CN101380751A - Diamond composite crystal combination lockable four-side knife and manufacture method thereof - Google Patents
Diamond composite crystal combination lockable four-side knife and manufacture method thereof Download PDFInfo
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- CN101380751A CN101380751A CNA2008102014840A CN200810201484A CN101380751A CN 101380751 A CN101380751 A CN 101380751A CN A2008102014840 A CNA2008102014840 A CN A2008102014840A CN 200810201484 A CN200810201484 A CN 200810201484A CN 101380751 A CN101380751 A CN 101380751A
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Abstract
The present invention relates to a polycrystalline diamond compact lockable tetrahedral knife and a manufacturing method thereof. The method comprises the steps as follows: hard alloy is used as a bottom lining; the bottom lining is covered with diamond micro mist; the diamond micro mist and the hard alloy are sintered and combined together under high temperature and high pressure to be made into polycrystalline diamond compact; the polycrystalline diamond compact is cut into a tetrahedron by wire cutting or laser; the cut tetrahedron is carried out accurate grinding and made into the lockable tetrahedral knife. The present invention changes the complexity of the traditional welding manufacture, the welding type can only be used for single side and replace a pure hard alloy cutting tool, and the present invention improves the service life and the processing speed greatly. The present invention overcomes the disadvantages that PCD is hard to be processed into various shapes and to be fixed, and only single side can be used. The present invention uses using a centre hole screw to fix, ensures that the polycrystalline compact diamond lockable tetrahedral knife can be used for cutting as the tetrahedral knife in processing work and improves the effective usability of PCD. The present invention changes the traditional welding method, is fixed by the screw and is convenient and fast.
Description
Technical field
The present invention relates to a kind of diamond composite crystal combination lockable four-side knife manufacture method, belong to technical field of tools.
Background technology
The compound glomerocryst of diamond is used more and more widely at modern industry, can be made into various cutter, abrasion performance part, conducting strip or the like, because the diamond compact self character is superhard, be difficult to be processed into different shape and fixed, so tradition is all fixed with welding method, its defective is to use single face, size decreases after the reconditioning, the form accuracy variation is controlled by temperature also during welding, controls bad composite sheet scrappage as temperature and improves.
Because these defectives of the compound glomerocryst of diamond, at some manufacture fields such as screw-on cutter, milling cutter, plain milling cutter, three-dimensional milling cutter or the like, can only make cutter with carbide alloy, but poor nearly 100 times more than than PCD of carbide alloy wearabilities, so the cutter industry will consume a large amount of carbide alloy (energy is fewer and feweri).
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art structure, the invention provides a kind of diamond composite crystal combination lockable four-side knife and manufacture method.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of diamond composite crystal combination lockable four-side knife and manufacture method,
The material that the present invention is composited with a kind of diamond and carbide alloy is made and can be locked four sides cutter preparation method.Diamond is done end liner with carbide alloy, makes with this material and can lock four sides cutter employing step:
1. do end liner with carbide alloy, cover diadust on the end liner, diadust and sintering cemented carbide are combined, make the compound glomerocryst of diamond with HTHP;
2. with line cutting or laser the compound glomerocryst of diamond is cut into tetragonal body;
3. the tetrahedron correct grinding after will cutting is made and can be locked the four sides cutter.
A kind of diamond composite crystal combination lockable four-side knife, structure are that compound glomerocryst layer of diamond and hard alloy layer are combined as a whole, and the compound glomerocryst bed thickness of diamond is 0.4～0.6mm, and the carbide alloy bed thickness is 1.2～2.8mm.
It is loaded down with trivial details that the present invention changes the traditional welding making, and solder type can only and replace pure hard alloy cutter with single face, improves service life and process velocity greatly.
Beneficial effect of the present invention is specific as follows: advantage of the present invention is to have overcome PCD to be difficult to be processed into different shape and the fixing defective that can only use single face, uses centre bore screw fixing means:
1。It can be cut by the four sides cutter in processing work, improve effective use ability of PCD.
2。Change traditional welding method, fix with screw, not only convenient but also quick.
3。Traditional milling cutter industry in the past PCD can't use at all, and can only use carbide alloy, can replace carbide alloy by the four sides cutter now, the cost that improves processing life-span and modern automatic machine tool reduces.
Description of drawings
The structure chart of Fig. 1 diamond composite crystal combination lockable four-side knife;
Fig. 2 shape becomes six face (band circular arc).
The specific embodiment
A kind of diamond composite crystal combination lockable four-side knife and manufacture method contain as follows in steps:
Step 1: its architectural feature of the compound glomerocryst of diamond (PCD) is, with diadust (granularity 8-10um) hard alloy layer 2 is done end liner in HTHP (1673 ℃ of temperature, pressure 7.7GPa) under, diamond layer 1 is firmly combined with hard alloy layer 2, this compound polycrystalline diamond layer 1 is thick to be 0.4～0.6mm, and hard alloy layer 2 is thick to be 1.2～2.8mm;
Step 2: the compound glomerocryst of diamond that step 1 is obtained cuts or laser cutting method with line, be cut into the diamond composite crystal combination lockable four-side knife of design size, be of a size of 9.8*9.8*1.6 (the wide * of long * is thick) or 9.8*9.8*2.0 (the wide * of long * is thick) or 9.8*9.8*3.2 (the wide * of long * is thick) mm, the centre bore of centre bore ∮ 3～6mm, shape becomes six face, and four angles on plane have circular arc; There is angle the plane of diamond composite crystal combination lockable four-side knife and side less than 90 degree.
Step 3: the accurate dimension of the PCD of well cutting being used the grinding machine rubbing down.
Claims (4)
1, a kind of diamond composite crystal combination lockable four-side knife and manufacture method is characterized in that adopting step:
Step 1, do end liner, cover diadust on the end liner, diadust and sintering cemented carbide are combined, make the compound glomerocryst of diamond with HTHP with carbide alloy;
Step 2, the compound glomerocryst of diamond is cut into tetragonal body with line cutting or laser;
Step 3, the correct grinding of the tetrahedron after will cutting are made and can be locked the four sides cutter.
2, a kind of diamond composite crystal combination lockable four-side knife according to claim 1 and manufacture method, it is characterized in that with diadust granularity 8-10um, carbide alloy is done end liner 1673 ℃ of temperature, under the pressure 7.7GPa, diamond is firmly combined with carbide alloy, compound polycrystalline diamond bed thickness is 0.4～0.6mm, and the carbide alloy bed thickness is 1.2～2.8mm;
PCD is cut into design size with line cutting or laser cutting method, four sides cutter size 9.8*9.8*1.6,2.0,3.2mm, the centre bore of centre bore ∮ 3～6, shape becomes six face band circular arc.
3, a kind of diamond composite crystal combination lockable four-side knife is characterized in that structure is that compound glomerocryst layer of diamond and hard alloy layer are combined as a whole, and the compound glomerocryst bed thickness of diamond is 0.4～0.6mm, and the carbide alloy bed thickness is 1.2～2.8mm.
4, a kind of diamond composite crystal combination lockable four-side knife according to claim 3, it is characterized in that being of a size of 9.8*9.8*1.6 or 9.8*9.8*2.0 or 9.8*9.8*3.2mm, the centre bore of centre bore ∮ 3～6mm, shape becomes six face, and four angles on plane have circular arc; There is angle the plane of diamond composite crystal combination lockable four-side knife and side less than 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102014840A CN101380751A (en) | 2008-10-21 | 2008-10-21 | Diamond composite crystal combination lockable four-side knife and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102014840A CN101380751A (en) | 2008-10-21 | 2008-10-21 | Diamond composite crystal combination lockable four-side knife and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101380751A true CN101380751A (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102014840A Pending CN101380751A (en) | 2008-10-21 | 2008-10-21 | Diamond composite crystal combination lockable four-side knife and manufacture method thereof |
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| CN (1) | CN101380751A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658605A (en) * | 2012-05-02 | 2012-09-12 | 厦门钨业股份有限公司 | Manufacturing method of super-hard material high-wear-resistance precision support frame/block |
| CN104148686A (en) * | 2014-08-01 | 2014-11-19 | 河南富耐克超硬材料股份有限公司 | Ultrahard material clad sheet and substrate thereof |
-
2008
- 2008-10-21 CN CNA2008102014840A patent/CN101380751A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658605A (en) * | 2012-05-02 | 2012-09-12 | 厦门钨业股份有限公司 | Manufacturing method of super-hard material high-wear-resistance precision support frame/block |
| CN102658605B (en) * | 2012-05-02 | 2015-05-20 | 厦门钨业股份有限公司 | Manufacturing method of super-hard material high-wear-resistance precision support frame/block |
| CN104148686A (en) * | 2014-08-01 | 2014-11-19 | 河南富耐克超硬材料股份有限公司 | Ultrahard material clad sheet and substrate thereof |
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Open date: 20090311 |