CN102335762A - Cutting cutter - Google Patents
Cutting cutter Download PDFInfo
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- CN102335762A CN102335762A CN2011102206698A CN201110220669A CN102335762A CN 102335762 A CN102335762 A CN 102335762A CN 2011102206698 A CN2011102206698 A CN 2011102206698A CN 201110220669 A CN201110220669 A CN 201110220669A CN 102335762 A CN102335762 A CN 102335762A
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Abstract
The invention discloses a cutting cutter, which comprises a cutter body (1), a blade (2) and a bolt (3), wherein the front end of the cutter body (1) is provided with a groove for containing a blade (2); the front part of the cutter body (1) is provided with a through hole; the lower end of the through hole is provided with a bolt hole matched with the bolt (3); the blade (2) comprises a substrate (21) and a coating (22), wherein the substrate (21) is hard alloy, metal ceramics, boron nitride or high-speed steel; and the thickness of the coating is 6-30mu m. The cutting cutter has the advantage of simple structure, the blade coating has small possibility of falling and breaking, the thickness requirement can be satisfied, and the service life of the blade is prolonged.
Description
Technical field
The present invention relates to the cutter field of cut, relate in particular to a kind of cutting tool with coating.
Background technology
In cut, utilize rotatablely moving of cutter to carry out operation usually, and the contact of cutter and workpiece is exactly contacting between cutting edge and the workpiece of blade; Cut the parts that need processing fast through cutting edge; Because cutting speed is fast and workpiece cutting is more and more harder, cause cutting edge in cutting, constantly to produce higher wearing and tearing and higher temperature, for example in turning processing; The wearing and tearing of the metal fillings that blade is constantly formed on rake and cause crescent hollow abrasion; The workpiece of having processed also will cause flank wear along the back knife face slippage of blade, and blade reaches very high temperature on preceding sensibilities simultaneously, will cause the divergent contour wearing and tearing; Then temperature significantly lowers on the knife face, presents abrasive wear; This shows that the reliability of blade and life-span need higher raising and requirement.
In the prior art, in the surface deposition coating of blade, can effectively improve reliability thus usually; Prior blade is coated with PVD or CVD coating, optional coating have Ti (C, N), TiN, (Ti; Al) N or the like, in two kinds of coatings, the PVD coating has better fineness and stress; Carry load preferably, but PVD must be very thin, and this is because thicker PVD will cause easily peeling off, break and tipping; The maximum coating layer thickness that before peeling off, can on blade, deposit depends primarily on the radius of cutting edge, and too sharp will causing of cutting edge peels off and tipping easily, thus; Under many circumstances, need the thicker coating of deposition, so that the better wear resistance ability to be provided.
Utilizing the PVD technology to carry out the metal level deposition is the technology of having confirmed, and if directly metal level is deposited on the adhesion that can strengthen coating on the blade base.
But how the PVD coating being provided and satisfying the required coating layer thickness of cutting edge will be a problem that must solve.
Summary of the invention
The object of the present invention is to provide a kind of cutting tool, this cutter structure is simple, insert coating difficult drop-off, cracked, and can satisfy the demand of thickness, increase the life-span of blade.
For realizing above-mentioned purpose, the invention discloses a kind of cutting tool, comprise cutter hub, blade and bolt, the front end of cutter hub has the groove that holds blade, and the front portion of cutter hub is provided with through hole, and the through hole lower end is provided with the bolt hole that cooperates with bolt, it is characterized in that:
This blade comprises matrix and coating, and matrix is carbide alloy, cermet, boron nitride or high-speed steel, and the thickness of coating is 6-30 μ m.
Wherein, between bolt and through hole, be provided with compressing tablet, compressing tablet is T shape roughly, and the rear portion is provided with convexity, and this convexity is inserted in the locating slot on cutter hub with the location compressing tablet, and the inclination front end of compressing tablet compresses blade.
Wherein, be provided with back pad and lower gasket between blade and the groove, back pad is between blade rear end and groove, and lower gasket is between blade lower end and groove.
Wherein, this coating includes first coating and second coating at least.
Wherein, first coating is a metal coating, and this metal coating is the metal coating of from Al, Cr, V, Ta and Zr, choosing any one kind of them or several kinds are made up, and the thickness of this first coating is 100-800nm.
Wherein, second coating be choose any one kind of them among Al, Cr, V, Ta and the Zr or several kinds metal nitride, oxidized metal, boride metal, carbonization metal coating, the thickness of this second coating is 6-30 μ m.
Pass through said structure; Cutting tool of the present invention scribbles laminated coating on the matrix of blade, not only made full use of the wearability of metal coating and thick PVD coating, has avoided coating shedding, cracked possibility; Increase the life-span of cutter, also improved the abrasion resistance of back knife face simultaneously.
Description of drawings
Fig. 1 has shown the sketch map of the cutting tool of cutter of the present invention.
Fig. 2 has shown the sketch map of blade of the present invention.
Fig. 3 has shown the part amplification view of blade of the present invention.
The present invention will further describe in detail through following specific embodiment, and further combine will obtain knowing more and significantly understanding to the explanation of accompanying drawing.
The specific embodiment
Referring to Fig. 1, shown the sketch map of cutting tool of the present invention, this cutting tool comprises cutter hub 1, blade 2 and bolt 3, the front end of cutter hub 1 has the groove that holds blade 2; The front portion of cutter hub 1 is provided with through hole, and the through hole lower end is provided with bolt hole, and bolt 3 inserts through hole; Cooperatively interact with bolt hole, between bolt 3 and through hole, be provided with compressing tablet 4, compressing tablet 4 is T shape roughly; The rear portion is provided with convexity, and with location compressing tablet 4, the inclination front end of compressing tablet 4 compresses blade 2 in the locating slot on this convexity insertion cutter hub 1; Be provided with back pad 5 and lower gasket 6 between blade 2 and the groove, back pad is between blade 2 rear ends and groove, and lower gasket 6 is between blade lower end and groove.
Referring to Fig. 2, shown the sketch map of blade 2 of the present invention, this blade 2 comprises matrix 21 and coating 22; Matrix 21 is carbide alloy, cermet, boron nitride, high-speed steel etc.; Coating 22 is coated in the outside of matrix 21 uniformly, and preferably the thickness of coating 22 is 6-30 μ m, and more preferably the thickness of coating 22 is 15-20 μ m; This thicker coating 22 can effectively be protected the different surfaces of blade 2 on the one hand, and can avoid coating shedding, cracked possibility.
Referring to Fig. 3; The part amplification view that has shown blade 2 of the present invention; Therefrom can specifically see the concrete composition of coating 22; This coating 2 include at least first coating 221 and second coating, 222, the first coatings 221 evenly be coated on matrix 21 around, second coating 222 be coated on first coating 221 around.
Wherein, First coating 221 is a metal coating, and this metal coating can be chooses any one kind of them from Al, Cr, V, Ta and Zr or metal coating that several kinds are made up, and the thickness of this first coating is 100-800nm; Preferably; The thickness of first coating is 300-600nm, and more preferably, the thickness of first coating is 500nm-550nm.
Wherein second coating 222 can be choose any one kind of them among Al, Cr, V, Ta and the Zr or several kinds metal nitride, oxidized metal, boride metal, carbonization metal coating; The thickness of this second coating is 6-30 μ m; Preferably; The thickness of second coating 222 is 15-20 μ m, and more preferably, the thickness of second coating 222 is 17-18 μ m.
Preferably, around second coating 222, also being coated with the 3rd coating 223, the three coatings 223 is nonmetallic coating; This nonmetallic coating is carbon fiber, ultra hard ceramic etc.; The thickness of the 3rd coating is 500-800nm, and preferably, the thickness of the 3rd coating is 600-700nm; More preferably, the thickness of the 3rd coating is 620nm-680nm.
The present invention provides the method for making a kind of blade simultaneously, and this method may further comprise the steps:
Step 1: make matrix;
Step 2: deposition first coating on matrix preferably deposits through PVD;
Step 3: deposition second coating on first coating preferably deposits through CVD;
Step 4: deposition the 3rd coating on second coating.
Wherein step 4 is optional.
Preferably; First coating is a metal coating, and this metal coating can be chooses any one kind of them from Al, Cr, V, Ti, Ta and Zr or metal coating that several kinds are made up, and the thickness of this first coating is 100-800nm; Preferably; The thickness of first coating is 300-600nm, and more preferably, the thickness of first coating is 500nm-550nm.
Preferably; Second coating can be choose any one kind of them among Al, Cr, V, Ti, Ta and the Zr or several kinds metal nitride, oxidized metal, boride metal, carbonization metal coating; The thickness of this second coating is 6-30 μ m, and preferably, the thickness of second coating 222 is 15-20 μ m; More preferably, the thickness of second coating 222 is 17-18 μ m.
Preferably, the 3rd coating 223 is a nonmetallic coating, and this nonmetallic coating is carbon fiber, ultra hard ceramic etc.; The thickness of the 3rd coating is 500-800nm, and preferably, the thickness of the 3rd coating is 600-700nm; More preferably, the thickness of the 3rd coating is 620nm-680nm.
Through design of the present invention, covered by laminated coating around the blade, first coating is the simple metal coating, and is thinner relatively; And because the characteristic of simple metal, hardness is comparatively moderate, and certain toughness and caking property preferably are provided, and second coating is a metallic compound; Its hardness is higher, and is thicker relatively, and wearability preferably is provided thus, increased service life; The 3rd optional coating is a nonmetallic coating, and its hardness is high, and wearability is good, and protection can further be provided.
Through a plurality of instances superiority of the present invention is described below:
Example one:
Adopt carbide alloy as blade base, divide three groups to experimentize, first group is employing CVD deposition alundum (Al of the prior art, and deposit thickness is 20 μ m; Second group deposits first coating and second coating respectively through the step 1 in the method for the present invention and two, and wherein the material of first coating is Cr, and thickness is 500nm, and the material of second coating is Cr
0.52V
0.48C, thickness are 18 μ m; The 3rd group deposits first coating, second coating and the 3rd coating respectively through the step 1 in the method for the present invention, two and three, and wherein the material of first coating is Cr, and thickness is 500nm, and the material of second coating is Ti
0.33Al
0.67N, thickness are 18 μ m, and the material of the 3rd coating is a carbon fiber, and thickness is 650nm; Carry out the test of three groups of blades through turning, the test piece material is a hardened steel, and in the test, first group of blade average life span is 24 minutes, and second group of blade average life span is 86 minutes, and the 3rd group of blade average life span is 92 minutes.
Example two:
Adopt high-speed steel as blade base, divide three groups to experimentize equally, first group is employing CVD depositing Ti C of the prior art, and deposit thickness is 25 μ m; Second group deposits first coating and second coating respectively through the step 1 in the method for the present invention and two, and wherein the material of first coating is Al, and thickness is 480nm, and the material of second coating is Ti
0.33Al
0.67N, thickness are 20 μ m; The 3rd group deposits first coating, second coating and the 3rd coating respectively through the step 1 in the method for the present invention, two and three, and wherein the material of first coating is Al, and thickness is 480nm, and the material of second coating is Ti
0.33Al
0.67N, thickness are 20 μ m, and the material of the 3rd coating is a ultra hard ceramic, and thickness is 700nm; Carry out the test of three groups of blades through milling, the test piece material is a cast iron, and in the test, first group of blade average life span is 67 minutes, and second group of blade average life span is 186 minutes, and the 3rd group of blade average life span is 198 minutes.
Can know that through above-mentioned two examples laminated coating of the present invention mechanism makes the service life of blade and wear resistance be significantly improved.
It is obvious that, and above description and record only are for example rather than in order to limit disclosure of the present invention, application or use.Though described and be described in the drawings embodiment in an embodiment; But the optimal mode that the present invention does not limit by the accompanying drawing example and the conduct of describing is in an embodiment thought at present is with the specific examples of the instruction of embodiment of the present invention, and scope of the present invention will comprise any embodiment of the specification that falls into the front and appended claim.
Claims (6)
1. a cutting tool comprises cutter hub (1), blade (2) and bolt (3), and the front end of cutter hub (1) has the groove that holds blade (2), and the front portion of cutter hub (1) is provided with through hole, and the through hole lower end is provided with the bolt hole that cooperates with bolt (3), it is characterized in that:
This blade (2) comprises matrix (21) and coating (22), and matrix (21) is carbide alloy, cermet, boron nitride or high-speed steel, and the thickness of coating is 6-30 μ m.
2. cutting tool as claimed in claim 1 is characterized in that, between bolt (3) and through hole, is provided with compressing tablet (4); Compressing tablet (4) is a T shape; The rear portion is provided with convexity, and with location compressing tablet (4), the inclination front end of compressing tablet (4) compresses blade (2) in the locating slot on this convexity insertion cutter hub (1).
3. cutting tool as claimed in claim 2 is characterized in that, is provided with back pad (5) and lower gasket (6) between blade (2) and the groove, and back pad (5) is positioned between blade (2) rear end and the groove, and lower gasket (6) is positioned between blade (2) lower end and the groove.
4. cutting tool as claimed in claim 1 is characterized in that, this coating (22) includes first coating (221) and second coating (222) at least.
5. cutting tool as claimed in claim 4; It is characterized in that; First coating (221) is a metal coating, and this metal coating is the metal coating of from Al, Cr, V, Ta and Zr, choosing any one kind of them or several kinds are made up, and the thickness of this first coating (221) is 100-800nm.
6. cutting tool as claimed in claim 5; It is characterized in that; Second coating (222) be choose any one kind of them among Al, Cr, V, Ta and the Zr or several kinds metal nitride, oxidized metal, boride metal, carbonization metal coating, the thickness of this second coating (222) is 6-30 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102206698A CN102335762A (en) | 2011-08-03 | 2011-08-03 | Cutting cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102206698A CN102335762A (en) | 2011-08-03 | 2011-08-03 | Cutting cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102335762A true CN102335762A (en) | 2012-02-01 |
Family
ID=45511850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102206698A Pending CN102335762A (en) | 2011-08-03 | 2011-08-03 | Cutting cutter |
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| CN (1) | CN102335762A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972485A (en) * | 2015-07-07 | 2015-10-14 | 黑旋风锯业股份有限公司 | High-abradability thin type chopping cutting blade and regeneration method thereof |
| CN105798338A (en) * | 2016-05-31 | 2016-07-27 | 成都恒成工具股份有限公司 | Cutter for machine tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747806A (en) * | 2003-02-14 | 2006-03-15 | 住友电气工业株式会社 | Edge replacement tip and cutting tool using the same |
| CN101077533A (en) * | 2007-07-05 | 2007-11-28 | 上海美恩精密工具有限公司 | Multi-edge composite cutting tools |
| CN101147982A (en) * | 2007-11-08 | 2008-03-26 | 上海美恩精密工具有限公司 | Super-hard knife tool |
| CN101463461A (en) * | 2007-12-21 | 2009-06-24 | 山特维克知识产权股份有限公司 | Method of making a coated cutting tool, and cutting tools thereof |
-
2011
- 2011-08-03 CN CN2011102206698A patent/CN102335762A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1747806A (en) * | 2003-02-14 | 2006-03-15 | 住友电气工业株式会社 | Edge replacement tip and cutting tool using the same |
| CN101077533A (en) * | 2007-07-05 | 2007-11-28 | 上海美恩精密工具有限公司 | Multi-edge composite cutting tools |
| CN101147982A (en) * | 2007-11-08 | 2008-03-26 | 上海美恩精密工具有限公司 | Super-hard knife tool |
| CN101463461A (en) * | 2007-12-21 | 2009-06-24 | 山特维克知识产权股份有限公司 | Method of making a coated cutting tool, and cutting tools thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972485A (en) * | 2015-07-07 | 2015-10-14 | 黑旋风锯业股份有限公司 | High-abradability thin type chopping cutting blade and regeneration method thereof |
| CN105798338A (en) * | 2016-05-31 | 2016-07-27 | 成都恒成工具股份有限公司 | Cutter for machine tool |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120201 |