CN1093453C - Manufacture of diamond film cutter and tool - Google Patents
Manufacture of diamond film cutter and tool Download PDFInfo
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- CN1093453C CN1093453C CN98111771A CN98111771A CN1093453C CN 1093453 C CN1093453 C CN 1093453C CN 98111771 A CN98111771 A CN 98111771A CN 98111771 A CN98111771 A CN 98111771A CN 1093453 C CN1093453 C CN 1093453C
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- cutlery
- diamond film
- cutter
- diamond
- matrix
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Abstract
The present invention relates to a method for manufacturing diamond film cutters and tools, which comprises the following steps that a diamond film is coated on a cutter base material in an integral mode; then, the diamond film is cut according to a tool bit shape and welded on a cutter body; or the base material is cut according to the needed tool bit shape, and then, spliced together for coating the diamond film; the coated tool bit is welded on the cutter body, and a diamond film cutter or a tool is manufactured. The method has high technology stability. The cutter can be again ground for use after being abraded. The present invention is suitable for industrialized production.
Description
The present invention relates to the preparation method of a kind of diamond film cutter, instrument, be specifically related to cut into behind the CVD diamond film preparation method of cutter.
The conventional method of manufacturing diamond film cutter is open already, is blade to be used to be placed directly in after treatment apply diamond coated film in the stove, directly uses then.As list of references: 1.N.kikuchi, H.eto, T.okamura and H.Yoshjmura, Applications ofDiamend Films and Related Material. (c) Eleselier SciencePublishers B V, 1991; 2.Michael Seal, Applications of Diamond Films and Related Materials.Third International Conference 1995.
The described method of these articles is because following shortcoming makes the production of diamond film cutter, use be restricted.1. be difficult in even diamond coated film on the sharp cutting edge of blade, because on sharp cutting edge, be difficult to carry out the work of treatment before the diamond coated film, such as grinding, cause sharp cutting edge owing to not finely carry out pre-treatment and be difficult for coating with bortz powder; Also because coating is gases used flows in the coating stove fast, the edge effect meeting that causes at sharp cutting edge place makes in the coating at cutting edge place very difficult; In addition, also be difficult to control cutting edge temperature uniformity during coating, and uneven Temperature Distribution can not be applied evenly.2. its thickness of diamond coated film is difficult to grasp on the sharp cutting edge of cutter, can make the cutting edge rust and limits the scope of application of cutter.3. the diamond film cutter cutting edge that directly applies can't polish, and makes the in use easily sticking cutter of cutter, influences the use of cutter.4, directly the blade that applies is whole the coating, and utilization rate is low, and production efficiency is low.5, directly the blade that applies can only disposablely use.
The objective of the invention is to overcome the deficiency of above-mentioned prior art, a kind of method is provided, only apply, and need not to apply other face at cutting edge roundness.
The preparation method of diamond cutter of the present invention comprises: CVD is diamond coated on cutlery matrix, by required cutter head shape cutting; Perhaps will be combined into one substantially by the cutlery matrix of cutter head shape well cutting and carry out the diamond coated film of CVD again; Polish cutter head diamond film face then; Be welded on the cutter hub, use the knife sharpener refine.
Do the coating pre-treatment that causes on the cutlery matrix of sheet like this, for example become very simple with bortz powder abrasive knife stromal surface, applying caused edge effect influence at point of a knife cutting edge place has not existed, the temperature control when applying of large stretch of cutlery matrix is very easy to, and these 3 extremely important to diamond coated film.
Fig. 1 is the embodiment sketch that the present invention prepares lathe tool.
Fig. 2 is the embodiment sketch that the present invention prepares milling cutter.
Fig. 3 is the embodiment sketch that the present invention prepares milling cutter.Wherein: 101 refer to the cutlery matrix of diamond coated film; The cutter grain that 102 fingers have cut; 103 refer to completed diamond thin lathe tool.201 refer to the cutlery matrix of diamond coated film; The blade that 202 fingers have cut; 203 refer to completed diamond book film milling cutter.301 refer to the cutlery matrix of diamond coated film; The blade that 302 fingers have cut; 303 refer to completed diamond book film milling cutter.
Using more in the cutlery matrix of diamond coated film is carbide alloy, iron and steel class etc., by Thermal coefficient of expansion in these materials is bigger several times than diamond, when applying from the temperature more than 700 ℃ Degree drops in the room temperature process, because the impact of thermal stress if diamond film is thicker, then easily comes off Or affect result of use; If the too thin positive effect that does not then have diamond to bring of diamond film, therefore The preferred 1-100 micron of diamond film thickness of the present invention, more preferably 5-50 micron.
When cutlery matrix applies the CVD diamond thin, the surface configuration of matrix there is not special limit System for example can be plane, sphere, cylinder or other shape. This has just greatly expanded of the present invention Range of application. The surface of diamond coated film both can be used as the rake face of cutter, after also can be used as Knife face as long as guarantee on the cutting edge diamond film is arranged, utilizes These characteristics can manufacture Buddha's warrior attendant Stone film lathe tool, milling cutter, forming tool, drill bit etc.
Many methods with CVD all can be at the diamond coated film of cutlery stromal surface, before coating All to carry out preliminary treatment to the cutlery stromal surface. The characteristics of DC arc plasma jet method are to apply Hurry up, can reach 40 microns/hour, coating is combined with matrix well, and coating integral body is more even, but The difficult control of cutlery substrate temperature. The applicant finds the excellent of used coating processes through long term test Select parameter: gas is selected hydrogen, and argon gas, methane, methane/hydrogen are at 1%-3%, and application temperature is 700 ℃-950 ℃, apply pressure 1KP-10KP.
In addition, the characteristics of heated filament CVD are that the skin temperature of cutlery matrix is better controlled, and coating is even.So the applicant has also carried out heated filament CVD test, the preferred parameter that finds is: apply speed and be the 5-20 micron/hour, 700 ℃-900 ℃ of application temperature, apply pressure 2KP-8KP, bias current is 0.1-0.4A/cm2, and gases used is hydrogen, methane, methane/hydrogen are 1%-3% (flow-rate ratio).
As previously mentioned, diamond film cutter manufacture method of the present invention has been compared tangible advantage with conventional method, behind the diamond coated film of cutlery stromal surface, generally cut into required cutter head shape with laser instrument, laser beam is generally 0.1 millimeter to the diamond thin ablation width at joint-cutting place.Under the thin situation of diamond thin, available electric spark cutting, film impaired width in cut place is much smaller.To the cutter head polishing, cutter head is welded or bonds on the cutter hub then, with the knife sharpener finishing, grind off the impaired part of diamond thin again, so just finish diamond film cutter.
The inventive method is compared with direct diamond coated film cutter method, has avoided the shortcoming that cutting edge is difficult to apply, and utilizes diamond thin coating equipment efficient height, the cutlery stromal surface is handled easily, film and matrix are combined, and in use film does not come off, and re-use after can refacing.Stable production process, the cutting edge roundness of producing is sharp, the processing work surface roughness can reach 0.08 micron, processing cutting on same production line, the hard alloy cutter durability that tool life applies than the end improves tens times to tens times, and (machined material is harder, cutting speed is bigger, multiple is bigger), verified that fully the method that the present invention makes diamond film cutter is very desirable and practical, moreover can reface after the wearing and tearing of the diamond film cutter of manufacturing of the present invention, these are different fully with direct diamond coated film cutter, and the latter can only disposablely use.
The present invention is described in detail below in conjunction with embodiment:
Embodiment 1: the manufacturing of diamond thin lathe tool.
Cutlery matrix: 30 * 3 millimeters of YG6 carbide wafer: ￠
Pre-treatment: acid removes cobalt, and 40 micron diamond powder grind, and ultrasonic wave cleans.
Coating processes: direct current plasma gunite, methane/hydrogen=2.8%, 940 ℃ of application temperature, pressure 9KP, 40 microns of thickness.
Coming disk is cut into right-angle side with laser is 4.5 millimeters isosceles right triangle, and polishing is welded on the cutter hub, and diamond thin with the knife sharpener finishing, is promptly made the diamond thin lathe tool, as Fig. 1 at rake face.
Cut alusil alloy with this lathe tool on production line, same machined parameters: processing work is 22 times of YG6 hard alloy cutter.
Embodiment 2: the manufacturing of diamond thin milling cutter.
Cutlery matrix: YG6 carbide wafer, 60 * 5 millimeters of ￠.
Pre-treatment: acid removes cobalt, and 20 micron diamond powder grind ultrasonic wave and clean.
Coating processes: direct current plasma gunite, methane/hydrogen=1.2%, 750 ℃ of application temperature, pressure 2KP, 18 microns of thickness.
Congratulate the rectangular sheet that sheet is cut into 6 millimeters of long 24 mm wides with the laser beam handle, be welded on the cutter hub, diamond thin with the knife sharpener finishing, is promptly made the diamond thin milling cutter, as Fig. 2 at rake face.
With this milling cutter cutting processing workpiece on production line, same machined parameters, processing quantity is 18 times of YG6 carbide-tipped milling cutter.
Embodiment 3: the manufacturing of diamond thin milling cutter.
Cutlery matrix: YG6 carbide alloy, shape are seen Fig. 3-301.
Pre-treatment: acid removes cobalt, and 10 micron diamond powder grind, and ultrasonic wave cleans.Coating processes: heated filament CVD method, methane/hydrogen=1.5%, pressure 5KP, 800 ℃ of application temperature, bias current 0.2A/cm2,8 microns of thickness.
,, as Fig. 3-302 cutting blade is welded on the cutter hub the cutting of the cutlery matrix of diamond coated film with electric spark, rake face does not have diamond thin, and back knife face has diamond thin, promptly makes the diamond thin milling cutter, as Fig. 3-303.
Claims (4)
1. preparation method with the diamond film cutter, it may further comprise the steps:
(1) cutlery matrix is carried out preliminary treatment;
(2) on pretreated cutlery matrix, carrying out the coating of CVD diamond film, cut into cutlery again; Perhaps, again it is spliced into one and carries out the coating of CVD diamond film cutting through pretreated cutlery matrix; Wherein said pre-treatment step comprises: cutlery matrix is handled with acid, removed the top layer cobalt, grind with bortz powder, clean with ultrasonic wave; In described coating step, methane/hydrogen flowing quantity is than being 1%-3%, 700 ℃-950 ℃ of depositing temperatures, deposition pressure 1KP-10KP.
2. according to the process of claim 1 wherein that the thickness of described CVD diamond film is the 1-100 micron, described cutlery stromal thickness is the 1-100 millimeter.
3. according to the method for claim 2, wherein said diamond film thickness is the 5-50 micron.
4. according to claim 1,2 or 3 method, wherein said cutlery stromal surface shape or splicing rear surface are shaped as plane, sphere or cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111771A CN1093453C (en) | 1998-12-28 | 1998-12-28 | Manufacture of diamond film cutter and tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98111771A CN1093453C (en) | 1998-12-28 | 1998-12-28 | Manufacture of diamond film cutter and tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1258582A CN1258582A (en) | 2000-07-05 |
| CN1093453C true CN1093453C (en) | 2002-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98111771A Expired - Fee Related CN1093453C (en) | 1998-12-28 | 1998-12-28 | Manufacture of diamond film cutter and tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN1093453C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668923A (en) * | 2015-02-05 | 2015-06-03 | 深圳市誉和钻石工具有限公司 | Manufacturing method of diamond cutter |
| CN106984913B (en) * | 2017-05-13 | 2018-05-08 | 深圳光韵达激光应用技术有限公司 | A kind of full laser production method of diamond cutter |
| CN107962510B (en) * | 2017-12-05 | 2019-04-23 | 长沙理工大学 | A kind of preparation method of the orderly microstructured cvd diamond grinding wheel in surface |
| CN109266917A (en) * | 2018-09-19 | 2019-01-25 | 天津百恩威新材料科技有限公司 | A kind of diamond cutting plane and preparation method thereof |
| CN111910168B (en) * | 2020-06-19 | 2022-06-10 | 上海交通大学 | CVD diamond thick film-ceramic composite sheet brazing cutter and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819516A (en) * | 1988-01-07 | 1989-04-11 | Diamant Boart-Stratabit (Usa) Inc. | Method of forming a cutting element having a V-shaped diamond cutting face |
| US4848476A (en) * | 1980-03-24 | 1989-07-18 | Reed Tool Company | Drill bit having offset roller cutters and improved nozzles |
| CN1041187A (en) * | 1989-09-19 | 1990-04-11 | 北京市科学技术研究院 | The method of arc discharge chemical vapor deposition diamond film |
| CN1102220A (en) * | 1993-10-28 | 1995-05-03 | 北京科技大学 | Method for applying diamond film to hard alloy tool knife-edge |
| CN1102219A (en) * | 1993-10-28 | 1995-05-03 | 北京科技大学 | New process of chemical gas-phase deposition of diamond coating for hard alloy tool |
-
1998
- 1998-12-28 CN CN98111771A patent/CN1093453C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4848476A (en) * | 1980-03-24 | 1989-07-18 | Reed Tool Company | Drill bit having offset roller cutters and improved nozzles |
| US4819516A (en) * | 1988-01-07 | 1989-04-11 | Diamant Boart-Stratabit (Usa) Inc. | Method of forming a cutting element having a V-shaped diamond cutting face |
| CN1041187A (en) * | 1989-09-19 | 1990-04-11 | 北京市科学技术研究院 | The method of arc discharge chemical vapor deposition diamond film |
| CN1102220A (en) * | 1993-10-28 | 1995-05-03 | 北京科技大学 | Method for applying diamond film to hard alloy tool knife-edge |
| CN1102219A (en) * | 1993-10-28 | 1995-05-03 | 北京科技大学 | New process of chemical gas-phase deposition of diamond coating for hard alloy tool |
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| Publication number | Publication date |
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| CN1258582A (en) | 2000-07-05 |
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