CN102019424A - Method for manufacturing hard alloy numerical control blade - Google Patents
Method for manufacturing hard alloy numerical control blade Download PDFInfo
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- CN102019424A CN102019424A CN 201010506521 CN201010506521A CN102019424A CN 102019424 A CN102019424 A CN 102019424A CN 201010506521 CN201010506521 CN 201010506521 CN 201010506521 A CN201010506521 A CN 201010506521A CN 102019424 A CN102019424 A CN 102019424A
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Abstract
The invention discloses a method for manufacturing a hard alloy numerical control blade. The method comprises the following steps of: batching the following components in percentage by mass: 10 to 15 percent of hard phase titanium carbide, 6 to 8 percent of tantalum carbide, 4 to 6 percent of niobium carbide, 8 to 12 percent of cobalt, 0.2 to 1 percent of vanadium carbide and the balance of tungsten carbide; performing wet grinding, namely after mixing each component, performing wet grinding by using a tilting type wet grinding mill; forming, namely forming by performing vacuum stirring, drying, waxing, pelleting by using a roller and pressing by using an automatic press; performing vacuum sintering, namely performing vacuum sintering by gradient heating; and annealing to obtain a finished product. Due to the adoption of the technical scheme, the obtained numerical control blade product has high bending strength, impact toughness and an ideal service life of a cutter, and can reach a high cutting machining speed in the actually using process so as to improve the cutting machining efficiency, solve the problems that the cutter is easy to hit when a large-scale steel forging piece is roughly machined by the hard alloy cutter, the efficiency is low and the cutter has a short service life well, and break through the bottleneck of the machining.
Description
Technical field
The present invention relates to a kind of manufacture method of carbide numerical control blade.
Background technology
Along with the continuous development of Computerized Numerical Control processing technology, the working environment that cutter faced is complicated more, as cutting way from continuously to be interrupted, from the wet type to the dry type, from low speed to high speed etc., therefore also more and more higher to the performance requirement of cutter.Simultaneously, the carbide numerical control blade is the hart metal product of a class high-tech, high added value, it also is the focus of the advanced carbide alloy competition among enterprises in the world, the external at present advanced blade that CEMENTED CARBIDE PRODUCTION enterprise the produced overwhelming majority is the numerical control blade, and developed country's mechanical industry etc. has generally adopted carbide numerical control blade and kit thereof.
The carbide numerical control blade is mainly used in heavy cutting equipment such as automobile, motorcycle, large-scale alloy processing industry and preparation mechanical industry.Because large-scale alloy forged piece roughing machining amount is big, difficult processing is easily forged a knife during the large-scale steel forgings of roughing, and efficient is low, and cutter life is short, is the manufacturing bottleneck of weight equipment.
Summary of the invention
Technical problem to be solved by this invention provides a kind of manufacture method of carbide numerical control blade, existing very high bending strength of products obtained therefrom and impact flexibility, desirable cutter life is arranged again, preferably resolve the large-scale steel forgings of hard alloy cutter roughing and easily forge a knife, the problem that efficient is low and cutter life is short.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the manufacture method of carbide numerical control blade may further comprise the steps:
A, batching: according to the mass percent of following component: hard phase titanium carbide 10～15%, ramet 6～8%, niobium carbide 4～6%, cobalt 8～12%, vanadium carbide 0.2～1%, surplus is a tungsten carbide;
B, wet-milling: each component is mixed the back adopt the wet-milling of tilting-type wet milk;
C, moulding: go into wax, cylinder granulation, mo(u)ldenpress compression moulding by the vacuum stirring drying;
D, vacuum-sintering: vacuum gradient intensification sintering;
E, temper promptly obtain finished product.
As preferably, described batching is according to the mass percent of following component: hard phase titanium carbide 10%, ramet 6%, niobium carbide 4%, cobalt 8%, vanadium carbide 0.2%, tungsten carbide 71.8%.
As preferably, described batching is according to the mass percent of following component: hard phase titanium carbide 15%, ramet 8%, niobium carbide 6%, cobalt 12%, vanadium carbide 1%, tungsten carbide 58%.
As preferably, described batching is according to the mass percent of following component: hard phase titanium carbide 12%, ramet 7%, niobium carbide 5%, cobalt 10%, vanadium carbide 0.8%, tungsten carbide 65.2%.
As preferably, the wet-milling time is 50～60 hours in the described wet-milling step, and ratio of grinding media to material 5: 1, wet grinding media are absolute ethyl alcohols.
As preferably, described vacuum-sintering step adopts 300～470 ℃, and 470～1250 ℃, 1250～1350 ℃ of three sections stageds heat up, and sintering pressure is 6Mpa.Heat up very slowly 300～470 ℃ of employings, get rid of forming agent; And be warming up to sintering temperature subsequently, and feed the high pressure argon gas and carry out low pressure sintering, guaranteed that forming agent removes with material is densified to combine fully with each constituent element of material.
The present invention is owing to adopted technique scheme, existing very high bending strength of gained numerical control blade product and impact flexibility, desirable cutter life is arranged again, in actual use, can reach high machining speed, thereby improve machining efficient, preferably resolve the large-scale steel forgings of hard alloy cutter roughing and easily forge a knife, efficient is hanged down the problem short with cutter life, has broken through the bottleneck of such processing.
The specific embodiment
The manufacture method of carbide numerical control blade may further comprise the steps:
A, batching: according to the mass percent of following component: hard phase titanium carbide 10～15%, ramet 6～8%, niobium carbide 4～6%, cobalt 8～12%, vanadium carbide 0.2～1%, surplus is a tungsten carbide;
B, wet-milling: each component is mixed the back adopt the wet-milling of tilting-type wet milk, adopt the tilting-type ball mill to obtain the mixed-powder that has good uniformity, the wet-milling time is 50～60 hours in the described wet-milling step, and ratio of grinding media to material 5: 1, wet grinding media are absolute ethyl alcohols;
C, moulding: go into wax, cylinder granulation by the vacuum stirring drying, mo(u)ldenpress compression moulding obtains mobile extraordinary compound particle by the cylinder granulation;
D, vacuum-sintering: vacuum gradient intensification sintering, described vacuum-sintering step adopts 300～470 ℃, and 470～1250 ℃, 1250～1350 ℃ of three sections stageds heat up, and sintering pressure is 6Mpa;
E, temper promptly obtain finished product.
Embodiment one: described batching is according to the mass percent of following component: hard phase titanium carbide 10%, ramet 6%, niobium carbide 4%, cobalt 8%, vanadium carbide 0.2%, tungsten carbide 71.8%.
Embodiment two: described batching is according to the mass percent of following component: hard phase titanium carbide 15%, ramet 8%, niobium carbide 6%, cobalt 12%, vanadium carbide 1%, tungsten carbide 58%.
Embodiment three: described batching is according to the mass percent of following component: hard phase titanium carbide 12%, ramet 7%, niobium carbide 5%, cobalt 10%, vanadium carbide 0.8%, tungsten carbide 65.2%.
The material capability of the manufacture method gained numerical control blade product of carbide numerical control blade of the present invention reaches: density: 10.6g/cm
3, hardness: 〉=92HRA, cross-breaking strength: 〉=2600Mpa, alloy tungsten carbide crystal grain degree :≤0.8 μ m, porosity: A04 B00 C00.
The carbide numerical control blade has high rigidity, high-intensity " two high " performance, in use shows as high-wearing feature and red hardness.Have the hardness height, wearability is good, and the low characteristics of cost.
For making product have high rigidity, high-intensity " two high " performance, pass through ball grinding technique, promptly adopt the following raw material of tungsten-carbide powder granularity≤0.8 μ m to prepare burden, long-time ball milling and vacuum drying by 50～60 hours add ceroplastic, and after the sintering final temperature reduce between 1390～1470 ℃ and choose, obtain the ultra-fine grain tungsten-carbide powder, make alloy microscopic structure tungsten carbide crystal grain degree reach ultra-fine by adding the vanadium carbide grain growth inhibitor, obtain the ultra-fine cemented carbide material.
The cutting steel are used P class P01～P40 serial carbide alloy mostly in the existing material, the products characteristics of this cutter material is: the bending strength that is used for rough machined P30～P40 series is higher, shock resistance is good and red hardness is very poor, be used for fine finishining, semi-finished P01～P20 series of products hardness height, red hardness is good and bending strength is low.Number of patent application be 200910099621.9 and 200910099620.4 described polynary P series hard alloys as the blade material, the existing very high bending strength of product, good impact flexibility, again good red hardness arranged.The present invention further improves prescription, the technology of preparing of improving compound and adjustment low pressure sintering technology on this basis and comes obtained performance better sintering finished.
From the microstructure aspect of product, by long-time rolling ball milling with add inhibitor, suitably reduce final sintering temperature with the solid solution pellet size in the control microscopic structure, make product have favorable shock resistance and red hardness preferably.
Claims (6)
1. the preparation method of carbide numerical control blade is characterized in that: may further comprise the steps:
A, batching: according to the mass percent of following component: hard phase titanium carbide 10～15%, ramet 6～8%, niobium carbide 4～6%, cobalt 8～12%, vanadium carbide 0.2～1%, surplus is a tungsten carbide;
B, wet-milling: each component is mixed the back adopt the wet-milling of tilting-type wet milk;
C, moulding: go into wax, cylinder granulation, mo(u)ldenpress compression moulding by the vacuum stirring drying;
D, vacuum-sintering: vacuum gradient intensification sintering;
E, temper promptly obtain finished product.
2. according to the preparation method of the described carbide numerical control blade of claim 1, it is characterized in that: described batching is according to the mass percent of following component: hard phase titanium carbide 10%, ramet 6%, niobium carbide 4%, cobalt 8%, vanadium carbide 0.2%, tungsten carbide 71.8%.
3. according to the preparation method of the described carbide numerical control blade of claim 1, it is characterized in that: described batching is according to the mass percent of following component: hard phase titanium carbide 15%, ramet 8%, niobium carbide 6%, cobalt 12%, vanadium carbide 1%, tungsten carbide 58%.
4. according to the preparation method of the described carbide numerical control blade of claim 1, it is characterized in that: described batching is according to the mass percent of following component: hard phase titanium carbide 12%, ramet 7%, niobium carbide 5%, cobalt 10%, vanadium carbide 0.8%, tungsten carbide 65.2%.
5. according to the preparation method of the described carbide numerical control blade of claim 1, it is characterized in that: the wet-milling time is 50～60 hours in the described wet-milling step, and ratio of grinding media to material 5: 1, wet grinding media are absolute ethyl alcohols.
6. according to the preparation method of the described carbide numerical control blade of claim 1, it is characterized in that: described vacuum-sintering step adopts 300～470 ℃, and 470～1250 ℃, 1250～1350 ℃ of three sections stageds heat up, and sintering pressure is 6MPa.
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| CN 201010506521 CN102019424A (en) | 2010-10-14 | 2010-10-14 | Method for manufacturing hard alloy numerical control blade |
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| CN 201010506521 CN102019424A (en) | 2010-10-14 | 2010-10-14 | Method for manufacturing hard alloy numerical control blade |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965558A (en) * | 2012-11-20 | 2013-03-13 | 福建金鑫钨业股份有限公司 | Method for industrial production of high-property ultra-fine crystal extruded bar material |
| CN103182511A (en) * | 2013-03-29 | 2013-07-03 | 浙江恒成硬质合金有限公司 | Production method for ultrafine particle copper tube stretching mould |
| CN103944039A (en) * | 2014-04-16 | 2014-07-23 | 宁海县雁苍山电力设备厂 | Fast wiring device easy and convenient to use |
| CN104032153A (en) * | 2014-06-06 | 2014-09-10 | 河源正信硬质合金有限公司 | Production method of high-toughness microcrystal hard alloys |
| CN105364076A (en) * | 2015-11-06 | 2016-03-02 | 哈尔滨东安利峰刀具有限公司 | Manufacturing technology of replaceable tool made of hard alloy |
| CN116573939A (en) * | 2023-07-07 | 2023-08-11 | 有研工程技术研究院有限公司 | Tungsten carbide material for high-performance wedge welding chopper and production method thereof |
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| JPH0222438A (en) * | 1988-07-12 | 1990-01-25 | Mitsubishi Metal Corp | End mill made of tungsten carbide-base sintered hard alloy having excellent chipping resistance |
| JP2697187B2 (en) * | 1989-09-26 | 1998-01-14 | 三菱マテリアル株式会社 | Surface-coated tungsten carbide based cemented carbide cutting tool for cutting Ti and Ti alloys |
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| CN101591739A (en) * | 2009-06-11 | 2009-12-02 | 浙江恒成硬质合金有限公司 | A kind of preparation method of quinary P-type hard alloy |
| CN101624673A (en) * | 2009-08-14 | 2010-01-13 | 北京工业大学 | Industrialized preparation method of WC-Co hard alloy with low cost and high performance |
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2010
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Patent Citations (6)
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| JPH0222438A (en) * | 1988-07-12 | 1990-01-25 | Mitsubishi Metal Corp | End mill made of tungsten carbide-base sintered hard alloy having excellent chipping resistance |
| JP2697187B2 (en) * | 1989-09-26 | 1998-01-14 | 三菱マテリアル株式会社 | Surface-coated tungsten carbide based cemented carbide cutting tool for cutting Ti and Ti alloys |
| CN101397615A (en) * | 2008-11-04 | 2009-04-01 | 四川大学 | Method for preparing cemented carbides with nearly equiaxed WC crystal particle |
| CN101586204A (en) * | 2009-05-13 | 2009-11-25 | 长沙高新开发区鑫天超硬材料有限公司 | Tungsten carbide-titanium carbide-tantalum carbide-niobium carbide solid solution hard alloy |
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| CN101624673A (en) * | 2009-08-14 | 2010-01-13 | 北京工业大学 | Industrialized preparation method of WC-Co hard alloy with low cost and high performance |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102965558A (en) * | 2012-11-20 | 2013-03-13 | 福建金鑫钨业股份有限公司 | Method for industrial production of high-property ultra-fine crystal extruded bar material |
| CN102965558B (en) * | 2012-11-20 | 2015-01-07 | 福建金鑫钨业股份有限公司 | Method for industrial production of high-property ultra-fine crystal extruded bar material |
| CN103182511A (en) * | 2013-03-29 | 2013-07-03 | 浙江恒成硬质合金有限公司 | Production method for ultrafine particle copper tube stretching mould |
| CN103944039A (en) * | 2014-04-16 | 2014-07-23 | 宁海县雁苍山电力设备厂 | Fast wiring device easy and convenient to use |
| CN104032153A (en) * | 2014-06-06 | 2014-09-10 | 河源正信硬质合金有限公司 | Production method of high-toughness microcrystal hard alloys |
| CN104032153B (en) * | 2014-06-06 | 2016-09-07 | 河源正信硬质合金有限公司 | A kind of manufacture method of high tough crystallite hard alloy |
| CN105364076A (en) * | 2015-11-06 | 2016-03-02 | 哈尔滨东安利峰刀具有限公司 | Manufacturing technology of replaceable tool made of hard alloy |
| CN116573939A (en) * | 2023-07-07 | 2023-08-11 | 有研工程技术研究院有限公司 | Tungsten carbide material for high-performance wedge welding chopper and production method thereof |
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Application publication date: 20110420 |