CN103551609B - For the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove - Google Patents
For the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove Download PDFInfo
- Publication number
- CN103551609B CN103551609B CN201310549279.4A CN201310549279A CN103551609B CN 103551609 B CN103551609 B CN 103551609B CN 201310549279 A CN201310549279 A CN 201310549279A CN 103551609 B CN103551609 B CN 103551609B
- Authority
- CN
- China
- Prior art keywords
- hollow abrasion
- blade
- crescent hollow
- edge
- crescent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/08—Rake or top surfaces
- B23B2200/081—Rake or top surfaces with projections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/12—Boron nitride
- B23B2226/125—Boron nitride cubic [CBN]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides and a kind ofly comprise hard alloy substrate and cubic boron nitride composite piece for the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove, blade cut sword is formed by bearing chamfered edge, three convex type anti-crescent hollow abrasion grooves and reinforced projection; Negative chamfered edge presses the shape circumscribes of described turning superhard cutting blade in turning superhard cutting blade edge, three anti-crescent hollow abrasion grooves of convex type scan the blade tip and separated time both sides, blade tip angle that are distributed in cutting edge, reinforced projection is enclosed by three anti-crescent hollow abrasion grooves of convex type and forms, in inverted trapezoidal and higher than described carbide matrix body plane.Hollow for anti-crescent moon projection is arranged in separated time both sides, blade tip angle and cutting edge by the present invention dexterously, utilize the design of convex type to greatly reduce high hard material in fine finishining and also there is chip breaking function to the crescent hollow abrasion of rake face simultaneously, have significant improvement for workpiece surface quality and blade tip life-span.
Description
Technical field
The present invention relates to a kind of turning cutting tool of metal cutting process field, particularly a kind of for the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove.
Background technology
Conventional cubic boron nitride blade is in the hard metal material processing of height, and usually use the turning superhard cutting blade without grooved to carry out dry cutting to reach the object of alternative grinding technique to high-hardness metal material, the cutting edge front end of these blades is only with negative chamfered edge.Although it is little that this type of blade has volume, hardness is high, cutting edge wearability is strong, the features such as versatility is stronger, but because its rake face is simple, without point of a knife inclination angle, cutting zone is too much, therefore there is cutting resistance large, detritus discharge direction is indefinite, blade tip temperature crosses the high defect affecting blade life, particularly in high rigidity, cutting temperature is there is high in the working angles of high viscosity metal material, it is serious that sclerosis is cut in processing, easy formation built-up edge, the problems such as the large and surface quality of plastic deformation resistance and precision not easily ensure, the material characteristics of cubic boron nitride material is failed to perform to completely in process.
Summary of the invention
The object of the invention is to solve the cutting technology difficult problems such as detritus accumulation that current high-hardness metal material runs in fine finishining, blade tip tipping, crescent hollow abrasion be serious, improve blade service life and working (machining) efficiency.
For achieving the above object, technical scheme of the present invention is as follows:
There is provided a kind of for the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove, comprise hard alloy substrate and cubic boron nitride composite piece, the cutting portion of described turning superhard cutting blade is positioned at the upper surface of described cubic boron nitride composite piece, there are two acute angles this upper surface, each acute angle all has a cutting edge; Described cutting edge is formed by bearing chamfered edge, three convex type anti-crescent hollow abrasion grooves and reinforced projection; Negative chamfered edge presses the shape circumscribes of described turning superhard cutting blade in turning superhard cutting blade edge with fixed width b and fixed angle a, three convex type anti-crescent hollow abrasion groove horizontal cross-sections are the circular arc that Radius is d, scan the blade tip and separated time both sides, blade tip angle that are distributed in described cutting edge, one wherein on blade tip anti-crescent hollow abrasion groove and negative chamfered edge horizontal range are f, and two anti-crescent hollow abrasion grooves of separated time both sides, blade tip angle are symmetrical and be e with the horizontal range of negative chamfered edge; Reinforced projection is enclosed by three anti-crescent hollow abrasion grooves of convex type and forms, and in inverted trapezoidal and higher than described carbide matrix body plane, the upper surface of reinforced projection is parallel to described carbide matrix body plane, and two interplanar constant distance are c.
Described a is 10 °-30 °, and described b is 0.05mm-0.3mm.
Described c changes with blade thickness, is 0.05-0.3mm.
Described d is 0.1-2mm.
Described e is 0.4-1mm, and described f is 0.3-1mm.
Compared with prior art, the present invention has following beneficial effect:
1. the present invention is by being arranged in blade tip and separated time both sides, blade tip angle by anti-crescent hollow abrasion groove dexterously, anti-crescent hollow abrasion groove is utilized effectively to reduce the crescent hollow abrasion of high rigidity detritus to rake face, and strengthen blade tip intensity to a certain extent, effectively control detritus discharge direction and chip breaking length, extend the crescent hollow abrasion cycle to greatest extent, significant improvement is had for workpiece surface quality and blade tip life-span, fundamentally solve the detritus accumulation that superhard cutting blade runs in the fine finishining of high-hardness metal material, crescent hollow abrasion is serious, work piece suface processing quality cannot meet technical barrier in the cuttings such as workpiece needs, 2. the present invention shows also very excellent in cutting with CN, CP type blade, optimized cutting suitable parameters is: feed range 0.05-0.8mm/rev, cutting-in scope 0.1-3mm, the more common superhard turning insert of the working (machining) efficiency in the High speed finish machining of high-hardness metal material is made to improve nearly 50%, surface quality improves 70%, has played the cutting characteristic of cubic boron nitride material in high rigidity machining to greatest extent, 3. the present invention structurally adopts reinforced projection, in order to strengthen cutting edge strength and restriction detritus discharge direction in working angles, and the design of anti-crescent hollow abrasion groove makes the present invention have strict control to detritus and crescent hollow abrasion, blade service life, working (machining) efficiency and workpiece surface quality all increase, 4. the D type blade that the C type blade that the present invention is suitable for nose angle be convex triangle W shaped blades, the nose angle of 80 ° is 80 ° of rhombic quadrangles, nose angle are 55 ° of rhombic quadrangles, nose angle are rhombic quadrangles V-knife sheet, the blade tip angle of 35 ° be 60 ° of leg-of-mutton T-shaped blades and nose angle is 90 ° of foursquare S type blades, and the scope of application is extensive, 5. all grooveds of the present invention all process with grinding method, and its cross sectional shape is emery wheel cross sectional shape.
Accompanying drawing explanation
Fig. 1 is the cutting portion bit architecture schematic diagram of blade of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the overall structure schematic diagram of CN type blade.
In figure: 1, cutting edge, 2, negative chamfered edge, 3, anti-crescent hollow abrasion groove, 4, reinforced projection, 5, hard alloy substrate.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Be illustrated in figure 3 CN type blade, blade entirety is rhombus, and cutting portion is positioned on two acute angles.As illustrated in fig. 1 and 2, cutting edge 1 is by negative chamfered edge 2, anti-crescent hollow abrasion groove 3 and reinforced protruding 4 is formed, bear chamfered edge 2 with fixed width b=0.05mm-0.3mm and fixed angle a=10 ° of-30 ° of shape circumscribes pressing blade in blade edge, three convex type anti-crescent hollow abrasion groove 3 horizontal cross-sections are the circular arc of Radius d=0.1-2mm, scan the blade tip and separated time both sides, blade tip angle that are distributed in cutting edge 1, one wherein on blade tip anti-crescent hollow abrasion groove 3 is f with negative chamfered edge 2 horizontal range, be generally 0.3-1mm, two anti-crescent hollow abrasion grooves 3 of separated time both sides, blade tip angle are symmetrical and be e with the horizontal range of negative chamfered edge 2, be generally 0.4-1mm, reinforced protruding 4 to be enclosed by three anti-crescent hollow abrasion grooves 3 of convex type and form, in inverted trapezoidal and higher than the plane of described hard alloy substrate 5, the reinforced upper surface of protruding 4 is parallel to the plane of described hard alloy substrate 5, and two interplanar constant distance are c, are generally 0.05-0.3mm.
Claims (1)
1. one kind for the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove, comprise hard alloy substrate and cubic boron nitride composite piece, the cutting portion of described turning superhard cutting blade is positioned at the upper surface of described cubic boron nitride composite piece, there are two acute angles this upper surface, each acute angle all there is a cutting edge, it is characterized in that: described cutting edge is formed by bearing chamfered edge, three convex type anti-crescent hollow abrasion grooves and reinforced projection, negative chamfered edge presses the shape circumscribes of described turning superhard cutting blade in turning superhard cutting blade edge with fixed width 0.05mm-0.3mm and fixed angle 10 °-30 °, three anti-crescent hollow abrasion grooves of convex type all process with grinding method, horizontal cross-section is the circular arc that Radius is 0.1-2mm, scan the blade tip and separated time both sides, blade tip angle that are distributed in described cutting edge, one wherein on blade tip anti-crescent hollow abrasion groove and negative chamfered edge horizontal range are 0.3-1mm, two anti-crescent hollow abrasion grooves of separated time both sides, blade tip angle are symmetrical and be 0.4-1mm with the horizontal range of negative chamfered edge, reinforced projection is inverted trapezoidal, inverted trapezoidal upper base and two stringcourses are enclosed by three anti-crescent hollow abrasion grooves of convex type and form, reinforced projection is higher than described carbide matrix body plane, the upper surface of reinforced projection is parallel to described carbide matrix body plane, and two interplanar constant distance are 0.05-0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549279.4A CN103551609B (en) | 2013-11-08 | 2013-11-08 | For the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310549279.4A CN103551609B (en) | 2013-11-08 | 2013-11-08 | For the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103551609A CN103551609A (en) | 2014-02-05 |
| CN103551609B true CN103551609B (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310549279.4A Expired - Fee Related CN103551609B (en) | 2013-11-08 | 2013-11-08 | For the accurately machined turning superhard cutting blade with anti-crescent hollow abrasion groove |
Country Status (1)
| Country | Link |
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| CN (1) | CN103551609B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014826A (en) * | 2014-05-28 | 2014-09-03 | 河南富耐克超硬材料股份有限公司 | Groove type blade |
| CN106424788A (en) * | 2016-11-08 | 2017-02-22 | 哈尔滨理工大学 | Turning blade with variable chamfering width |
| CN109290591A (en) * | 2018-12-14 | 2019-02-01 | 廊坊西波尔钻石技术有限公司 | A kind of welded type superhard cutting blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1297922A1 (en) * | 2001-10-01 | 2003-04-02 | Sandvik Aktiebolag | Cutting insert for chip removing machining |
| JP2006187813A (en) * | 2004-12-28 | 2006-07-20 | Ngk Spark Plug Co Ltd | Cutting insert and cutting tool |
| CN1905975A (en) * | 2004-01-14 | 2007-01-31 | 住友电工硬质合金株式会社 | Throw-away tip |
| CN101695760A (en) * | 2009-10-29 | 2010-04-21 | 株洲钻石切削刀具股份有限公司 | PCBN cutter blade with knifepoint provided with scrap sweeping grooves |
| CN203541577U (en) * | 2013-11-08 | 2014-04-16 | 江苏切剀刀具有限公司 | Super-hard turning blade with crater-wear-resistant grooves for finish machining |
-
2013
- 2013-11-08 CN CN201310549279.4A patent/CN103551609B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1297922A1 (en) * | 2001-10-01 | 2003-04-02 | Sandvik Aktiebolag | Cutting insert for chip removing machining |
| CN1905975A (en) * | 2004-01-14 | 2007-01-31 | 住友电工硬质合金株式会社 | Throw-away tip |
| JP2006187813A (en) * | 2004-12-28 | 2006-07-20 | Ngk Spark Plug Co Ltd | Cutting insert and cutting tool |
| CN101695760A (en) * | 2009-10-29 | 2010-04-21 | 株洲钻石切削刀具股份有限公司 | PCBN cutter blade with knifepoint provided with scrap sweeping grooves |
| CN203541577U (en) * | 2013-11-08 | 2014-04-16 | 江苏切剀刀具有限公司 | Super-hard turning blade with crater-wear-resistant grooves for finish machining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103551609A (en) | 2014-02-05 |
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