CN103691957A - Production method for hard alloy cutter workblank - Google Patents
Production method for hard alloy cutter workblank Download PDFInfo
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- CN103691957A CN103691957A CN201310736379.8A CN201310736379A CN103691957A CN 103691957 A CN103691957 A CN 103691957A CN 201310736379 A CN201310736379 A CN 201310736379A CN 103691957 A CN103691957 A CN 103691957A
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- hard alloy
- alloy cutter
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- manufacture method
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Abstract
The invention relates to a production method for a gradient hard alloy cutter workblank. The production method includes the following steps: 1), milling hard alloy powder in different types including YG6X, YG10 and YG15 by a ball mill; 2), filling pelletized materials into a mold cavity in a layering mode; 3), stripping a mold after compression molding of the filled powder to acquire a semi-finished product; 4), sintering the semi-finished product in vacuum. By the production method, service life of cutters can be prolonged, and production yield of the cutters is improved.
Description
Technical field
The present invention relates to a kind of cutter for manual or machining, particularly a kind of manufacture method of hard alloy cutter blank.
Background technology
Hard alloy cutter has accounted for cutter leading position at present, and the hardness of carbide alloy can reach HRA 85-93,5; Red hardness is 800 ℃ one 1000 ℃.Carbide alloy is than the high-speed steel machining to superalloy preferably.The material of hard alloy cutter mainly comprises W-Co kind, tungsten titanium cobalt class, tungsten tantalum cobalt class and tungsten titanium tantalum cobalt class, in each class, there are a plurality of different trades mark, the mode of employing prior powder metallurgy is manufactured the cutter of single material, is often difficult to accomplish to manufacture the comprehensive of processability and serviceability.There is different cutting abilities and cutting object; Carbide rotary tool is as a kind of conventional machining tool, it requires cutting edge roundness hardness to want high to obtain high service life, require to be again convenient to weld with handle of a knife, traditional rotary file cutter can only select YG8 carbide alloy to produce after comprehensive above condition simultaneously.
Summary of the invention
The manufacture method that the object of this invention is to provide a kind of hard alloy cutter blank, can utilize the layers of material of heterogeneity or different brackets to manufacture cutter, improves cutter life, improves again the fabrication yield of cutter simultaneously.
The present invention includes following steps:
1) cemented carbide powder of YG6X, YG10, tri-kinds of different trades mark of YG15 is carried out respectively to ball milling;
2) layers of material after granulating is inserted in die cavity;
3), by the demoulding after the stamping of powder moulding of filling, obtain semi-finished product;
4) semi-finished product are carried out under vacuum state to sintering.
The manufacture method of described hard alloy cutter, it further designs and is: the volume ratio that is filled in the described three kinds of cemented carbide powders in die cavity is followed successively by 1:1.5:4.
The manufacture method of described hard alloy cutter, it further designs and is: described half-finished sintering temperature is 1380 ℃-1420 ℃; Sintering time is 30-60 minute.
The manufacture method of described hard alloy cutter, it further designs and is: it is 0.6-1.5um that above-mentioned three kinds of cemented carbide powders are milled to granularity.
Above-mentioned cemented carbide powder can be at least one in the cemented carbide powder of W-Co kind, tungsten tantalum cobalt class and tungsten titanium tantalum cobalt class; The forming agent mixing is butylbenzene, a kind of along in fourth or SBS.The alloy cutter that adopts the method to make, is mainly divided into three layers, and one deck is both weld layers of basic unit, when cutter is manufactured and 45# steel knife handle carry out brazing.Middle one deck is transition zone, during this laminated gold plays and the effect of the nature difference of levels.One deck is working lining in addition, and this layer can be polished into cutting edge; Phase counterdiffusion when sintering between three-layer alloy, form gradient transitional lay, transition zone makes between blade Ceng He basic unit alloy in transition in gradient in nature, based on this feature, we can select hardness and the better YG6X alloy of wearability as working lining alloy, select YG10 as intermediate layer alloy, select YG15 as the alloy of bottom welding.During fabrication, adopt and fill out powder for three times and carry out layering compacting, basic unit can adopt the relatively low material of price, and blade layer can adopt the material that price is relatively high, can reduce the manufacturing cost of Integral alloy cutter.
The specific embodiment
By the following examples the present invention is further described:
1) cemented carbide powder of three kinds of unlike materials is carried out respectively to ball milling, wherein a kind of is YG6X, and a kind of is YG10, and another kind is YG15, through grinding, cemented carbide powder granularity is ground to 0.6-1.5um;
2) in above-mentioned three kinds of cemented carbide powders, mix forming agent, forming agent is selected butadiene-styrene rubber solvent, and it is to adopt 120# industrial naptha to dissolve butadiene-styrene rubber, and rubber weight percent concentration is 11% ~ 13%.Stirring makes butadiene-styrene rubber solution fully mix with various alloy powders, final drying forms particle, the particle diameter of the particle of making is that 40-60 order (adopts granulator to granulate, then adopt grading oscillating screen to sieve, the meticulous continuation of granularity is granulated and is made it become large, and granularity is excessively thick carries out fragmentation and then granulation);
3) three kinds of materials after granulating are inserted in die cavity according to volume ratio 1:1.5:4 layering;
4), by the demoulding after the stamping of powder moulding of filling, obtain semi-finished product;
5) semi-finished product are carried out in vacuum drying oven to sintering, sintering temperature is 1380 ℃-1420 ℃; Sintering time is 30 minutes;
Product after sintering is cooled to room temperature, obtains gradient hard alloy rotary file cutter blank.
Above-mentioned hard alloy cutter is that to take the WC micron powder of high rigidity refractory metal be hard phase, the cobalt (Co) of take is Binder Phase, the performance of the ratio of hard phase and Binder Phase and the big or small alloy of hard-phase particles has significant impact, along with reducing of hard phase (WC) content, the bending strength of material significantly improves.Its weldability improves, and the residual stress after welding reduces, and weld crack reduces, and the cutter rate of manufacturing a finished product significantly improves.At cutter working lining, adopt more fine granularity, the YG6X of higher hard phase (WC) content, has improved cutter hardness and wearability, and be greatly improved cutter life.
The present invention is not limited to above-described embodiment; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection scope of the present invention.
Claims (4)
1. a manufacture method for hard alloy cutter blank, is characterized in that comprising the steps:
1) cemented carbide powder of YG6X, YG10, tri-kinds of different trades mark of YG15 is carried out respectively to ball milling;
2) layers of material after granulating is inserted in die cavity;
3), by the demoulding after the stamping of powder moulding of filling, obtain semi-finished product;
4) semi-finished product are carried out under vacuum state to sintering.
2. the manufacture method of hard alloy cutter blank according to claim 1, is characterized in that: the volume ratio that is filled in the described three kinds of cemented carbide powders in die cavity is followed successively by 1:1.5:4.
3. the manufacture method of hard alloy cutter blank according to claim 1, is characterized in that: described half-finished sintering temperature is 1380 ℃-1420 ℃; Sintering time is 30-60 minute.
4. the manufacture method of hard alloy cutter blank according to claim 1, is characterized in that: it is 0.6-1.5um that above-mentioned three kinds of cemented carbide powders are milled to granularity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310736379.8A CN103691957A (en) | 2013-12-29 | 2013-12-29 | Production method for hard alloy cutter workblank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310736379.8A CN103691957A (en) | 2013-12-29 | 2013-12-29 | Production method for hard alloy cutter workblank |
Publications (1)
| Publication Number | Publication Date |
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| CN103691957A true CN103691957A (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310736379.8A Pending CN103691957A (en) | 2013-12-29 | 2013-12-29 | Production method for hard alloy cutter workblank |
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| CN (1) | CN103691957A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566973A (en) * | 2016-10-14 | 2017-04-19 | 洛阳鼎威材料科技有限公司 | Preparation method for cutting tool composite |
| CN108277489A (en) * | 2018-03-30 | 2018-07-13 | 镇江东艺机械有限公司 | A kind of crosslinking PVD hard coats high speed cutting tool and manufacturing method |
Citations (6)
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|---|---|---|---|---|
| US4403015A (en) * | 1979-10-06 | 1983-09-06 | Sumitomo Electric Industries, Ltd. | Compound sintered compact for use in a tool and the method for producing the same |
| FR2542649A1 (en) * | 1983-03-19 | 1984-09-21 | Krupp Gmbh | Abrasion resistant metal-cermet composite |
| US20040141865A1 (en) * | 2002-09-18 | 2004-07-22 | Keshavan Madapusi K. | Method of manufacturing a cutting element from a partially densified substrate |
| CN1636654A (en) * | 2003-12-15 | 2005-07-13 | 山特维克公司 | Cemented carbide tool and method of making the same |
| CN101812621A (en) * | 2010-04-22 | 2010-08-25 | 株洲硬质合金集团有限公司 | Submicron hard alloy and preparation method |
| CN102434665A (en) * | 2011-09-15 | 2012-05-02 | 上海高更高实业有限公司 | Light gradient hard-alloy sealing ring and manufacture method thereof |
-
2013
- 2013-12-29 CN CN201310736379.8A patent/CN103691957A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4403015A (en) * | 1979-10-06 | 1983-09-06 | Sumitomo Electric Industries, Ltd. | Compound sintered compact for use in a tool and the method for producing the same |
| FR2542649A1 (en) * | 1983-03-19 | 1984-09-21 | Krupp Gmbh | Abrasion resistant metal-cermet composite |
| US20040141865A1 (en) * | 2002-09-18 | 2004-07-22 | Keshavan Madapusi K. | Method of manufacturing a cutting element from a partially densified substrate |
| CN1636654A (en) * | 2003-12-15 | 2005-07-13 | 山特维克公司 | Cemented carbide tool and method of making the same |
| CN101812621A (en) * | 2010-04-22 | 2010-08-25 | 株洲硬质合金集团有限公司 | Submicron hard alloy and preparation method |
| CN102434665A (en) * | 2011-09-15 | 2012-05-02 | 上海高更高实业有限公司 | Light gradient hard-alloy sealing ring and manufacture method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 叶伟昌: "层合硬质合金刀片", 《机械工程师》, 31 March 1990 (1990-03-31), pages 27 - 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566973A (en) * | 2016-10-14 | 2017-04-19 | 洛阳鼎威材料科技有限公司 | Preparation method for cutting tool composite |
| CN108277489A (en) * | 2018-03-30 | 2018-07-13 | 镇江东艺机械有限公司 | A kind of crosslinking PVD hard coats high speed cutting tool and manufacturing method |
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Application publication date: 20140402 |