CN110170718A - A kind of processing method of tungsten carbide tipped tool - Google Patents
A kind of processing method of tungsten carbide tipped tool Download PDFInfo
- Publication number
- CN110170718A CN110170718A CN201910499567.0A CN201910499567A CN110170718A CN 110170718 A CN110170718 A CN 110170718A CN 201910499567 A CN201910499567 A CN 201910499567A CN 110170718 A CN110170718 A CN 110170718A
- Authority
- CN
- China
- Prior art keywords
- tungsten carbide
- processing method
- steel
- carbide tipped
- tipped tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A kind of processing method of tungsten carbide tipped tool, the present invention relates to for the cutter of machining, cutlery, mold, digging tool and using wear-resisting as main processing purpose technical field, especially a kind of processing method of tungsten carbide tipped tool.It is to be achieved through the following technical solutions: a kind of processing method of tungsten carbide tipped tool, it is " vacuum atom is brazed diffusion facilities " using Patent No. " 201811600482.9 ", patent name, under given conditions, it is brazed by contact area of the special fixture to processed wolfram steel and common steel.The present invention passes through the atom phase counterdiffusion between isoelectric membrane face, local warming, fusion forms a kind of joint technology of positive connection, the seamless combination between same metal or dissimilar metal can be carried out, high-intensitive, whole face engages, it is not necessary that intermediate auxiliary material, high-precision ensure, deflection is small, non-environmental-pollution.
Description
Technical field
The present invention relates to for the cutter of machining, cutlery, mold, digging tool and using wear-resisting as main processing mesh
Technical field, especially a kind of processing method of tungsten carbide tipped tool.
Background technique
Tungsten carbide tipped tool, as typical high rigidity and high-intensitive tool materials, with high temperature resistant, corrosion-resistant, wear-resistant
Characteristic, be mainly widely used in the heavy industry fields such as automobile and parts production, mold manufacture, aerospace.But
Due to raw material and production cost, the cutter of wolfram steel production is expensive, and in mechanical processing process, only cutter
Blade carrying out machining movement, other positions are only used for clamping, therefore in existing tungsten carbide tipped tool, people should
Using material property possessed by wolfram steel, and the considerations of be conceived to cost, wolfram steel and other common steels are often passed through into welding
Tungsten carbide tipped tool or wear part etc. is made in method.Its main feature is that a large amount of precious metal can be saved, production cost is reduced, is mentioned
The service life of high tungsten carbide tipped tool.
In view of this, most of tungsten carbide tipped tool is to be embedded on medium carbon steel or low alloy steel substrate to make with the method for welding
With the service performance of welding procedure and wolfram steel is closely related, and the quality of welding performance directly influences the using effect of wolfram steel.And
At present the common method for welding of wolfram steel and steel mainly have oxygen-acetylene torch soldering, high-frequency induction brazing, contact resistance soldering,
Soak copper brazing and heating furnace brazing etc..In above-mentioned welding method, there is the problems such as high brittleness, poor toughness, study carefully it
Reason, i.e., in the welding process, be soldered region temperature be it is identical, due to wolfram steel linear expansion coefficient (4.1~7.0 ×
10-6/ DEG C) with the linear expansion coefficient (12 × 10 of ordinary steel- 6/ DEG C) very big compared to difference, the linear expansion coefficient of wolfram steel only has steel
1/3~1/2.Wolfram steel and the steel capital free wxpansion when heating, but when cooling down steel shrinkage it is more much bigger than wolfram steel.Weld seam is at this time
By pressure state, and tensile stress is then born on wolfram steel surface.If residual stress is greater than the tensile strength of wolfram steel, wolfram steel
Surface may crack.This is one of the main reason cracked when wolfram steel soldering.And wolfram steel hardness and wear resistance
A possibility that directly proportional with welding crack sensibility, the hardness of wolfram steel is higher, and when soldering cracks is bigger.Additionally there are have
When the influence of welding residual stress and wolfram steel are heated to 800 DEG C or more in air, the surface of wolfram steel starts the problem of aoxidizing.This
A little factors also require people expertly to grasp wolfram steel welding technique and can just produce the high-quality wolfram steel production having cost-effective advantages
Product.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art described above place, and provide a kind of processing of tungsten carbide tipped tool
Method.
The present invention is to be achieved through the following technical solutions: a kind of processing method of tungsten carbide tipped tool, using Patent No.
" 201811600482.9 ", patent name are " vacuum atom is brazed diffusion facilities ", under given conditions, pass through special fixture pair
The contact area of processed wolfram steel and common steel is brazed.
The specified conditions are as follows: in the welding process, to wolfram steel A and common steel B apply pulse high current (1KA~
30KA) and certain pressure (50N~5000N), (vacuum degree: 5X10 then is welded in high vacuum environment0Pa~1X10- 2Pa), total time needed for wolfram steel Product jointing is in 2~10min.
The special fixture is made of housing, heating liner, and two hollow upper and lower opposite heating liners are solid respectively
It is scheduled in the hole of two hollow housing opposite sides, the welding ends of the wolfram steel A processed and common steel B covers respectively
It is located in heating liner.
The present invention forms the one of positive connection by the atom phase counterdiffusion between isoelectric membrane face, local warming, fusion
Kind joint technology can carry out the seamless combination between same metal or dissimilar metal, high-intensitive, whole face engages, high-precision ensures,
Deflection is small, non-environmental-pollution.With the advantages such as easy to operate, power consumption is few, production efficiency is high.
Detailed description of the invention:
Attached drawing 1 is main view of the present invention；
Attached drawing 2 is A-A cross-sectional view of the present invention.
Specific embodiment:
See attached drawing 1~2, a kind of processing method of tungsten carbide tipped tool is using Patent No. " 201811600482.9 ", patent name
" vacuum atom is brazed diffusion facilities ", under given conditions, passes through special fixture connecing to processed wolfram steel and common steel
Touching region is brazed.
The specified conditions are as follows: in the welding process, to wolfram steel A and common steel B apply pulse high current (1KA~
30KA) and certain pressure (50N~5000N), (vacuum degree: 5X10 then is welded in high vacuum environment0Pa~1X10- 2Pa), total time needed for wolfram steel Product jointing is in 2~10min.
The special fixture is made of housing 1, heating liner 2, and two hollow upper and lower opposite heating liners 2 divide
It is not fixed in the hole of two hollow 1 opposite sides of housing, the welding ends of the wolfram steel A processed and common steel B
It is respectively sleeved in heating liner 2.
When using the present invention, the wolfram steel A for needing to weld in special fixture will be put into and common steel B is put into Patent No.
" 201811600482.9 ", patent name be on the workbench of " vacuum atom be brazed diffusion facilities ", according to design requirement,
The contact surface of wolfram steel A and common steel B, impose welding filler metal.In the welding process, pulse is applied to wolfram steel A and common steel B
High current (1KA~30KA) and certain pressure (50N~5000N), then welded in high vacuum environment (vacuum degree:
5X100Pa~1X10-2Pa), total time needed for wolfram steel Product jointing is in 2~10min.
Claims (3)
1. a kind of processing method of tungsten carbide tipped tool, it is characterised in that: apply Patent No. " 201811600482.9 ", patent name
For " vacuum atom be brazed diffusion facilities ", under given conditions, by special fixture to processed wolfram steel and common steel
Contact area is brazed.
2. a kind of processing method of tungsten carbide tipped tool according to claim 1, it is characterised in that: the specified conditions are as follows:
In the welding process, to wolfram steel A and common steel B apply pulse high current (1KA~30KA) and certain pressure (50N~
5000N), (vacuum degree: 5X10 then is welded in high vacuum environment0Pa~1X10-2Pa), when total needed for wolfram steel Product jointing
Between in 2~10min.
3. a kind of processing method of tungsten carbide tipped tool according to claim 1, it is characterised in that: the special fixture is by outer
Set, heating liner composition, two hollow upper and lower opposite heating liners are separately fixed at two hollow housing opposite sides
Hole in, the welding ends of the wolfram steel A that is processed and common steel B are respectively sleeved in heating liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499567.0A CN110170718A (en) | 2019-06-11 | 2019-06-11 | A kind of processing method of tungsten carbide tipped tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499567.0A CN110170718A (en) | 2019-06-11 | 2019-06-11 | A kind of processing method of tungsten carbide tipped tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110170718A true CN110170718A (en) | 2019-08-27 |
Family
ID=67698143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910499567.0A Pending CN110170718A (en) | 2019-06-11 | 2019-06-11 | A kind of processing method of tungsten carbide tipped tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110170718A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732767A (en) * | 2019-11-25 | 2020-01-31 | 宜兴市鼎锋模具制造有限公司 | kinds of hardware tools made up of tungsten steel and high-speed steel and their production |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922154A (en) * | 2012-11-29 | 2013-02-13 | 西安科技大学 | Soldering/diffusion welding hybrid welding method for cemented carbide and alloy steel |
| CN103722197A (en) * | 2013-12-24 | 2014-04-16 | 无锡雨田精密工具有限公司 | Tungsten-steel welding spade drill |
| CN203649434U (en) * | 2013-12-24 | 2014-06-18 | 无锡雨田精密工具有限公司 | Tungsten steel welding flat drill |
| CN108927598A (en) * | 2018-08-19 | 2018-12-04 | 廖思凡 | Vacuum atom welds diffusion facilities |
-
2019
- 2019-06-11 CN CN201910499567.0A patent/CN110170718A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922154A (en) * | 2012-11-29 | 2013-02-13 | 西安科技大学 | Soldering/diffusion welding hybrid welding method for cemented carbide and alloy steel |
| CN103722197A (en) * | 2013-12-24 | 2014-04-16 | 无锡雨田精密工具有限公司 | Tungsten-steel welding spade drill |
| CN203649434U (en) * | 2013-12-24 | 2014-06-18 | 无锡雨田精密工具有限公司 | Tungsten steel welding flat drill |
| CN108927598A (en) * | 2018-08-19 | 2018-12-04 | 廖思凡 | Vacuum atom welds diffusion facilities |
| CN109676231A (en) * | 2018-08-19 | 2019-04-26 | 东莞市大为工业科技有限公司 | Vacuum atom is brazed diffusion facilities |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110732767A (en) * | 2019-11-25 | 2020-01-31 | 宜兴市鼎锋模具制造有限公司 | kinds of hardware tools made up of tungsten steel and high-speed steel and their production |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190827 |
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| RJ01 | Rejection of invention patent application after publication |