 12 sunk structures, 13 blade positioning holes, 2
Ultra hard material layer.
Specific embodiment
The embodiment of Superhard composite materials is just like shown in Fig. 1 ~ Fig. 4, being for the super of field of machining in the present invention
Hard material composite blade, it is circular circular shear blade that the superhard material composite blade is cross section, by ultra hard material layer 2 and hard
The two parts of matrix 1 composition made by alloy, matrix 1 is arranged on the center of ultra hard material layer 2, forms cored structure.Matrix 1
Shape be close to cylindric, with above, three sides of lower surface and periphery, upper surface, lower surface and periphery be to
Outer raised evagination faying face in the arc-shaped, is connected smoothly between three；Evagination faying face on periphery is in matrix 1
Intermediate sizes on axial direction are more than both sides size.The recessed of irregular alignment is equipped with the upper and lower surface of matrix 1
Sunken structure 12, including two ring-shaped depressions that are coaxially disposed of circle and eight radial indentations being disposed radially, radial indentations
Width is outwards gradually increased by the center of circle, and in the upper and lower surface of matrix 1 surface area region not of uniform size is isolated, close
The region surface product in the center of circle is little, big away from the surface area in the center of circle, ensure that the good combination of matrix 1 and ultra hard material layer 2；Base
The periphery of body 1 is provided with the sunk structure 12 for being shaped as truncated cone.During manufacture, it is used to form ultra hard material layer by control
The consumption of 2 superhard material powder, enables the ultra hard material layer 2 that sintering is formed that matrix 1 is coated completely, and by setting
The evagination faying face for having sunk structure 12 is combined fixation with matrix 1.
The embodiment two of Superhard composite materials exists as shown in Fig. 5 ~ Fig. 7 with the difference of embodiment one in the present invention
In：In the present embodiment, superhard material composite blade is the diamond shaped insert that cross section is rhombus, and matrix 1 has upper surface, lower surface
With six sides such as four lateral surface, six sides be it is outwards in the arc-shaped raised and be connected smoothly each other it is outer
Convex faying face.The bulge-structure 11 of frustum of a pyramid shape is equipped with six sides of matrix 1, pyramid bus is less than with baseline angle
90 °, and small end is outwardly.During manufacture, it is used to form the consumption of the superhard material powder of ultra hard material layer 2 by control, makes sintering
The ultra hard material layer 2 of formation completely can get up the cladding of matrix 1, and by being provided with the evagination faying face and base of bulge-structure 11
Body 1 is combined to be fixed.
The embodiment three of Superhard composite materials such as Fig. 8 ~ Figure 10 shows in the present invention, exists with the difference of embodiment one
In：In the present embodiment, it is square square blade that superhard material composite blade is cross section, and matrix 1 has upper surface, lower surface
With six sides such as four lateral surface, six sides be it is outwards in the arc-shaped raised and be connected smoothly each other it is outer
Convex faying face.The sunk structure 12 and bulge-structure 11 of square column shape are equipped with six sides of matrix 1.During manufacture, pass through
The consumption for forming the superhard material powder of ultra hard material layer 2 is controlled, the handle completely of ultra hard material layer 2 for enabling sintering to be formed
The cladding of matrix 1 is got up, and is combined fixation with matrix 1 by being provided with the evagination faying face of sunk structure 12 and bulge-structure 11.
Difference of the example IV of Superhard composite materials as shown in Figure 11 ~ Figure 13, with embodiment one in the present invention
It is：In the present embodiment, superhard material composite blade be cross section be triangle triangular blade, matrix 1 have upper surface,
Five sides such as lower surface and three lateral surface, five sides are the outwards in the arc-shaped raised and company of seamlessly transitting each other
The evagination faying face for connecing.The bulge-structure 11 of truncated cone shape is equipped with five sides of matrix 1, element of cone is pressed from both sides with baseline
Angle is less than 90 °, and small end is outwardly.During manufacture, it is used to form the consumption of the superhard material powder of ultra hard material layer 2 by control,
Enable the ultra hard material layer 2 that sintering is formed that matrix 1 is coated completely, and combined by being provided with the evagination of bulge-structure 11
Face is combined fixation with matrix 1.
The embodiment five of Superhard composite materials is as shown in Figure 14 ~ Figure 15 in the present invention（The bulge-structure on the surface of matrix 1 and
Sunk structure is not shown）, it is with the difference of embodiment three：In the present embodiment, Finished blades are provided with insertion upper surface
With the blade positioning hole 13 of lower surface, during manufacture, it is used to form the use of the superhard material powder of ultra hard material layer 2 by control
Amount, makes the surface on matrix 1 in addition to the part corresponding with the aperture in blade positioning hole 13 be covered by described superhard
In material layer 2.So, after ultra hard material layer 2 is attached on matrix 1, can hold very much next hard alloy core is exposed
Change places and open up blade positioning hole 13, the difficulty that overall superhard material blade is present in material and prior art is solved well and is added
The drawbacks of work hole, Set and Positioning when being easy to use.
Ultra hard material layer 2 in the various embodiments described above can be polycrystalline cubic boron nitride body, diamond polycrystal and pottery
Any one in ceramic material.And the faying face of the matrix 1 for being used to form core in the various embodiments described above is outwardly convex
Arc surface, can be reduced and the stress between superhard material in high pressure-temperature building-up process, improve the toughness of composite sheet, while
Bonded area can also be increased.In addition, faying face is to be provided with equidistant equally distributed bulge-structure 11 in the various embodiments described above
Or the faying face of sunk structure 12, can equally play a part of to increase bonded area, improve adhesion, and in bulge-structure
11 or the seamed edge of sunk structure 12 be provided with chamfering, it is to avoid there is dead angle, can effectively reduce the stress caused because of structural mutation
Concentrate.In order to preferably avoid the caused crackle due to residual stress concentrations, bulge-structure 11 in the various embodiments described above or
, no more than 10mm, the spacing between adjacent protrusion structure 11 and/or sunk structure 12 is not yet for the radial dimension of sunk structure 12
More than 10mm, in design process, can be reduced convex with increase bulge-structure 11 as much as possible and/or the quantity of sunk structure 12
The size of structure 11 and/or sunk structure 12 is played, realizes increasing specific surface area, improve the effect of actual bond strength；And it is raised
The spread pattern of structure 11 or sunk structure 12 can be regularly arranged form, it would however also be possible to employ irregular spread pattern.Also,
The height of projection of evagination faying face can keep away less than the half of the length of side of the radius or the corresponding side surface of matrix 1 of the corresponding side surface of matrix 1
Exempt to produce stress concentration when High Temperature High Pressure synthesizes.
When manufacturing above-mentioned Superhard composite materials, first in each side for the matrix 1 for being used to manufacture Superhard composite materials
Process the above-mentioned faying face for being combined fixation with ultra hard material layer 2 on face respectively, then will be used to form ultra hard material layer 2
Superhard material powder be looped around outside matrix 1, in being placed into corresponding mould, and make superhard material powder with each combination
The corresponding part in face is connected with each other；Finally, the superhard material powder having surround and matrix 1 are sintered jointly, in the outside shape of matrix 1
Into the ultra hard material layer 2 for being combined fixation by faying face with matrix 1, Superhard composite materials are obtained.By controlling superhard material
The consumption of powder, can be such that matrix 1 is covered by completely in the ultra hard material layer 2, form such as one-example IV of embodiment
In composite blade；Or make the surface on matrix 1 in addition to the aperture in blade positioning hole 13 be covered by the superhard material
In layer 2, formed such as the composite blade in embodiment five.
The embodiment of the matrix of Superhard composite materials is the matrix in the various embodiments described above in the present invention, concrete structure this
Place repeats no more.
In the above-described embodiments, the faying face on each side of matrix 1 is outwards raised evagination in the arc-shaped and combines
Face, and faying face is provided with bulge-structure 11 or sunk structure 12.In other embodiments of the invention, each side of matrix 1
Faying face on face can also be the faying face of plane or other forms, for example waveform faying face, and faying face convex
The shape for rising can also be other shapes, such as into angular raised, non-circular arc arc convex etc..In addition, the projection on faying face
Structure 11 and/or sunk structure 12 can also save or be arranged as required to into other shapes, such as hemispherical, regular pentagon rib
Post shapes, regular hexagon prism shape etc., and in other embodiments, the shape of Superhard composite materials can also be ISO marks
Other shapes, or nonstandard blade type in standard.Furthermore, in other embodiments, superhard material corresponding with each side of matrix 1
The bed of material 2 can also partly link together, and without the transition position of each side of matrix 1 is coated completely.
Claims (8)
1. Superhard composite materials, including matrix and ultra hard material layer, it is characterised in that：Each side of described matrix is respectively provided with
For being combined the faying face of fixation with the ultra hard material layer, the faying face is to be provided with bulge-structure and/or sunk structure
Faying face, the faying face on each side that the ultra hard material layer passes through described matrix is combined and is fixed on matrix, described super
The part that hard material layer is combined on each faying face is connected with each other so that the ultra hard material layer at certain one side can
More firmly combined with matrix by its adjacent ultra hard material layer, the faying face is the evagination faying face towards outer lug, institute
State and be connected smoothly between the evagination faying face on each side of matrix.
2. Superhard composite materials according to claim 1, it is characterised in that：The height of projection of the evagination faying face is little
The half of the length of side in the radius of corresponding matrix corresponding side surface or less than corresponding matrix corresponding side surface.
3. Superhard composite materials according to claim 1 and 2, it is characterised in that：The whole outer surface of described matrix is equal
For faying face, described matrix is covered by completely in the ultra hard material layer.
4. Superhard composite materials according to claim 1 and 2, it is characterised in that：It is corresponding that described matrix is provided with insertion
The blade positioning hole of side, the surface in described matrix in addition to the aperture in blade positioning hole is faying face.
5. the matrix of Superhard composite materials, including for being combined the faying face of fixation with ultra hard material layer, it is characterised in that：Institute
Each side for stating matrix is respectively provided with the faying face for making ultra hard material layer combine the part phase on each faying face
Connect so that the ultra hard material layer at certain one side can by its adjacent ultra hard material layer more firmly with matrix
With reference to the faying face is the rib of the faying face for being provided with bulge-structure and/or sunk structure, the bulge-structure or sunk structure
While be provided with chamfering, the faying face is the evagination faying face towards outer lug, the evagination faying face on each side of described matrix
Between be connected smoothly.
6. the matrix of Superhard composite materials according to claim 5, it is characterised in that：The projection of the evagination faying face
Highly less than the radius or the half of the length of side less than corresponding matrix corresponding side surface of corresponding matrix corresponding side surface.
7. the matrix of the Superhard composite materials according to claim 5 or 6, it is characterised in that：Described matrix it is whole outer
Surface is faying face, and described matrix is covered by completely in the ultra hard material layer.
8. the matrix of the Superhard composite materials according to claim 5 or 6, it is characterised in that：The bulge-structure is recessed
No more than 10mm, the spacing between adjacent protrusion structure and/or sunk structure is also not more than 10mm to the radial dimension of sunken structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376008.8A CN104148686B (en) | 2014-08-01 | 2014-08-01 | Ultrahard material clad sheet and substrate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376008.8A CN104148686B (en) | 2014-08-01 | 2014-08-01 | Ultrahard material clad sheet and substrate thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN104148686A CN104148686A (en) | 2014-11-19 |
| CN104148686B true CN104148686B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410376008.8A Active CN104148686B (en) | 2014-08-01 | 2014-08-01 | Ultrahard material clad sheet and substrate thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378321A (en) * | 2021-12-30 | 2022-04-22 | 株洲钻石切削刀具股份有限公司 | Cutting insert with different internal and external substrates |
| CN114351026B (en) * | 2022-01-12 | 2023-02-03 | 富耐克超硬材料股份有限公司 | Polycrystalline cubic boron nitride composite material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5672103A (en) * | 1979-11-15 | 1981-06-16 | Toshiba Tungaloy Co Ltd | Composite cutting body |
| CN101168313A (en) * | 2006-10-27 | 2008-04-30 | 河南富耐克超硬材料有限公司 | Ultra-hard composite sheet with hard alloy interlayer |
| GB2462080A (en) * | 2008-07-21 | 2010-01-27 | Reedhycalog Uk Ltd | Polycrystalline diamond composite comprising different sized diamond particles |
| CN101380751A (en) * | 2008-10-21 | 2009-03-11 | 上海江信超硬材料有限公司 | Diamond composite crystal combination lockable four-side knife and manufacture method thereof |
| CN202181849U (en) * | 2011-06-28 | 2012-04-04 | 武汉锐特金刚石有限公司 | Diamond and hard alloy composite sheet |
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Address after: 450001 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 16 Applicant after: Rich Nike superhard material limited company Address before: 450001 Zhengzhou high tech Industrial Development Zone, Henan, Holly Street, No. 16 Applicant before: Henan Funik Ultrahard Material Co., Ltd. |
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