CN109551028A - A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing - Google Patents

A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing Download PDF

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Publication number
CN109551028A
CN109551028A CN201910036973.3A CN201910036973A CN109551028A CN 109551028 A CN109551028 A CN 109551028A CN 201910036973 A CN201910036973 A CN 201910036973A CN 109551028 A CN109551028 A CN 109551028A
Authority
CN
China
Prior art keywords
cutting edge
main cutting
pcd
titanium alloy
screw cutter
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.)
Pending
Application number
CN201910036973.3A
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Chinese (zh)
Inventor
阳学
谭林初
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN AEROSPACE PRECISION TOOL CO Ltd
Original Assignee
SHENZHEN AEROSPACE PRECISION TOOL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHENZHEN AEROSPACE PRECISION TOOL CO Ltd filed Critical SHENZHEN AEROSPACE PRECISION TOOL CO Ltd
Priority to CN201910036973.3A priority Critical patent/CN109551028A/en
Publication of CN109551028A publication Critical patent/CN109551028A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/10Shank-type cutters, i.e. with an integral shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/12Cutters specially designed for producing particular profiles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

The present invention relates to a kind of PCD screw cutters that the high-efficiency milling for titanium alloy is considered to be worth doing, the drill bit of the PCD screw cutter is by main cutting area, secondary cutting region and knife handle composition, the main cutting area includes dividing cutting edge with four blades, respectively the first main cutting edge, the second main cutting edge, the 4th main cutting edge of third main cutting edge, several thread tooths on each main cutting edge are at complementary combination structure, the screw pitch 0.845mm of the thread, pointed part by 0.2-0.3 radian arc transition.The beneficial effects of the present invention are: realizing the function that high speed is effectively processed, and cutting-tool's used life can be improved, reduces use cost.

Description

A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing
Technical field
A kind of high-efficiency milling for titanium alloy of the present invention considers dedicated PCD screw thread roughing milling cutter to be worth doing and belongs to milling tool in machining Technical field is related to a kind of dedicated PCD screw cutter of high-efficiency milling bits for titanium alloy, which is with the angle of shear and screw thread The multiple-cutting-edge tool of tooth, the roughing particularly suitable for high property titanium alloy material.
Background technique
Titanium is a kind of important structural metal to grow up the 1950s, and titanium alloy is that it is added based on titanium The alloy of his element composition, titanium alloy are widely used in each neck because having the characteristics that intensity is high, corrosion resistance is good, heat resistance is high Domain.Many countries all recognize the importance of titanium alloy material in the world, research and develop in succession to it, and obtained reality Using.Mainly develop the high-temperature titanium alloy of aero-engine and the structural titanium alloy of body 50~sixties of 20 century, A collection of corrosion resistant Ti alloy is developed the seventies, since the eighties, corrosion resistant Ti alloy and high-strength titanium alloy are further developed.Titanium Alloy is mainly used for making aircraft engine compressor parts, is secondly rocket, the structural member of guided missile and high-speed aircraft.
Cutting force when titanic alloy machining is only slightly higher than the steel of similar stiffness, but the physical phenomenon of machining titanium alloy ratio It is more complex to process steel, so that titanic alloy machining be made to face huge difficulty.
The thermal conductivity of most of titanium alloy is very low, only the 1/7 of steel, and the 1/16 of aluminium.Therefore, in cutting titanium alloy process The heat of middle generation will not pass to rapidly workpiece or be taken away by chip, and be collected at cutting zone, and generated temperature can be high Up to 1000 DEG C or more, the cutting edge of cutter is made to wear, burst apart and generate built-up edge rapidly, the blade worn quickly occur, and makes to cut It cuts region and generates more heats, further shorten the service life of cutter.
The high temperature that generates in cutting process while the surface integrity for destroying titanium alloy component, lead to part geometry precision Decline and appearance seriously reduce the processing hardening phenomenon of its fatigue strength.
The elasticity of titanium alloy may be beneficial for part performance, but during the cutting process, the elasticity of workpiece becomes Shape is to generate the major reason of vibration.Cutting pressure makes the workpiece of " elasticity " leave cutter and rebound, to make cutter and workpiece Between friction phenomenon be greater than shear action.Friction process can also generate heat, aggravate the bad problem of titanium alloy thermal conductivity.
Summary of the invention
In order to overcome deficiency existing for the above prior art, technical problem to be solved by the invention is to provide one kind to pass through The PCD screw cutter considered to be worth doing using the high-efficiency milling for titanium alloy of axial rake and screw thread toothing, is by following technical side What case was realized.
A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing, the drill bit of the PCD screw cutter is by main cutting Area, secondary cutting region and knife handle composition, the main cutting Qu Yousi blade portion cutting edge, respectively the first main cutting edge, second Main cutting edge, third main cutting edge, the 4th main cutting edge;Wherein, on each cutting edge by several thread tooths at it is complementary Composite structure, thread screw pitch 0.845mm pointed part are 0.2-0.3 arc transition by radian.
Further, the blade material in the main cutting area is PCD (man-made polycrystalline diamond).
Further, in the cutting region, cutting edge axial rake is 7 ° -10 °, and cutting edge radial rake is 3 ° -5 °.
Further, the angular range of micro- tooth each of is rough milled between 70-90 °, micro- tooth height 0.2-0.5mm.
The invention has the advantages that: the dedicated PCD screw thread of high-efficiency milling bits is rough milled, and realizes what high speed was effectively processed Function, and cutting-tool's used life can be improved, reduce use cost.
Detailed description of the invention
Figure 1A is the structural schematic diagram of PCD screw cutter in the embodiment of the present invention.
Figure 1B is the cutter head structure schematic diagram of PCD screw cutter in the embodiment of the present invention.
Fig. 2A is the axial rake schematic diagram of the main cutting edge in the embodiment of the present invention.
Fig. 2 B is micro- tooth angle degree schematic diagram of the main cutting edge in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-2, PCD screw cutter is made of cutter head 1 and knife handle 2, wherein cutter head 1 includes the cutting of four blades Cut the main cutting area of sword, respectively the first main cutting edge A and the second main cutting edge B, the 4th main cutting edge D of third main cutting edge C, Wherein, it is made of complementary combination structure on each cutting edge several threads, thread screw pitch 0.845mm, thread Pointed part is 0.2-0.3 arc transition by radian.
The blade material in main cutting area is that PCD (man-made polycrystalline diamond) is constituted, and there is enough hardness processing titanium to close Gold.
In cutting region, the angle of main cutting edge axial rake G is 7 ° -10 °, the angle of main cutting edge radial rake F is 3 ° - 5 °, the angle K range for each of rough milling micro- tooth E is 70-90 °, between micro- tooth height 0.2-0.5.
In the embodiment of the present invention, high-efficiency milling is considered dedicated PCD screw thread to be worth doing and is rough milled by using axial rake and screw thread toothing, real Show the function that high speed is effectively processed, and cutting-tool's used life can be improved, reduces use cost.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (4)

1. a kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing, which is characterized in that the drill bit of the PCD screw cutter By main cutting area, secondary cutting region and knife handle composition, the main cutting area includes dividing cutting edge, respectively first with four blades Main cutting edge, the second main cutting edge, the 4th main cutting edge of third main cutting edge, several thread tooths on each main cutting edge at Complementary combination structure, the screw pitch 0.845mm of the thread, pointed part by 0.2-0.3 radian arc transition.
2. PCD screw cutter according to claim 1, which is characterized in that the blade material in the main cutting area is PCD。
3. PCD screw cutter according to claim 1, which is characterized in that in the cutting region, cutting edge axial rake It is 7 ° -10 °, cutting edge radial rake is 3 ° -5 °.
4. PCD screw cutter according to claim 1, which is characterized in that the angle model of micro- tooth each of on rough milling It encloses between 70-90 °, micro- tooth height 0.2-0.5mm.
CN201910036973.3A 2019-01-15 2019-01-15 A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing Pending CN109551028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910036973.3A CN109551028A (en) 2019-01-15 2019-01-15 A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910036973.3A CN109551028A (en) 2019-01-15 2019-01-15 A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing

Publications (1)

Publication Number Publication Date
CN109551028A true CN109551028A (en) 2019-04-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910036973.3A Pending CN109551028A (en) 2019-01-15 2019-01-15 A kind of PCD screw cutter that the high-efficiency milling for titanium alloy is considered to be worth doing

Country Status (1)

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CN (1) CN109551028A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07185925A (en) * 1993-12-28 1995-07-25 Kobe Steel Ltd Roughing end mill for rough machine
CN201558984U (en) * 2009-12-18 2010-08-25 陕西航空硬质合金工具公司 Helical end milling cutter with wave-shaped cutting face
CN202155588U (en) * 2011-07-11 2012-03-07 深圳市航天精密刀具有限公司 Welded type CBN (cubic boron nitride) spiral end milling cutter
CN202278239U (en) * 2011-11-09 2012-06-20 浙江双六工具有限公司 End mill
CN202804305U (en) * 2012-09-26 2013-03-20 深圳市中天精密工具有限公司 Polycrystalline diamond milling cutter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07185925A (en) * 1993-12-28 1995-07-25 Kobe Steel Ltd Roughing end mill for rough machine
CN201558984U (en) * 2009-12-18 2010-08-25 陕西航空硬质合金工具公司 Helical end milling cutter with wave-shaped cutting face
CN202155588U (en) * 2011-07-11 2012-03-07 深圳市航天精密刀具有限公司 Welded type CBN (cubic boron nitride) spiral end milling cutter
CN202278239U (en) * 2011-11-09 2012-06-20 浙江双六工具有限公司 End mill
CN202804305U (en) * 2012-09-26 2013-03-20 深圳市中天精密工具有限公司 Polycrystalline diamond milling cutter

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PB01 Publication
PB01 Publication
CB03 Change of inventor or designer information

Inventor after: Yang Xue

Inventor after: Tan Linchu

Inventor after: Han Chunyu

Inventor after: Ge Yuanqing

Inventor before: Yang Xue

Inventor before: Tan Linchu

CB03 Change of inventor or designer information
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190402

RJ01 Rejection of invention patent application after publication