CN112059192A - Production method for orderly arranging diamond sintered bodies - Google Patents
Production method for orderly arranging diamond sintered bodies Download PDFInfo
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- CN112059192A CN112059192A CN202010934007.6A CN202010934007A CN112059192A CN 112059192 A CN112059192 A CN 112059192A CN 202010934007 A CN202010934007 A CN 202010934007A CN 112059192 A CN112059192 A CN 112059192A
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- 239000010432 diamond Substances 0.000 title claims abstract description 180
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 172
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 91
- 239000000843 powder Substances 0.000 claims abstract description 91
- 239000002245 particle Substances 0.000 claims abstract description 87
- 238000003825 pressing Methods 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 238000005299 abrasion Methods 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000032798 delamination Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a production method for orderly arranging diamond sintered bodies, which comprises the steps of filling a first layer of matrix powder in a die cavity of a sintered body pressing die; pre-flattening the matrix powder of the first layer by using a pressure head of a sintered body pressing die; orderly arranging diamond particles on the matrix powder of the first layer; and pressing the diamond particles which are arranged in order into the matrix powder of the first layer by using a pressing head of the sintered body pressing die to obtain a pressed blank layer of the first layer. The invention has the advantages that: pressing the diamond particles into the matrix powder can enable the diamond particles to be better combined with the matrix powder, so that the matrix has better holding force on the diamond particles and the delamination condition is not easy to occur.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of production of diamond tools, in particular to a production method for orderly arranging diamond sintered bodies.
[ background of the invention ]
In a common diamond tool, metal powder and diamond are mainly mechanically mixed and then sintered to obtain the diamond-like carbon material, and the diamond is unevenly distributed in a matrix. When diamond is aggregated, the diamond utilization rate is reduced during machining, and the machining resistance is increased.
The ordered arrangement technology of the diamonds can ensure that the diamonds are uniformly distributed in the matrix, each diamond can play a role in processing, the sharpness can be improved by more than 30 percent, and the diamond matrix quickly occupies a place in the high-end market. The existing ordered arrangement technology of diamond is that matrix powder is firstly pressed into matrix sheets, then the diamond is orderly adhered to the surfaces of the matrix sheets through glue, and finally a plurality of matrix sheets are compounded, superposed and sintered to obtain the ordered arrangement technology of the fine-grained diamond tools and the diamond tools thereof, wherein the ordered arrangement technology of the fine-grained diamond tools is specifically disclosed in Chinese patent application No. 201810871055.8, application No. 2018.08.02. However, the existing ordered diamond arrangement technology has the following disadvantages: the diamond particles are adhered to the surface of the matrix sheet by glue, the matrix has insufficient holding force on the diamond particles, and the delamination condition is easy to occur; the diamond particles are easy to deviate, and the material distribution difficulty is still difficult.
In view of the above problems, the present inventors have further studied and made the present invention.
[ summary of the invention ]
The invention aims to solve the technical problem of providing a production method for orderly arranging diamond sintered bodies, and solves the problems that a matrix has insufficient holding force on diamond particles and the diamond particles are easy to deviate in the existing diamond orderly arranging technology.
The invention is realized by the following steps: a production method of an ordered arrangement of diamond sintered bodies, the production method comprising:
filling a first layer of matrix powder in a die cavity of a sintered body pressing die;
pre-flattening the matrix powder of the first layer by using a pressure head of a sintered body pressing die;
orderly arranging diamond particles on the matrix powder of the first layer;
and pressing the diamond particles which are arranged in order into the matrix powder of the first layer by using a pressing head of the sintered body pressing die to obtain a pressed blank layer of the first layer.
Further, the method also comprises the following steps:
according to the preparation method of the first laminated blank layer, the pressing blank layers of the diamond sintered body are sequentially filled in the cavity of the sintered body pressing die and prepared, then the pressing blank layers are pressed and demoulded to form a final pressing blank, and the final pressing blank is sintered to prepare the sintered body.
Further, before the diamond particles are distributed on the matrix powder in an orderly arrangement, the method further comprises the following steps:
and coating a material layer on the surface of the diamond particles to obtain the diamond coated body with enlarged particle size.
Further, the material of the material layer is an alloy material.
Further, the material of the material layer is matrix powder.
Further, the diamond orderly-arranging mould is used for adsorbing the diamond coating bodies, and the diamond coating bodies are distributed on the matrix powder in an orderly arrangement mode.
Further, the diamond particles have a particle size range of 30/400, including 30/35, 35/40, 40/45, 45/50, 50/60, 60/70, 70/80, 80/100, 100/120, 120/140, 140/170, 170/200, 200/230, 230/270, 270/325, 325/400.
Further, the compact layers comprise diamond orderly-arranged compact layers and diamond-free compact layers which are positioned between the two diamond orderly-arranged compact layers and used for abrasion and depression;
the diamond-free compact layer is prepared by filling a layer of wear powder on the orderly arranged compact layer of the diamonds and pre-flattening the wear powder by using a pressure head.
Further, the wear powder is a metal powder.
Further, when the diamond particles are pressed into the matrix powder in an orderly arrangement, the diamond particles are completely embedded into the matrix powder.
The invention has the advantages that:
1. the diamond particles are pressed into the matrix powder, so that the diamond particles and the matrix powder can be better combined together, the matrix has better holding force on the diamond particles, and the delamination condition is not easy to occur during use; meanwhile, the diamond particles are distributed in the matrix powder in an orderly arrangement mode, the utilization rate of the diamond can be improved, the processing resistance is reduced, and the processing efficiency of the diamond sintered body is improved.
2. The method comprises the steps of filling matrix powder layer by layer in a die cavity of a sintered body pressing die, pre-flattening each layer of filled matrix powder by using a pressure head, distributing diamond particles on the matrix powder in an ordered arrangement mode, and pressing the diamond particles in the ordered arrangement mode into the matrix powder. In the technical scheme of the invention, the pre-flattening operation can ensure that the upper surface of each layer of the matrix powder is relatively flat after each layer of the matrix powder is filled, thereby ensuring that diamond particles are orderly arranged and cannot deviate due to uneven surfaces, and being beneficial to improving the distribution uniformity of the diamond particles; the diamond particles are pressed into the matrix powder for each layer with the diamond particles, so that the diamond particles and the matrix powder can be better combined together, the matrix has better holding force on the diamond particles, and the situation of delamination is not easy to occur when the matrix is used; the diamond sintered body with the multilayer structure is filled layer by layer, the diamond particles which are pressed into the diamond sintered body layer by layer and are orderly arranged are pressed into the diamond sintered body layer by layer, finally, the pressed blank layers are pressed and demoulded to form a final pressed blank, and the layers can be better bonded together through the pressing of the powder layer and the powder layer. Meanwhile, the invention adopts a layer of compact layers which are filled with all the compact layers, and then the compact layers are uniformly pressed and demoulded to form the final compact.
3. Set up no diamond compact layer between two-layer diamond orderly arrangement compact layer for in concrete course of working, no diamond compact layer can be consumed and sunken into the recess by wearing and tearing sooner, and this can enough satisfy the chip removal effect, can promote the sharpness of diamond sintered body again, can also reduction in production cost simultaneously.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic representation of the steps of the method of the present invention to produce a first laminate layer.
[ detailed description ] embodiments
The embodiment of the invention provides a production method for orderly arranging diamond sintered bodies, solves the technical problems that the holding force of a matrix body on diamond particles is insufficient and the diamond particles are easy to deviate in the existing technology for orderly arranging diamonds, and achieves the technical effects of improving the holding force of the matrix body on the diamond particles and improving the distribution uniformity of the diamond particles.
In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea:
in the process of distributing, the matrix powder of each layer is pre-pressed, then the diamond particles are distributed on the matrix powder in an orderly arrangement mode, and the diamond particles in the orderly arrangement mode are pressed into the matrix powder, so that the diamond particles are embedded into the matrix powder, the matrix is guaranteed to have better holding force on the diamond particles, the diamond particles are not prone to deviation, and the distribution uniformity of the diamond particles is improved.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
Referring to fig. 1, a method for producing an ordered array of diamond sintered bodies according to the present invention includes:
filling a first layer of matrix powder in a die cavity of a sintered body pressing die;
pre-flattening the matrix powder of the first layer by using a pressure head of a sintered body pressing die;
orderly arranging diamond particles on the matrix powder of the first layer;
and pressing the diamond particles which are arranged in order into the matrix powder of the first layer by using a pressing head of the sintered body pressing die to obtain a pressed blank layer of the first layer.
According to the invention, the diamond particles are pressed into the matrix powder, so that the diamond particles and the matrix powder can be better combined together, the matrix has better holding force on the diamond particles, and the delamination condition is not easy to occur during use. Meanwhile, the diamond particles are distributed in the matrix powder in an orderly arrangement mode, the utilization rate of the diamond can be improved, the processing resistance is reduced, and the processing efficiency of the diamond sintered body is improved.
In the present invention, the production method further comprises:
according to the first method of producing the laminated green layers, the respective green layers of the diamond sintered body are sequentially filled into the cavity of the sintered body pressing mold and produced, and then the green layers are pressed, released from the mold to form a final green body, and the final green body is sintered to produce a sintered body (e.g., a diamond segment).
The invention adopts a layer of filling matrix powder in a die cavity of a sintered body pressing die, and each layer of filled matrix powder is firstly pre-pressed by a pressure head, then diamond particles are distributed on the matrix powder in an orderly arrangement, and the diamond particles in the orderly arrangement are pressed into the matrix powder. In the technical scheme of the invention, the pre-flattening operation can ensure that the upper surface of each layer of the matrix powder is relatively flat after each layer of the matrix powder is filled, thereby ensuring that diamond particles are orderly arranged and cannot deviate due to uneven surfaces, and being beneficial to improving the distribution uniformity of the diamond particles; the diamond particles are pressed into the matrix powder for each layer with the diamond particles, so that the diamond particles and the matrix powder can be better combined together, the matrix has better holding force on the diamond particles, and the situation of delamination is not easy to occur when the matrix is used; the diamond sintered body with the multilayer structure is filled layer by layer, the diamond particles which are pressed into the diamond sintered body layer by layer and are orderly arranged are pressed into the diamond sintered body layer by layer, finally, the pressed blank layers are pressed and demoulded to form a final pressed blank, and the layers can be better bonded together through the pressing of the powder layer and the powder layer. Meanwhile, the invention adopts a layer of compact layers which are filled with all the compact layers, and then the compact layers are uniformly pressed and demoulded to form the final compact.
In the present invention, before the diamond particles are distributed on the matrix powder in an ordered arrangement, the method further comprises:
and coating a material layer on the surface of the diamond particles to obtain the diamond coated body with enlarged particle size. The diamond particles are small and not easy to adsorb, and the diamond coating body with large particle size is prepared by coating the material layer on the surface of the diamond particles, so that the adsorption and distribution of the diamond particles can be facilitated on one hand, and the combination of the diamond particles and matrix powder is facilitated on the other hand.
In the invention, the material of the material layer is an alloy material. Because the matrix powder is the alloy powder, the surface of the diamond particles is coated by adopting the alloy material, the diamond coating body and the matrix powder can be well combined together, and the holding force is improved. The alloying elements of the matrix powder may include Co, Fe, Cu, Ni, Sn, Zn, Mo, Si.
In the invention, the material of the material layer is matrix powder. According to the invention, the surface of the diamond particles is coated by the matrix powder which is the same as the matrix material, so that the diamond coating body can be better combined with the matrix powder after the coated diamond coating body is pressed into the matrix powder, the better holding force of the matrix to the diamond particles is further ensured, and the finally prepared diamond sintered body has better processing performance.
In the invention, the diamond ordered arrangement mould is used for adsorbing the diamond coating body, and the diamond coating body is distributed on the matrix powder in an ordered arrangement manner. Through adopting the diamond orderly arrangement mould to carry out the absorption and the cloth of diamond coating, compare with artifical cloth, can enough guarantee the homogeneity that diamond particles distributes, can promote cloth efficiency again. In specific implementation, the diameter of the prepared diamond coating can meet the adsorption requirement of the diamond orderly-arranged die by adjusting the thickness of the material layer coated on the surface of the diamond particles, so that the diamond coating can be better adsorbed.
When the ordered diamond arrangement mould is specifically designed, on the premise of the matrix components, the use performance (cutting, drilling and polishing), the manufacturing process, the cost and other targets of the diamond sintered body, the diamond granularity, the grade, the concentration and the particle number are calculated, the arrangement positions of diamonds with various granularity grades are designed, and design data are provided for the diamond arrangement mould; the diamond orderly-arranging die is manufactured based on the data provided above, and the diamond orderly-arranging die is installed on full-automatic equipment by taking compressed air as an adsorption medium, so that automatic material distribution is realized on the basis of achieving the purpose of orderly arrangement, and the production efficiency is improved.
In the present invention, the diamond particles have a particle size range of 30/400, including 30/35, 35/40, 40/45, 45/50, 50/60, 60/70, 70/80, 80/100, 100/120, 120/140, 140/170, 170/200, 200/230, 230/270, 270/325, 325/400. The invention adopts the material layer to coat the surface of the diamond particles to enlarge the whole particle size, thereby being applicable to the ordered arrangement of the diamond particles with various fine particle sizes.
In the invention, the compact layers comprise a diamond ordered arrangement compact layer and a diamond-free compact layer which is positioned between the two diamond ordered arrangement compact layers and is used for abrasion depression;
the diamond-free compact layer is prepared by filling a layer of wear powder on the orderly arranged compact layer of the diamonds and pre-flattening the wear powder by using a pressure head.
According to the invention, the diamond-free compact layer is arranged between the two diamond orderly-arranged compact layers, so that the diamond-free compact layer can be quickly worn and consumed and can be sunken into a groove in the specific processing process, the chip removal effect can be met, the sharpness of a diamond sintered body can be improved, and the production cost can be reduced. Because no diamond compact layer is required to be distributed with diamond, the diamond compact layer is only required to be pre-flattened after a layer of abrasion powder is filled. In addition, the diamond-free compact layer is also prepared by powder filling, so that the diamond-free compact layer and the orderly-arranged compact layers of the diamonds can be well combined together, and the delamination condition is avoided.
According to the technical scheme, the pressing layers with different formulas can be conveniently arranged between the diamond orderly-arranged pressing layer at the lowermost layer and the diamond orderly-arranged pressing layer at the uppermost layer, the material distribution mode is high in flexibility, and actual production requirements can be well met.
In the present invention, the abrasion powder is a metal powder. Because the matrix powder is alloy powder, the abrasion powder is selected as metal powder, so that the diamond-free compact layer and the diamond orderly-arranged compact layer can be better combined together.
In the present invention, in order to ensure a better holding force of the matrix on the diamond particles, the diamond particles are completely embedded into the matrix powder when the diamond particles are pressed into the matrix powder in an ordered arrangement.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (10)
1. A method for producing an ordered array of diamond sintered bodies, comprising:
filling a first layer of matrix powder in a die cavity of a sintered body pressing die;
pre-flattening the matrix powder of the first layer by using a pressure head of a sintered body pressing die;
orderly arranging diamond particles on the matrix powder of the first layer;
and pressing the diamond particles which are arranged in order into the matrix powder of the first layer by using a pressing head of the sintered body pressing die to obtain a pressed blank layer of the first layer.
2. The method of producing an ordered arrangement of diamond sintered bodies according to claim 1, further comprising:
according to the preparation method of the first laminated blank layer, the pressing blank layers of the diamond sintered body are sequentially filled in the cavity of the sintered body pressing die and prepared, then the pressing blank layers are pressed and demoulded to form a final pressing blank, and the final pressing blank is sintered to prepare the sintered body.
3. A method of producing an ordered arrangement of diamond sintered bodies according to claim 2, wherein: before the diamond particles are distributed on the matrix powder in an orderly arrangement, the method further comprises the following steps:
and coating a material layer on the surface of the diamond particles to obtain the diamond coated body with enlarged particle size.
4. A method of producing an ordered arrangement of diamond sintered bodies according to claim 3, wherein: the material of the material layer is an alloy material.
5. A method of producing an ordered arrangement of diamond sintered bodies according to claim 4, wherein: the material of the material layer is matrix powder.
6. A method of producing an ordered arrangement of diamond sintered bodies according to claim 3, wherein: adsorbing the diamond coating body by using the orderly diamond arranging mould, and distributing the orderly diamond coating body on the matrix powder.
7. A method of producing an ordered arrangement of diamond sintered bodies according to claim 3, wherein: the diamond particles have a size range of 30/400, including 30/35, 35/40, 40/45, 45/50, 50/60, 60/70, 70/80, 80/100, 100/120, 120/140, 140/170, 170/200, 200/230, 230/270, 270/325, 325/400.
8. A method of producing an ordered arrangement of diamond sintered bodies according to claim 2, wherein: the compact layers comprise diamond orderly-arranged compact layers and diamond-free compact layers which are positioned between the two diamond orderly-arranged compact layers and used for abrasion and recess;
the diamond-free compact layer is prepared by filling a layer of wear powder on the orderly arranged compact layer of the diamonds and pre-flattening the wear powder by using a pressure head.
9. A method of producing an ordered arrangement of diamond sintered bodies according to claim 8, wherein: the wear powder is a metal powder.
10. A method of producing an ordered arrangement of diamond sintered bodies according to claim 1, wherein: when the ordered array of diamond particles is pressed into the matrix powder, the diamond particles are completely embedded into the matrix powder.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113957285A (en) * | 2021-10-29 | 2022-01-21 | 成都惠锋智造科技有限公司 | Preparation method of composite material |
| CN113976882A (en) * | 2021-10-29 | 2022-01-28 | 成都惠锋智造科技有限公司 | Preparation method of composite material |
| CN114000004A (en) * | 2021-10-29 | 2022-02-01 | 成都惠锋智造科技有限公司 | Preparation method of composite material |
| CN114653947A (en) * | 2022-03-29 | 2022-06-24 | 江西离子型稀土工程技术研究有限公司 | High-sharpness rare earth-iron-based diamond tool and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113957285A (en) * | 2021-10-29 | 2022-01-21 | 成都惠锋智造科技有限公司 | Preparation method of composite material |
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| CN114000004A (en) * | 2021-10-29 | 2022-02-01 | 成都惠锋智造科技有限公司 | Preparation method of composite material |
| CN114653947A (en) * | 2022-03-29 | 2022-06-24 | 江西离子型稀土工程技术研究有限公司 | High-sharpness rare earth-iron-based diamond tool and preparation method thereof |
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Application publication date: 20201211 |