CN108405946B - Inhibit micro- tooth row cloth design method of the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge - Google Patents
Inhibit micro- tooth row cloth design method of the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge Download PDFInfo
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- CN108405946B CN108405946B CN201810495696.8A CN201810495696A CN108405946B CN 108405946 B CN108405946 B CN 108405946B CN 201810495696 A CN201810495696 A CN 201810495696A CN 108405946 B CN108405946 B CN 108405946B
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- 238000003801 milling Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004744 fabric Substances 0.000 title claims abstract description 12
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 4
- 238000012512 characterization method Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 13
- 239000002131 composite material Substances 0.000 abstract description 11
- 239000000835 fiber Substances 0.000 abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 6
- 239000004917 carbon fiber Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 241000252229 Carassius auratus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention belongs to cutting of hardworking material processing technique fields, provide a kind of micro- tooth row cloth design method for inhibiting the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge, by 3 D stereo milling cutter along axial direction split after be unfolded, it is formed with the tangential and axial micro- tooth layout of two-dimentional milling cutter for coordinate system, by determining milling cutter construction parameter, determine the design method of micro- tooth lower edges overlapping arrangement, the thickness of cutting of sharp corner point can be effectively reduced in micro- tooth two edges overlapping arrangement mode, under long cutting stroke, guarantee the outstanding cutting ability of micro- tooth.Simultaneously, guarantee that micro- tooth thickness of cutting is relatively uniform, reduce cutter flutter when high-speed milling carbon fibre composite, to avoid the phenomenon that easy tipping occur in weak sharp corner point, furthermore, based on 3 d modeling software SolidWorks, the accuracy of the arrangement design method is demonstrated, realizes that high-speed smooth is effectively processed under the big cutting data of carbon fibre composite.
Description
Technical field
The invention belongs to the Machining Technology for Cutting fields of difficult-to-machine material, are related to a kind of micro- tooth milling cutter cutting edge of inhibition multiple-cutting-edge
Micro- tooth row cloth design method of edge breakage, by carrying out arrangement design to micro- tooth, the cutting for reducing micro- tooth cutting edge edge is thick
The problem of spending, can effectively solve the problem that cutting edge edge breakage.
Background technique
Carbon fiber enhancement resin base composite material (CFRP) has specific strength high, resistance to for other metal materials
The performance advantages such as fatigability, corrosion resistance and bearing capacity be strong, therefore, CFRP has become the fields such as aerospace traffic delivery dress
Standby and loss of weight synergy preferred material.It is solid in its laying for Carbon-fiber Reinforced Plastics Component used in aerospace equipment
After chemical conversion type, to meet fitted position requirement, secondary operation need to be carried out, is milled into as one of main processing method.However, carbon fiber
Dimension composite material belongs to typical difficult-to-machine material, and reinforcing fiber is different with the linear expansion coefficient of resin matrix in material, increases
Brittle fracture, impact loading of the cutting edge constantly by matrix and fiber easily occur for strong fiber, and load concentration is in knife
It considers to be worth doing near contact point on the area of very little, and the toughness of carbide-tipped milling cutter is poor, and cutting edge edge is caused easily to generate breakage,
In addition, in Milling Process, momentary cutting thick be it is continually changing, the cutting force for causing cutting edge to bear is in fluctuation change
Change, if edge strength is insufficient, will lead to cutting edge and occur breakage, it is poor so as to cause machined surface quality, cutter life is low etc.
Problem.Particular with the milling cutter of micro- toothing, micro- tooth is staggered in certain rule, and micro- tooth row cloth can determine that adjacent two is micro-
The lap of tooth, if adjacent micro- tooth middle section overlapping, and micro- tooth edge part is underlapped, then leads to micro- tooth edge part ratio
Micro- tooth middle section thickness of cutting is big, causes cutting force suffered by marginal portion big, simultaneously because cutting edge edge is more sharp, by force
Spend lower, therefore marginal portion is more also easy to produce breakage.On the contrary, if cutting edge marginal portion is overlapped, and be not overlapped among micro- tooth, then
It can reduce the thickness of cutting of micro- tooth edge part, thus the micro- tooth edge of effective protection.Therefore consider that micro- tooth row cloth is micro- to improving
The cutter life of tooth milling cutter is of great significance.
" integral carbide goldfish scale milling cutter " of Tang Chensheng et al. invention, number of patent application 200910013142.0, it is related to
And a kind of milling cutter of the Milling Process for composite materials such as carbon fiber, glass fibres, symmetrically interlocked using left and right rotation helicla flute
Cutting unit is constituted, cutting edge number increases to 24, improves stock-removing efficiency relative to milling cutters such as twolip, four swords to a certain extent
And processing quality, reduce Milling Force.While in order to increase the cutting depth of micro- tooth cutting, improve processing efficiency, Dalian University of Science & Engineering
" the micro- tooth milling cutter of multiple-cutting-edge for carbon fibre composite high speed milling " of university Wang Fuji et al. invention, the number of applying for a patent
201610806761.5, it is designed by negative rake and big auxiliary angle, is aided with the increase of micro- tooth cutting edge length, improved single micro-
The intensity of tooth.However micro- tooth Design Milling of foregoing invention patent does not consider influence of micro- tooth row cloth to cutting edge edge breakage,
If micro- tooth row cloth is unreasonable, micro- tooth edge cracky will lead to, to reduce processing quality and cutter life.
Summary of the invention
The invention solves problem be inhibit high-performance carbon fibre composite material high-speed Milling Process when micro- tooth weakness side
Tipping and abrasion at edge, to improve milling cutter tool service life and cutting ability.A kind of inhibit to cut when multiple material processing for this purpose, having invented
Cut the milling cutter multiple-cutting-edge arrangement design method of sword edge breakage.By determining milling cutter key structural parameters, pass through cutter structure geometry
Relationship is calculated at micro- tooth edge and forward laps, and the cutting that edge can be effectively reduced in micro- tooth two edges overlapping arrangement mode is thick
Degree to avoid the phenomenon that easy tipping occur in weak edge, and is based on 3 d modeling software SolidWorks, and verifying should
The accuracy for design method of arranging realizes that high-speed smooth is effectively processed under the big cutting data of carbon fibre composite.
Technical solution of the present invention:
A kind of micro- tooth row cloth design method inhibiting the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge, by 3 D stereo milling cutter edge
It is unfolded after axially splitting, effective cutting tip of selection characterization arrangement mode is formed with the tangential and axial two dimension for coordinate system
The micro- tooth layout of milling cutter, wherein axial for along the direction of milling cutter knife length, axial forward direction is to be directed toward the side of knife handle along cutting edge
To.Right hand helix slot 1 and left-handed chip dividing groove 2 are staggered to form micro- tooth 3, and micro- tooth 3 includes lower edge portion 4 and upper rim 5；Milling
Knife design process, tool geometrical parameter it is known that the length A of micro- tooth 3, the groove width B of right hand helix slot 1, right hand helix slot 1 spiral
Angle θ, milling cutter sword number Z1, milling cutter diameter D, and the arrangement mode of micro- tooth 3 is mainly by variable: the tangential length d of left-handed chip dividing groove 2, micro-
3 between cog width c of tooth, the helixangleβ of left-handed chip dividing groove 2, micro- tooth 3 tangential length f, left-handed 2 slot number Z of chip dividing groove2It determines；Specifically set
It is as follows to count method and step:
Step 1: by milling cutter diameter D and milling cutter sword number Z1, calculate micro- 3 between cog width c of tooth；
Step 2: choosing the tangential length d of left-handed chip dividing groove 2 as independent variable parameter, with 1 groove width B of right hand helix slot and a left side
Triangle is established on rotation 2 side tangential length d of chip dividing groove, by the triangle geometry relationship, calculates left-handed chip dividing groove helixangleβ；
Similarly, triangle is established using micro- 3 length A of tooth and the tangential length f of micro- tooth 3 as side length, by the triangle geometry relationship,
Calculate the tangential length f of micro- tooth and left-handed chip dividing groove slot number Z2；
F=(π × D ÷ Z2)-d (4)
Step 3: judging whether to meet relationship d < c < f, if satisfied, the then lower edge portion 4 of each micro- tooth 3 and top edge
Part 5 is covered by previous micro- 3 cutting edge of tooth, the mode of overlapping arrangement at micro- 3 two edges of tooth is formed, if not satisfied, then returning to
Step 2 chooses the tangential length d of chip dividing groove again.
The beneficial effects of the invention are as follows invented a kind of milling cutter multiple-cutting-edge row for inhibiting to answer cutting edge edge breakage when material is processed
Cloth design method before edge removes material, always has previous micro- tooth to complete to material in milling carbon fibre composite
Part removal, therefore, this arrangement mode can reduce the thickness of cutting at micro- tooth two edges, so that it is broken to reduce weak edge
Damage, under long cutting stroke, guarantees the outstanding cutting ability of micro- tooth.In addition, which solves because chip dividing groove can not be cut
The problem of causing thickness of cutting accumulation to increase except material, guarantee that micro- tooth thickness of cutting is relatively uniform, reduces high-speed milling carbon fiber
Cutter flutter when composite material is tieed up, cutter life is improved, the cutter changing time is reduced, to improve processing efficiency and surface matter
Amount.The milling cutter of the arrangement mode not only can guarantee that milling cutter had a good chip removal performance, but also relatively steady when with the cutting of continuous sword
It is qualitative, can satisfy to different fiber ranks, different-thickness, a variety of ply sequence carbon fibers answer material product it is high-quality, efficiently plus
Work demand.
Detailed description of the invention
Fig. 1 is micro- tooth two edges overlapping arrangement mode calculation flow chart；
Fig. 2 is micro- tooth two edges overlapping arrangement mode expanded view；
Fig. 3 is the three-dimensional cutter of embodiment 1；
Fig. 4 is the three-dimensional cutter of embodiment 2.
In figure: 1 helicla flute；2 chip dividing grooves；3 micro- teeth；4 lower edge portions；5 upper rims；
The micro- tine length of A；B chip dividing groove width；The helical angle of θ right hand helix slot；Z1Milling cutter sword number；D milling cutter diameter；D points of bits
The tangential length of slot；The micro- tooth between cog width of c；The helical angle of the left-handed chip dividing groove of β；The tangential length of the micro- tooth of f；Z2Chip dividing groove slot number.
Specific embodiment
With reference to the accompanying drawing and technical solution, the specific embodiment that the present invention will be described in detail.
The milling cutter multiple-cutting-edge arrangement design method of cutting edge edge breakage, such as schemes when material processing is answered in a kind of inhibition of the present embodiment
Shown in 1, when Design Milling, considers to reduce burr damage and reduce axial thrust load, determine that cutter basic geometric parameters are as follows: dextrorotation
Helicla flute helixangleθ=15 °, the length A=1.3mm of micro- tooth 3, helicla flute groove width B=0.8mm, milling cutter sword number Z1=12, milling cutter
Diameter D=10mm chooses the tangential length d of chip dividing groove respectively1=2mm, d2=2.3mm determines micro- tooth between cog width c, left-handed point of bits
Slot helixangleβ, the micro- tangential length f of tooth, chip dividing groove slot number Z2, and analyze several different arrangement modes.Specific design method
Steps are as follows:
Step 1: by milling cutter diameter D and milling cutter sword number Z1, micro- tooth between cog width c=is calculated according to formula (1)
2.618mm。
Step 2: choosing the tangential length d of chip dividing groove respectively1=2mm, d2=2.3mm is counted respectively according to formula (2) (3) (4)
Calculate β1=66.7 °, β2=69.7 °, f1=3.25mm, f1=3.7375mm, Z21=6, Z22=5.
Step 3: the geometric parameter calculated by steps 1 and 2 analyzes the row of micro- tooth under the different values of the tangential length d of chip dividing groove
Mode for cloth:
At this point, meeting d1<c<f1, d2<c<f2, it is respectively formed the arrangement mode of micro- tooth two edges overlapping, it is soft based on three-dimensional drawing
Part SolidWorks can be designed above-mentioned two cutter, as shown in Figure 3,4, Fig. 3, along (cutting edge) on the left of milling cutter be directed toward right side in 4
The direction of (knife handle) is axial positive corresponding with milling cutter two-dimentional in Fig. 2, therefore, is able to achieve lower edge portion 4 and upper edge
Divide 5 arrangement modes Chong Die with previous micro- tooth.
The present invention is verified by accuracy of the 3 d modeling software SolidWorks to the design method, can be obtained
To the three-dimensional milling cutter model of micro- tooth two edges overlapping arrangement mode.Using speed of mainshaft 6000rpm, when amount of feeding 800mm/min,
Per tooth cutting depth is 0.011mm/z, in addition, the carbon fiber that the milling cutter of two edges overlapping arrangement mode is applied to 4mm thickness is answered
Condensation material Multidirectional Slabs Used milling experiment, experiment discovery: the milling cutter of micro- tooth two edges overlapping arrangement mode cuts sharpening after milling 2m
Damage uniformly, and without tipping phenomenon, can effectively avoid the tipping problem of micro- tooth edge, cut greatly to meet carbon fibre composite
Cut the effective process requirements of high-speed smooth under dosage.
Claims (1)
1. a kind of micro- tooth row cloth design method for inhibiting the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge, which is characterized in that will be three-dimensional
Three-dimensional milling cutter along axial direction split after be unfolded, effective cutting tip of selection characterization arrangement mode is formed with tangential and axial to sit
The micro- tooth layout of two-dimentional milling cutter of system is marked, right hand helix slot (1) and left-handed chip dividing groove (2) are staggered to form micro- tooth (3), micro- tooth (3)
Include lower edge portion (4) and upper rim (5)；Design Milling process, tool geometrical parameter it is known that micro- tooth (3) length
A, the groove width B of right hand helix slot (1), the helixangleθ of right hand helix slot (1), the helixangleβ of left-handed chip dividing groove (2), left-handed point of bits
Slot (2) slot number Z2, milling cutter sword number Z1, milling cutter diameter D；And the arrangement mode of micro- tooth (3) is mainly by variable: left-handed chip dividing groove (2) is cut
It is determined to length d, micro- tooth (3) between cog width c, the tangential length f of micro- tooth (3)；Steps are as follows for specific design method:
Step 1: by milling cutter diameter D and milling cutter sword number Z1, calculate micro- tooth (3) between cog width c；
Step 2: choosing the tangential length d of left-handed chip dividing groove (2) as independent variable parameter, with right hand helix slot (1) groove width B and a left side
Triangle is established on the tangential side length d of rotation chip dividing groove (2), by the triangle geometry relationship, calculates left-handed chip dividing groove (2) helical angle
β；
Similarly, triangle is established using the tangential length f of micro- tooth (3) length A and micro- tooth (3) as side length, by the triangle geometry relationship,
Calculate the tangential length f of micro- tooth (3) and the slot number Z of left-handed chip dividing groove (2)2；
F=(π × D ÷ Z2)-d (4)
Step 3: judging whether to meet relationship d < c < f, if satisfied, the then lower edge portion (4) of each micro- tooth (3) and top edge
Partially (5) are covered by previous micro- tooth (3) cutting edge, form the mode of overlapping arrangement at micro- tooth (3) two edges, if not satisfied,
It then returns to step 2 and chooses the tangential length d of chip dividing groove again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495696.8A CN108405946B (en) | 2018-05-17 | 2018-05-17 | Inhibit micro- tooth row cloth design method of the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810495696.8A CN108405946B (en) | 2018-05-17 | 2018-05-17 | Inhibit micro- tooth row cloth design method of the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge |
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| CN108405946A CN108405946A (en) | 2018-08-17 |
| CN108405946B true CN108405946B (en) | 2019-04-16 |
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| CN201810495696.8A Expired - Fee Related CN108405946B (en) | 2018-05-17 | 2018-05-17 | Inhibit micro- tooth row cloth design method of the micro- tooth milling cutter cutting edge edge breakage of multiple-cutting-edge |
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| CN109304507B (en) * | 2018-10-19 | 2024-04-05 | 厦门金鹭特种合金有限公司 | PCD milling cutter for processing carbon fiber composite material |
| CN114939693B (en) * | 2022-07-01 | 2023-10-20 | 重庆强锐科技有限公司 | Rapid design and performance optimization method for complex profile milling cutter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009196015A (en) * | 2008-02-20 | 2009-09-03 | Toray Ind Inc | Method of cutting fiber-reinforced plastic |
| CN101623778B (en) * | 2009-08-13 | 2011-08-03 | 沈阳飞机工业（集团）有限公司 | Integral carbide goldfish scale milling cutter |
| CN202045394U (en) * | 2010-12-31 | 2011-11-23 | 浙江瑞亨精密工具有限公司 | Diamond-shaped tooth milling cutter for machining multilayer printed circuit boards |
| GB201116755D0 (en) * | 2011-09-29 | 2011-11-09 | Technicut Ltd | Rotary cutting tool |
| CN104551171A (en) * | 2013-10-18 | 2015-04-29 | 常州市珠江工具有限公司 | Milling cutter |
| CN203936444U (en) * | 2014-06-26 | 2014-11-12 | 超美精密工业（惠州）有限公司 | A kind of welding milling cutter |
| CN107378009B (en) * | 2017-08-01 | 2019-04-09 | 大连理工大学 | A kind of micro- serrated knife tool of multi-ladder multiple-cutting-edge gradual change for carbon fibre composite drilling |
| CN107363312B (en) * | 2017-09-11 | 2019-04-23 | 大连理工大学 | Band edge sword slotting cutter for carbon fibre composite high-speed milling |
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