CN107620053A - A kind of manufacture method for cutting coated cutting tool - Google Patents
A kind of manufacture method for cutting coated cutting tool Download PDFInfo
- Publication number
- CN107620053A CN107620053A CN201711055632.8A CN201711055632A CN107620053A CN 107620053 A CN107620053 A CN 107620053A CN 201711055632 A CN201711055632 A CN 201711055632A CN 107620053 A CN107620053 A CN 107620053A
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- Prior art keywords
- manufacture method
- cutting tool
- cutting
- coating
- coated cutting
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- Cutting Tools, Boring Holders, And Turrets (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
The invention discloses a kind of manufacture method for cutting coated cutting tool, under the conditions of Alm é n values are 0.2 0.4 method, blade is handled by the current for being mixed with blast media.The advantage of the invention is that improving the toughness of cutter, abrasion resistance, there are excellent properties in terms of anti-coating shedding.
Description
Technical field
The present invention relates to a kind of manufacture method for cutting coated cutting tool.
Background technology
Modern cutter for metal cutting must be by maximum abrasive resistance, cutting resistance, crush resistance and maximum resistance to plasticity
Morphotropism is combined together.By using physical vapour deposition (PVD) (PVD) or chemical vapor deposition (CVD) or plasma enhanced chemical
(PACVD) technology of vapour deposition addition wear-resistant coating, compared with not having cated blade, wearability can be significantly improved.Apply
The wearability of layer blade is often clearly dependent on coating layer thickness, and in majority machining application, if increase coating
Thickness, then it can substantially improve wearability.But it has to be mentioned that the positive influences for increasing coating layer thickness, its is important
On condition that coating surface wants smooth enough, to prevent workpiece material from adhering to coating.
In substrate surface depositing coating in addition to it can provide the performance of enhancing in many applications, one is also negatively affected
A little attributes.For example, in the case where blade is chronically exposed to elevated temperature during producing the long CVD method needed for thick coating, this can be tight
Ghost image rings the toughness of blade.Another problem for relatively thick coating is that they often have coarse Crystallite Sizes On The Surface.This will
Increasing the danger that workpiece material adheres to workpiece surface in machine operations, this causes this kind of instrument compared with compared with shallow layer,
Delamination is more suffered from, particularly in very high application is required.Danger of the loss of toughness plus increased coating shedding
Danger make it that blade is more sensitive to workpiece shapes, and is easier to premature failure, or even of serious failure.
The balance of the different attribute of cutting tool is difficult task, and illustrates commercially have a variety of cutters can
The reason for using.
In order to reduce coated cutting tool danger of serious failure, especially, the cutter with thick coating often with rich cobalt
The substrate of surface district combines, and the rich cobalt surface district brings toughness to increase with the minimal loss of non-deformability.
In order to make up the counter productive of coating process and further improve the attribute of coating in itself, many aspects are used,
And describe in the literature.But no one of these methods are demonstrated to comply fully with necessary requirement so far, to require non-
Desired cutter attribute is obtained in the metal cutting application often done.
United States Patent (USP) 4,643,620 gives is enlightened in which can improve toughness by reducing coating layer thickness along cutting edge.
EP-A-693574 is given by removing the TiCNO top layers in edge line or blade tip so as to expose fine grain
Grain Al2O3The enlightenment of layer, the peel of edge can be substantially reduced.If it is also concluded that smoother surface discord conduct
The fine grain Al of outer layer2O3With reference to if, it is not enough to improve peel.
Various blasted conditions are specified in above-mentioned patent, these blasted conditions reach 1.0-2.0bar burst pressure and
The abrasive grain of 150-350 mesh.It has now been discovered that come by using the appropriate concentration of higher pressure and gravel and water excellent
Change blasting method, the performance of blade can be improved to excellent level.
The content of the invention
The purpose of the present invention be provide it is a kind of by the spray for the mixture for using water and alumina powder under given conditions
Sand/blasting operation handles the enlightenment of the method for CVD coated chips, to manufacture the blade combined with definitely excellent attribute.
Sandblasting effect is affected by many factors, such as the distance between grain size, pressure, slurry concentration, blade and nozzle, sudden and violent
Reveal the quantity of time and combination, these are a small amount of factor therein.All knots of good result will be provided instead of attempting to specify
Close, it is easier to be utilized in described in United States Patent (USP) 2.350.440 be referred to as " Alm é n tests " method.The test be related to by
Metal sheet band is exposed to sandblasting/peening jet.The bombardment of particle causes the change of residual stress level, and this then causes metal tape
Bend in one direction.Measurement amount of bow obtains value and their influences to surface stress of blasted condition.
According to the present invention, there is provided Alm é n values be 0.2-0.4 as under the conditions of, by make coated cutting tool by
The current processing of blast media is mixed with, to manufacture the method for the coated cemented carbide endmill for metal cutting.Preferably, coating
Outermost layer is Al2O3.Blast media is Al2O3Or SiC, preferably Al2O3.Preferably, the mean concentration of blast media is more than
15vol-% but it is less than 35vol-%, and mean grain size is 75 μm.
Embodiment
Embodiment 1
Under the conditions of Alm é n values are as 0.2-0.4, by making coated cutting tool by the water for being mixed with blast media
Stream process, to manufacture the method for the coated cemented carbide endmill for metal cutting.The outermost layer of coating is Al2O3.Blast media is
Al2O3Or SiC, preferably Al2O3.The mean concentration of blast media is more than 15vol-% but is less than 35vol-%, and the crystalline substance that is averaged
Granularity is 75 μm.
The advantage of the invention is that improving the toughness of cutter, abrasion resistance, there are excellent properties in terms of anti-coating shedding.
Above disclosed is only several preferred embodiments of the present invention, can not limit the present invention's with this certainly
Interest field, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (4)
1. a kind of manufacture method for cutting coated cutting tool, it is characterised in that under the conditions of Alm é n values are 0.2-0.4 method, make
Blade is handled by the current for being mixed with blast media.
2. a kind of manufacture method for cutting coated cutting tool according to claim 1, it is characterised in that the outermost layer of coating is
Al2O3。
3. a kind of manufacture method for cutting coated cutting tool according to claim 1, it is characterised in that the blast media is
Aluminum oxide.
4. a kind of manufacture method for cutting coated cutting tool according to claim 1, it is characterised in that the blast media
Mean concentration is more than 15vol-% but is less than 35vol-%, and mean grain size is 75 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055632.8A CN107620053A (en) | 2017-11-01 | 2017-11-01 | A kind of manufacture method for cutting coated cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055632.8A CN107620053A (en) | 2017-11-01 | 2017-11-01 | A kind of manufacture method for cutting coated cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107620053A true CN107620053A (en) | 2018-01-23 |
Family
ID=61093709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711055632.8A Pending CN107620053A (en) | 2017-11-01 | 2017-11-01 | A kind of manufacture method for cutting coated cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107620053A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927512A (en) * | 2005-09-09 | 2007-03-14 | 山特维克知识产权股份有限公司 | Pvd coated cutting tool |
| CN101198720A (en) * | 2005-06-17 | 2008-06-11 | 山特维克知识产权股份有限公司 | Method for manufacturing metal cutting tools |
-
2017
- 2017-11-01 CN CN201711055632.8A patent/CN107620053A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101198720A (en) * | 2005-06-17 | 2008-06-11 | 山特维克知识产权股份有限公司 | Method for manufacturing metal cutting tools |
| CN1927512A (en) * | 2005-09-09 | 2007-03-14 | 山特维克知识产权股份有限公司 | Pvd coated cutting tool |
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Legal Events
| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180123 |