CN108789189A - A kind of preparation process of brazed multilayer diamond tool - Google Patents
A kind of preparation process of brazed multilayer diamond tool Download PDFInfo
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- CN108789189A CN108789189A CN201810764237.5A CN201810764237A CN108789189A CN 108789189 A CN108789189 A CN 108789189A CN 201810764237 A CN201810764237 A CN 201810764237A CN 108789189 A CN108789189 A CN 108789189A
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- diamond
- tool
- brazed
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- diamond tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of preparation processes of brazed multilayer diamond tool, belong to super hard abrasive tools manufacturing technology field.The technique includes the weighing and mixing procedure of brazing filler metal alloy and diamond particles in certain mass ratio；Inhibit the mobility of solder at high temperature by allocating the mass ratio of brazing filler metal alloy and diamond particles mixture, and ensures that being brazed front and back scale error meets national standard；In the tool base of the paste coating that brazing filler metal alloy, diamond particles batch mixing are mixed with adhesive after cleaning, the tool idiosome of hanging cures and carries out vacuum brazing.The present invention realizes the preparation of Ultra-fine and multilayer abrasive grain diamond tool, mold, the disposable thick embryo of completion tool that welds need not be used to prepare in brazing process, the machining process in clipped soldering processes.The preparation process of the present invention is simple, is not limited by diamond grit, solder type and mesh number, diamond tool shape and size, and suitable for large-scale production.
Description
Technical field
The present invention relates to super hard abrasive tools manufacturing technology field, it is specifically related to a kind of brazed multilayer diamond tool
Preparation process.
Background technology
With the continuous social and economic development, diamond tool is widely used in stone handicraft, machinery industry, aviation boat
The industries such as its industry, ceramics and the processing of composite non-metal hard brittle material.The especially processing of the hard brittle materials such as sapphire, zirconium oxide,
It is generally processed using diamond tool in industry, wherein the widest with the preferable use of metal binding agent diamond tool performance
It is general.Its diamond tool preparation process mainly has plating, the techniques such as sintering and soldering.Electroplating technology is simple, precision is high, but gold
The holding intensity of hard rock abrasive grain is low.Sintering process is larger to the holding intensity of diamond abrasive grain, but its tissue tight, chip space
It is small, self-sharpening is poor.Diamond tool prepared by soldering processes, because diamond abrasive grain is held, intensity is big, chip space is big, self-sharpening
Good, stock-removing efficiency is high, becomes hot spot technology.
The brazed diamond tool that market is produced at present is mostly soldering mono-layer diamond tool, though itself and diamond
Grain bond strength is high, but only single layer, and bulk life time is higher than plating diamond tool, lower than sintered diamond tool；And institute
The diamond tool of production is big grit diamond particle, is suitable only for the processing work not high applied to roughing or required precision
In sequence.
Invention content
Technical problem underlying to be solved by this invention is to provide a kind of preparation process of brazed multilayer diamond tool, real
The preparation of existing Ultra-fine and multilayer abrasive grain diamond tool is simultaneously suitable for large-scale production.
In order to solve the above technical problems, the present invention provides a kind of preparation process of brazed multilayer diamond tool,
Include the following steps：
1) batch mixing：Brazing filler metal alloy and diamond particles are weighed with electronic scale very much, artificial to be mixed up to nothing in batch mixing
Macro aggregate phenomenon, then be positioned over ∞ formula batch mixers and carry out machine batch mixing, it is 6~10 hours when machine batch mixer；
2) mixture and adhesive of brazing filler metal alloy and diamond particles are mixed to get paste, paste is coated in
In tool base after cleaning, tool base solidification is hung；
3) the tool base push-in vacuum slide tube furnace after solidification is brazed, obtains diamond tool.It has
Multi-layer diamond composite layer；Brazing temperature is T+ (10~40 DEG C), and T is the melting temperature of brazing filler metal alloy；Holding time be 10~
120min；The vacuum degree of soldering is 4.0 × 10-4~8.0 × 10-3.
In a preferred embodiment：The brazing filler metal alloy is one kind of copper base solder, silver-base solder, nickel-based solder weight；
The diamond particles are graininess or powdered.
In a preferred embodiment：The brazing filler metal alloy differs range with the size of diamond particles mixture after brazing
It is 5 μm~100 μm.
In a preferred embodiment：The adhesive include but not limited to epoxy resin or paraffin or aqueous adhesive or
Aqueous adhesive sticker；
The tool base is cleaned by ultrasonic cleaning agent, and cleaning agent includes but not limited to alcohol or acetone；
In a preferred embodiment：The material of the tool base includes but not limited to 45# steel or 40Cr or wolfram steel.
In a preferred embodiment：It include stomata in the multi-layer diamond composite layer.
In a preferred embodiment：After step 3, further include the steps that diamond tool is subjected to dressing.
Compared to the prior art, technical scheme of the present invention has following advantageous effect：
1. the present invention provides a kind of preparation process of brazed multilayer diamond tool, diamond tool brazing process not
It needs to use mold.
2. it is disposable to weld the present invention provides a kind of preparation process of brazed multilayer diamond tool, it is thick to complete tool
Prepared by embryo, the machining process in clipped soldering processes.
3. the present invention provides a kind of preparation process of brazed multilayer diamond tool, Ultra-fine and multilayer mill are realized
The preparation of particle diamond tool, and meet geometric accuracy requirement.
4. invention provides a kind of preparation process of brazed multilayer diamond tool, breaks through in conventional brazing and excessively emphasize pricker
The solidity thinking for expecting Alloy Wetting and mobility, the inhibition using addition diamond abrasive grain to solder fluidity.Fully moistening
Under the premise of wet, ensure the dimensional accuracy of bistrique by controlling the concentration of diamond abrasive grain, completes soldering fine-granularity diamond
The preparation of tool.
Description of the drawings
Fig. 1 be in a kind of preparation process of brazed multilayer diamond tool 1 brazing filler metal alloy of example with after diamond particles batch mixing
The micrograph of mixture；
Fig. 2 is the batch mixing of example 2 brazing filler metal alloy and diamond particles in a kind of preparation process of brazed multilayer diamond tool
Pattern comparison diagram before and after block brazing；
Fig. 3 is a kind of structure design for the diamond tool that in the preparation process of brazed multilayer diamond tool prepared by example 3
Figure and pictorial diagram；
Fig. 4 is a kind of surface topography for the diamond tool that in the preparation process of brazed multilayer diamond tool prepared by example 3
Figure.
Specific implementation mode
Technical scheme of the present invention is further detailed and is described below by way of specific implementation mode combination attached drawing.
A kind of preparation process of brazed multilayer diamond tool, includes the following steps：
1) batch mixing：Brazing filler metal alloy and diamond particles are weighed with electronic scale very much, artificial to be mixed up to nothing in batch mixing
Macro aggregate phenomenon, then be positioned over ∞ formula batch mixers and carry out machine batch mixing, it is 6~10 hours when machine batch mixer；
2) mixture and adhesive of brazing filler metal alloy and diamond particles are mixed to get paste, paste is coated in
In tool base after cleaning, tool base solidification is hung；
3) the tool base push-in vacuum slide tube furnace after solidification is brazed, obtains diamond tool.It has
Multi-layer diamond composite layer；Brazing temperature is T+ (10~40 DEG C), and T is the melting temperature of brazing filler metal alloy；Holding time be 10~
120min；The vacuum degree of soldering is 4.0 × 10-4~8.0 × 10-3.
Wherein, the brazing filler metal alloy is one kind of copper base solder, silver-base solder, nickel-based solder weight；The diamond
Particle is graininess or powdered.
The brazing filler metal alloy differs ranging from 5 μm~100 μm with the size of diamond particles mixture after brazing.
The adhesive includes but not limited to epoxy resin or paraffin or aqueous adhesive or aqueous adhesive sticker；
The tool base is cleaned by ultrasonic cleaning agent, and cleaning agent includes but not limited to alcohol or acetone；
The material of the tool base includes but not limited to 45# steel or 40Cr or wolfram steel.
It include stomata in the multi-layer diamond composite layer.
After step 3, further include the steps that diamond tool is subjected to dressing.
Embodiment 1
Referring to attached drawing, a kind of preparation process of brazed multilayer diamond tool includes：
CuSnTi brazing filler metal alloys press 17 for (400~500 μm) with W40 diamond particles:3 mass ratio is claimed with electronic scale very much
Amount, it is artificial to be mixed until without macro aggregate phenomenon in batch mixing, then be positioned over ∞ formula batch mixers and carry out machine batch mixing, machine batch mixing
It is 8 hours when machine.
The brazing filler metal alloy that this technique is obtained is placed in SEM microscopically observations with diamond particles mixture, and batch mixing is equal
Even property is good.
Embodiment 2
By the mass ratio (9 for allocating AgCuInTi brazing filler metal alloys and W40 diamond particles mixtures:1) inhibit solder
Mobility at high temperature (760 DEG C).
Brazing filler metal alloy and diamond particles mixture before brazing after, the batch mixing block outer diameter of φ 3mm differs only by 20 μm, substantially
Close to the dimension precision requirement of fine-granularity diamond tool.
Embodiment 3
By CuSnTi brazing filler metal alloys and W40 diamond particles (mass ratio 17:3) mixture and adhesive (epoxy resin)
It is mixed to get paste, paste is coated in the 45# steel tool bases after the cleaning of ultrasonic wave alcohol bath (set by this example
The diamond tool of meter is diamond grinding head), hang tool idiosome solidification (open assembly time 60min)；It is pushed into vacuum slide
Tube furnace is brazed, vacuum brazing temperature be 890 DEG C, holding time 35min, vacuum degree be 8.0 × 10-4~2.0 ×
10-3；
The brazed multilayer diamond grinding head that this technique is obtained is placed in SEM microscopically observations, and multi-layer diamond is compound
It include stomata in layer.
The above, only present pre-ferred embodiments, therefore cannot limit the scope of implementation of the present invention according to this, i.e., according to
Equivalent changes and modifications made by the scope of the claims of the present invention and description all should still belong to more than in the range of the present invention covers
It is described, it is merely preferred embodiments of the present invention, but the design concept of the present invention is not limited thereto, it is any to be familiar with this skill
The technical staff in art field carries out unsubstantiality to the present invention in the technical scope disclosed by the present invention, using this design and changes
It is dynamic, belong to the behavior for invading the scope of the present invention.
Claims (7)
1. a kind of preparation process of brazed multilayer diamond tool, it is characterised in that include the following steps：
1) batch mixing：Brazing filler metal alloy is weighed with diamond particles electronic scale very much, artificial to be mixed until without agglomerate in batch mixing
Poly- phenomenon, then be positioned over ∞ formula batch mixers and carry out machine batch mixing, it is 6~10 hours when machine batch mixer；
2) mixture and adhesive of brazing filler metal alloy and diamond particles are mixed to get paste, paste is coated in cleaning
In tool base afterwards, tool base solidification is hung；
3) the tool base push-in vacuum slide tube furnace after solidification is brazed, obtains diamond tool.It is with multilayer
Diamond composite layer；Brazing temperature is T+ (10~40 DEG C), and T is the melting temperature of brazing filler metal alloy；Holding time be 10~
120min；The vacuum degree of soldering is 4.0 × 10-4~8.0 × 10-3.
2. a kind of preparation process of brazed multilayer diamond tool according to claim 1, it is characterised in that：The pricker
Material alloy is one kind of copper base solder, silver-base solder, nickel-based solder weight；The diamond particles are graininess or powdered.
3. a kind of preparation process of brazed multilayer diamond tool according to claim 1, it is characterised in that：The solder
Alloy differs ranging from 5 μm~100 μm with the size of diamond particles mixture after brazing.
4. a kind of preparation process of brazed multilayer diamond tool according to claim 1, it is characterised in that：The glue
Stick includes but not limited to epoxy resin or paraffin or aqueous adhesive or aqueous adhesive sticker；
The tool base is cleaned by ultrasonic cleaning agent, and cleaning agent includes but not limited to alcohol or acetone.
5. a kind of preparation process of brazed multilayer diamond tool according to claim 1, it is characterised in that：The tool
The material of matrix includes but not limited to 45# steel or 40Cr or wolfram steel.
6. a kind of preparation process of brazed multilayer diamond tool according to claim 1, it is characterised in that：The multilayer
It include stomata in diamond composite layer.
7. a kind of preparation process of brazed multilayer diamond tool according to claim 1, it is characterised in that：In step 3
Later, further include the steps that diamond tool is subjected to dressing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810764237.5A CN108789189A (en) | 2018-07-12 | 2018-07-12 | A kind of preparation process of brazed multilayer diamond tool |
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| CN201810764237.5A CN108789189A (en) | 2018-07-12 | 2018-07-12 | A kind of preparation process of brazed multilayer diamond tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623681A (en) * | 2018-12-21 | 2019-04-16 | 华侨大学 | A kind of preparation process of brazed diamond tool |
| CN110468406A (en) * | 2019-09-02 | 2019-11-19 | 中机智能装备创新研究院(宁波)有限公司 | Wear-resistant coating and preparation method thereof, the cutter ring of shield hobboing cutter, shield hobboing cutter and shield machine |
| CN112247863A (en) * | 2020-10-23 | 2021-01-22 | 江苏韦尔博新材料科技有限公司 | Remanufacturing process of brazed diamond grinding wheel |
| CN114247890A (en) * | 2021-12-28 | 2022-03-29 | 赵玉石 | Brazing diamond and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623681A (en) * | 2018-12-21 | 2019-04-16 | 华侨大学 | A kind of preparation process of brazed diamond tool |
| CN110468406A (en) * | 2019-09-02 | 2019-11-19 | 中机智能装备创新研究院(宁波)有限公司 | Wear-resistant coating and preparation method thereof, the cutter ring of shield hobboing cutter, shield hobboing cutter and shield machine |
| CN112247863A (en) * | 2020-10-23 | 2021-01-22 | 江苏韦尔博新材料科技有限公司 | Remanufacturing process of brazed diamond grinding wheel |
| CN114247890A (en) * | 2021-12-28 | 2022-03-29 | 赵玉石 | Brazing diamond and preparation method thereof |
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Application publication date: 20181113 |