CN106825568A - A kind of 3D printing manufacture method of metal matrix diamond composites and its parts - Google Patents

A kind of 3D printing manufacture method of metal matrix diamond composites and its parts Download PDF

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Publication number
CN106825568A
CN106825568A CN201710059263.3A CN201710059263A CN106825568A CN 106825568 A CN106825568 A CN 106825568A CN 201710059263 A CN201710059263 A CN 201710059263A CN 106825568 A CN106825568 A CN 106825568A
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diamond
parts
metal matrix
metal
manufacture method
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杨展
季宪泰
周燕
段隆臣
文世峰
谭松成
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China University of Geosciences
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China University of Geosciences
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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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B22F1/0003—
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/64—Treatment of workpieces or articles after build-up by thermal means
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • 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
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/36—Process control of energy beam parameters
    • 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
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/36—Process control of energy beam parameters
    • B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention discloses a kind of metal matrix diamond composites and its 3D printing manufacture method of parts.Composite by volumes below than raw material be made：Diamond 2%~30%, remaining is metal dust；The particle diameter of the metal dust is 15 μm~65 μm；The grade of the diamond is in SMD30More than type, the granularity of the diamond is 35 mesh~180 mesh；It is put into after diamond is well mixed with carcass metal powder material in the feed device of selective laser melting unit, carries out 3D printing and the molded parts on substrate；Shaping carries out stress relief annealing process after terminating to it, promotes microcrack healing, eliminates fault of construction, regulates and controls its performance.The present invention can realize metal matrix alloying, and diamond is realized effectively to plate, and obtain the metal matrix diamond composites of preferable hardness and wearability, produce the metal matrix diamond composites parts with labyrinth.

Description

A kind of 3D printing manufacture method of metal matrix diamond composites and its parts
Technical field
The present invention relates to manufacturing technology field, more particularly to a kind of metal matrix diamond composites and its parts 3D Printing manufacture method.
Background technology
The developing history of metal-base composites existing decades, the plasticity and toughness that metal is had concurrently due to it and enhancing The high intensity and high rigidity of body ceramics, and proportion is small, therefore, it is widely used in the fields such as mine locating, machinery, space flight and aviation.Gold Hard rock has high heat conductance, high Young's modulus and low linear expansion coefficient, prominent specific modulus, as enhancing due to it Body is added in metal base, hardness, wearability, thermal conductivity, the thermal coefficient of expansion of reduction base material of base material can be significantly improved, in gold Category structure and functional material aspect have a wide range of applications.
At present, the main method for preparing diamond/metal-base composites can be divided into solid molding method and liquid formation method Two major classes.Conventional technology of preparing mainly includes powder metallurgic method, discharge plasma sintering method (SPS), liquid infiltration.But use The metal matrix diamond composites that conventional method is developed belong to " pseudo-alloy " material, and it is wrapped to plating for diamond with machinery Based on edge, the firmness for plating is low, influences the quality of composite.Secondly, conventional method is in order to obtain high rigidity, high-wearing feature Metal matrix diamond composites, it is necessary to using the artificial hard material such as tungsten carbide of high level, hot pressing temperature is higher (980~1020 DEG C), pressure are larger (18~25MPa), and power consumption is big, high to equipment requirement.In addition, using conventional method system Metal matrix diamond composites are made, its structure is relatively simple, it is difficult to make baroque product, and inefficiency；Have The a little reasonable in design and structure type of science, but often due to charging is difficult, efficiency is low or quality is unqualified without being production list Position receives, it is difficult to popularization and application.
The content of the invention
In view of this, high The embodiment provides a kind of hardness, wearability is strong, it is to avoid use the hard such as tungsten carbide The metal matrix diamond composites of material and its 3D printing manufacture method of parts.
Embodiments of the invention provide a kind of metal matrix diamond composites, by volumes below than raw material be made：Gold Hard rock is 2%~30%, and remaining is metal dust；
The metal dust is spherical or subsphaeroidal, and the particle diameter of the metal dust is 15 μm~65 μm, the diamond Grade in SMD30More than type, the granularity of the diamond is 35 mesh~180 mesh.
Further, the metal dust is iron-nickel-cobalt pre-alloyed powder, soldering pre-alloyed powder and copper-tin prealloy powder One or more in end.
The 3D printing manufacture method of a kind of metal matrix diamond composites and its parts, comprises the following steps：
(1) metal dust is well mixed by above-mentioned volume ratio with diamond through ball mill；
(2) threedimensional model of parts is set up on computers, and the threedimensional model of parts is imported into 3D printing control In software processed；
(3) substrate of the uniform compound that step (1) is obtained in the selective laser melting unit controlled by control software Upper shaping；
(4) molded parts that step (3) is obtained are taken out in the lump together with substrate, and molded parts and substrate is carried out Stress relief annealing process；
(5) molded parts and substrate that are processed by step (4) are carried out into cutting separation, that is, obtains metal-base diamond Composite material parts.
Further, in the step (1), metal dust carries out machinery and mixes in protective atmosphere with diamond by ball mill Material.
Further, in the step (2), the parts threedimensional model of foundation imported into 3D printing after being converted into STL forms In control software.
Further, in the step (3), compound is first sent into the feed device of selective laser melting unit, and into Die cavity is vacuumized, and is passed through protective gas, and then compound is delivered on the substrate of forming cavity, the molded parts on substrate.
Further, the forming parameter of selective laser melting unit is：Laser power 150W~250W, sweep speed 200mm/ S~1000mm/s, sweep span 0.06mm~0.08mm, powdering thickness 0.2mm~0.5mm.
Further, the protective gas is nitrogen or argon gas.
Further, in the step (4), the metal matrix diamond composites parts to shaping carry out stress relief annealing Treatment, to regulate and control its performance, stress relief annealing process parameter is：Annealing temperature be 200 DEG C~400 DEG C, annealing time be 2h~ 6h。
Further, in the step (4), molded parts and substrate carry out cutting separation by wire cutting.
Compared with prior art, the present invention has following technique effect：
(1) metal matrix diamond composites hardness of the invention is big, and wearability is strong；
(2) metal matrix diamond composites of the invention are conducive to secondary development end product, for example：Diamond drill machine Head, diamond reamer and shaped diamond stabilizer, are widely used in the fields such as geological prospecting, oil drilling and hazards control；
(3) present invention is based on the manufacture method of 3D printing technique, form metal base diamond composite and its parts； The method of form metal base diamond composite and its parts is to use 3D printing technique and method, rather than other routine sides Method；
(4) present invention melts shaping using selective laser, and fast heat, rapid cooling, forming accuracy are high, and cooling velocity is fast, effectively keeps away Exempt to use the artificial hard material such as tungsten carbide, and effect by high energy laser beam is completely melt metal powder, realizes alloying, Be conducive to the metallurgical binding of carcass metal and diamond, so as to realize carcass metal effectively plating to diamond, the gold for obtaining Category base diamond composite is true alloy composite materials, the parts dense structure of shaping, stable mechanical property and excellent；
(5) process characteristic that the present invention is successively manufactured using selective laser fusing, can save some of traditional diamond-making technique Numerous and diverse link, can process shape and baroque product, shorten the cycle of manufacture, reduce the cost of production.
Brief description of the drawings
Fig. 1 is the flow of the 3D printing manufacture method of a kind of metal matrix diamond composites of the invention and its parts Figure.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is further described.
Embodiment 1
The embodiment provides a kind of metal matrix diamond composites, by volumes below than raw material be made： Diamond 2%, remaining is metal dust；
Metal dust is spherical or subsphaeroidal, and the particle diameter of metal dust is 15 μm~65 μm, and the grade of the diamond exists SMD30More than type, the granularity of the diamond is 80 mesh~100 mesh.Metal dust is FMA-201 iron-nickel-cobalt pre-alloyed powders With the compound of copper-tin prealloy powder.
The 3D printing manufacture method of Fig. 1, a kind of metal matrix diamond composites and its parts is refer to, including it is following Step：
(1) metal dust is well mixed in argon gas by above-mentioned volume ratio with diamond by ball mill, is conducive to carrying Dispersed precipitate degree of the diamond high during post forming in metal dust；
(2) threedimensional model of parts is set up on computers, and the threedimensional model of parts is converted into STL forms lead Enter in control software；
(3) on substrate of the compound that step (1) is obtained in the selective laser melting unit controlled by control software into Shape；Compound is first sent into the feed device of selective laser melting unit, and forming cavity is vacuumized, and is passed through argon gas, then will Compound is delivered on the substrate of forming cavity, the molded parts on substrate, and the forming parameter of selective laser melting unit is：Swash Luminous power 150W, sweep speed 1000mm/s, sweep span 0.08mm, powdering thickness 0.2mm；The grain of powdering thickness and diamond Degree is corresponding, and powdering thickness is too thin, and diamond is easily blown off by scraper plate, and powdering thickness is too thick, easily causes metal dust and melts impermeable, property Can be deteriorated, and due to melting range metal dust solidification after, volume diminishes so that actual height reduction, therefore, select it is smaller In the powdering thickness of diamond particle diameter；
(4) molded parts that step (3) is obtained are taken out in the lump together with substrate, and molded parts and substrate is carried out Stress relief annealing process；The annealing temperature of stress relief annealing process is 250 DEG C, and annealing time is 4h；Effectively micro-crack is promoted to heal Close, eliminate fault of construction；
(5) molded parts and substrate that are processed by step (4) are carried out into cutting separation by wire cutting, that is, obtains gold Category base diamond composite material parts.
Embodiment 2
The embodiment provides a kind of metal matrix diamond composites, by volumes below than raw material be made： Diamond 16%, remaining is metal dust；
Metal dust is spherical or subsphaeroidal, and the particle diameter of metal dust is 20 μm~65 μm, and the grade of the diamond exists SMD30More than type, the granularity of the diamond is 70 mesh~80 mesh.Metal dust be FMA-201 iron-nickel-cobalts pre-alloyed powder and The mixed powder of copper-tin pre-alloyed powder.
The 3D printing manufacture method of Fig. 1, a kind of metal matrix diamond composites and its parts is refer to, including it is following Step：
(1) metal dust and diamond are pressed into above-mentioned volume ratio, it is well mixed by ball mill in argon gas, be conducive to carrying Dispersed precipitate degree of the diamond high during post forming in metal dust；
(2) threedimensional model of parts is set up on computers, and the threedimensional model of parts is converted into STL forms lead Enter in control software；
(3) on substrate of the compound that step (1) is obtained in the selective laser melting unit controlled by control software into Shape；Compound is first sent into the feed device of selective laser melting unit, and forming cavity is vacuumized, and is passed through argon gas, then will Compound is delivered on the substrate of forming cavity, the molded parts on substrate, and the forming parameter of selective laser melting unit is：Swash Luminous power 160W, sweep speed 600mm/s, sweep span 0.07mm, powdering thickness 0.25mm；The grain of powdering thickness and diamond Degree is corresponding, and powdering thickness is too thin, and diamond is easily blown off by scraper plate, and powdering thickness is too thick, easily causes metal dust and melts impermeable, property Can be deteriorated, and due to melting range metal dust solidification after, volume diminishes so that actual height reduction, therefore, select it is smaller In the powdering thickness of diamond particle diameter；
(4) molded parts that step (3) is obtained are taken out in the lump together with substrate, and molded parts and substrate is carried out Stress relief annealing process；The annealing temperature of stress relief annealing process is 300 DEG C, and annealing time is 4h；Effectively micro-crack is promoted to heal Close, eliminate fault of construction；
(5) molded parts and substrate that are processed by step (4) are carried out into cutting separation by wire cutting, that is, obtains gold Category base diamond composite material parts.
Embodiment 3
The embodiment provides a kind of metal matrix diamond composites, by volumes below than raw material be made： Diamond 30%, remaining is metal dust；
Metal dust is spherical or subsphaeroidal, and the particle diameter of metal dust is 20 μm~65 μm, and the grade of the diamond exists SMD30More than type, the granularity of the diamond is 40 mesh~50 mesh.Metal dust be FMA-201 iron-cobalt-nickel pre-alloyed powder and The mixed powder of copper-tin pre-alloyed powder.
The 3D printing manufacture method of Fig. 1, a kind of metal matrix diamond composites and its parts is refer to, including it is following Step：
(1) metal dust is well mixed by above-mentioned volume ratio, in argon gas with diamond by ball mill, is conducive to carrying Dispersed precipitate degree of the diamond high during post forming in metal dust；
(2) threedimensional model of parts is set up on computers, and the threedimensional model of parts is converted into STL forms lead Enter in control software；
(3) on substrate of the compound that step (1) is obtained in the selective laser melting unit controlled by control software into Shape；Compound is first sent into the feed device of selective laser melting unit, and forming cavity is vacuumized, and is passed through argon gas, then will Compound is delivered on the substrate of forming cavity, the molded parts on substrate, and the forming parameter of selective laser melting unit is：Swash Luminous power 250W, sweep speed 200mm/s, sweep span 0.06mm, powdering thickness 0.50mm；The grain of powdering thickness and diamond Degree is corresponding, and powdering thickness is too thin, and diamond is easily blown off by scraper plate, and powdering thickness is too thick, easily causes metal dust and melts impermeable, property Can be deteriorated, and due to melting range metal dust solidification after, volume diminishes so that actual height reduction, therefore, select it is smaller In the powdering thickness of diamond particle diameter；
(4) molded parts that step (3) is obtained are taken out in the lump together with substrate, and molded parts and substrate is carried out Stress relief annealing process；The annealing temperature of stress relief annealing process is 400 DEG C, and annealing time is 2h；Effectively micro-crack is promoted to heal Close, eliminate fault of construction；
(5) molded parts and substrate that are processed by step (4) are carried out into cutting separation by wire cutting, that is, obtains gold Category base diamond composite material parts.
The method that the present invention is melted using selective laser, in forming process, fusion of metal powder forms molten bath, and diamond exists Deposited in molten bath, wrapped up by molten metal, after solidification to be cooled, diamond is to be plated in metal dust, and forming process terminates Can obtain the metal matrix diamond composites parts of preferable hardness and wearability.
In the case where not conflicting, the feature in embodiment herein-above set forth and embodiment can be combined with each other.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (10)

1. a kind of metal matrix diamond composites, it is characterised in that by volumes below than raw material constitute：Diamond 2%~ 30%, remaining is metal dust；The particle diameter of the metal dust is 15 μm~65 μm, and the grade of the diamond is in SMD30Type with On, the granularity of the diamond is 35 mesh~180 mesh.
2. metal matrix diamond composites according to claim 1, it is characterised in that the metal dust be iron-nickel- One or more in cobalt pre-alloyed powder, soldering pre-alloyed powder and copper-tin pre-alloyed powder.
3. the 3D printing manufacture method of a kind of metal matrix diamond composites and its parts, it is characterised in that including following Step：
(1) metal dust is well mixed by 2%~30% volume ratio with diamond through ball mill；
(2) threedimensional model of parts is set up on computers, and it is soft that the threedimensional model of parts is imported into 3D printing control In part；
(3) on substrate of the uniform powder that step (1) is obtained in the selective laser melting unit controlled by 3D control softwares into Shape；
(4) molded parts that step (3) is obtained are taken out in the lump together with substrate, and molded parts and substrate is carried out to answer Power makes annealing treatment；
(5) molded parts and substrate that are processed by step (4) are carried out into cutting separation, that is, obtains metal-base diamond and be combined Material parts.
4. the 3D printing manufacture method of metal matrix diamond composites according to claim 3 and its parts, it is special Levy and be, in the step (2), first set up the threedimensional model of parts, and be converted into STL forms, then imported into 3D printing control In software processed.
5. the 3D printing manufacture method of metal matrix diamond composites according to claim 3 and its parts, it is special Levy and be, in the step (3), diamond and the uniform mixed powder of metal dust are first sent into selective laser melting unit Feed device in, and forming cavity is vacuumized, be passed through protective gas, then mixed powder is delivered to the substrate of forming cavity On, the molded parts on substrate.
6. metal matrix diamond composites according to claim 3 or 5 and its 3D printing manufacture method of parts, its It is characterised by, the forming parameter of the selective laser melting unit is：Laser power 150W~250W, sweep speed 200mm/s ~1000mm/s, sweep span 0.06mm~0.08mm, powdering thickness 0.2mm~0.5mm.
7. the 3D printing manufacture method of metal matrix diamond composites according to claim 3 and its parts, it is special Levy and be, in the step (4), the metal matrix diamond composites parts to shaping carry out stress relief annealing process, with Regulate and control its performance, stress relief annealing process parameter is：Annealing temperature is 200 DEG C~400 DEG C, and annealing time is 2h~6h.
8. the 3D printing manufacture method of metal matrix diamond composites according to claim 3 and its parts, it is special Levy and be, in the step (1), metal dust carries out mechanical batch mixing in protective atmosphere with diamond by ball mill.
9. metal matrix diamond composites according to claim 5 or 8 and its 3D printing manufacture method of parts, its It is characterised by, the protective gas is nitrogen or argon gas.
10. the 3D printing manufacture method of metal matrix diamond composites according to claim 3 and its parts, it is special Levy and be, in the step (4), molded parts and substrate carry out cutting separation by wire cutting.
CN201710059263.3A 2017-01-24 2017-01-24 A kind of 3D printing manufacture method of metal matrix diamond composites and its parts Pending CN106825568A (en)

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CN111872390A (en) * 2020-08-06 2020-11-03 哈尔滨工业大学 Method for preparing diamond metal matrix composite material by selective laser melting process
CN111889676A (en) * 2020-08-06 2020-11-06 哈尔滨工业大学 Method for preparing diamond copper-based composite material by additive manufacturing process
CN112048633A (en) * 2020-09-17 2020-12-08 哈尔滨工业大学 Method for preparing aluminum alloy diamond composite material by additive manufacturing technology
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CN113462924A (en) * 2021-06-18 2021-10-01 中国地质大学（武汉） Titanium-plated diamond copper composite material and preparation method thereof
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CN110106461A (en) * 2019-05-22 2019-08-09 中国矿业大学 A kind of preparation of diamond alloy material and finish processing method
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CN110042292A (en) * 2019-06-03 2019-07-23 湖南伊澍智能制造有限公司 A kind of hard alloy-diamond composite and preparation method thereof
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CN110698202B (en) * 2019-11-08 2022-04-05 北京科技大学广州新材料研究院 Diamond-silicon carbide composite material and preparation method and application thereof
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CN111872390A (en) * 2020-08-06 2020-11-03 哈尔滨工业大学 Method for preparing diamond metal matrix composite material by selective laser melting process
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CN113462924B (en) * 2021-06-18 2022-03-29 中国地质大学（武汉） Titanium-plated diamond copper composite material and preparation method thereof
CN113462924A (en) * 2021-06-18 2021-10-01 中国地质大学（武汉） Titanium-plated diamond copper composite material and preparation method thereof
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