CN109128323A - A kind of double helix side edge milling cutter towards composite material hole milling - Google Patents
A kind of double helix side edge milling cutter towards composite material hole milling Download PDFInfo
- Publication number
- CN109128323A CN109128323A CN201810804622.8A CN201810804622A CN109128323A CN 109128323 A CN109128323 A CN 109128323A CN 201810804622 A CN201810804622 A CN 201810804622A CN 109128323 A CN109128323 A CN 109128323A
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- China
- Prior art keywords
- side edge
- hand screw
- composite material
- screw side
- double helix
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0485—Helix angles
- B23C2210/0492—Helix angles different
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
A kind of double helix side edge milling cutter towards composite material hole milling, including cutting side edge and shear blade, cutting side edge include two sections of rotation directions and sword long different left-hand screw side edge and right-hand screw side edge；Left-hand screw side edge is located above right-hand screw side edge, and the helical angle of right-hand screw side edge is 10 °~25 °, and the helical angle of left-hand screw angle sword is 40 °~60 °.The present invention considerably reduces manufacturing procedure, and one-pass molding improves processing quality and processing efficiency, and improves cutting ability of the cutter in composite material helical milling process, reduces the hole machined defect of composite material.
Description
Technical field
The present invention relates to double helix side edge helical milling dedicated tool more particularly to a kind of pairs towards composite material hole milling
Spiral side edge milling cutter.
Background technique
Composite material is led because of its specific strength and due to the excellent performance such as specific modulus height, corrosion resistant candle, high temperature resistant in aerospace
Domain is used widely, and the usage amount in aircraft has become the important indicator for measuring aeroplane performance.Because of overall performance
Particular/special requirement needs to meet the needs of different using a variety of different materials in aerospace manufacture, different materials in manufacturing process
Connection and assembly between material component just need to process a large amount of hole.Still when traditional drilling technique method is in machining composite material
Old to segment work step technique using multiple tracks such as " boring bottom outlet-reaming-is slightly cut with scissors-to finish ream ", production efficiency is low, and tool wear is serious.By
In composite material there are the material properties of anisotropy and stacking, hole machined easily generates burr, tearing and layering etc. in the process
Defect, thus raising composite material hole machined quality and processing efficiency become key.
Helical milling technique is a kind of emerging technique for aerospace difficult-to-machine material hole machined, knife in process
The motion profile of tool is a helix, and cutter carries out circumferential milling campaign while along axial feed, is one kind " to mill generation
The technique of brill " can effectively improve the processing quality in hole, but in the mistake for carrying out helical milling processing using conventional end mill
Still there is the higher cost of charp tool in Cheng Zhong, limit the popularization and application of the technology.Therefore, carry out aviation composite spiral
The research and development of hole milling dedicated tool are of great significance.
Existing helical milling dedicated tool mostly improves in the structure of conventional end mill, and conventional end mill exists
The cutting output of side edge is greater than end sword when processing, and side edge, which is prone to wear, in process causes processing quality to be deteriorated, composite material
Manufacturing deficiency increase.The principal element of hole machined quality is influenced when the side edge of cutter, existing research is mainly for knife end
The parameter and structure optimization of sword, it is relatively fewer for the research of cutter side edge parameter and tooth shape.Since cutting fluid can be to compound
The material property of material itself has an impact, therefore scene must use dry machining technology, and scene is still vertical using tradition
Milling cutter, cause helical milling technology application there is still the very big cost of charp tools.
Summary of the invention
The purpose of the present invention is to overcome the disadvantages of the prior art, provides a kind of double helix side towards composite material hole milling
Blade milling cutter.
To achieve the above object, the following technical solution is employed by the present invention:
A kind of double helix side edge milling cutter towards composite material hole milling, including cutting side edge and shear blade, cutting side edge include
Two sections of rotation directions and sword long different left-hand screw side edge and right-hand screw side edge；Left-hand screw side edge is located above right-hand screw side edge, right
The helical angle of spiral side edge is 10 °~25 °, and the helical angle of left-hand screw angle sword is 40 °~60 °.
A further improvement of the present invention lies in that the cutting edge of left-hand screw side edge and right-hand screw side edge is blunt circle.
A further improvement of the present invention lies in that the arc radius of the cutting edge of left-hand screw side edge and right-hand screw side edge is 0.03mm
~0.05mm.
A further improvement of the present invention lies in that the anterior angle of left-hand screw side edge and right-hand screw side edge is 5 °~10 °, left-hand screw side
The relief angle of sword and right-hand screw side edge is 12 °~15 °.
A further improvement of the present invention lies in that right-hand screw side edge length is the half of left-hand screw side edge length.
A further improvement of the present invention lies in that right-hand screw side edge length is 5mm~10mm, left-hand screw side edge length is 10mm
~20mm.
A further improvement of the present invention lies in that the diameter D of right-hand screw side edge1For 10mm, the diameter D of left-hand screw side edge2For
10mm。
A further improvement of the present invention lies in that the helical angle of right-hand screw side edge is 15 °, the helical angle of left-hand screw angle sword is
45°。
Compared with prior art, the invention has the benefit that
The present invention is composite material helical milling technique double helix side edge dedicated tool, and cutter is applied to aerospace field
During the hole machined of composite material, compared to traditional bore process, hence it is evident that reduce manufacturing procedure, one-pass molding improves
Processing quality and processing efficiency.Meanwhile the hole that cutter can be processed different-diameter.The side edge of cutter is designed to left side
Side double helix side edge, the helical angle of the right-hand screw side edge of cutter are low pitch angle, and the helical angle of left-hand screw angle sword is master screw
Angle, during the hole machined of composite material, the right-hand screw side edge below cutter squeezes fiber to the right, and left-hand screw
Side edge squeezes fiber along opposite direction, forms the structure of scissor-shaped, fiber is cut, to reduce molding hole
Veining defect and tearing defect, without device to hole carry out secondary operation.Cutting axial force and tradition of the cutter in process
Slotting cutter compared to relatively small, cutting axial force is the main reason for causing composite material lamination defect, therefore tool sharpening
Hole lamination defect is obviously less.
Further, cutter side edge cutting edge is blunt circle form, and cutting edge facilitates the cutting of composite fiber, is improved compound
The hole wall quality in material processing hole.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of composite material helical milling technique double helix side edge dedicated tool；
Fig. 2 is the side edge cutting edge schematic diagram of cutter shown in Fig. 1；Wherein, (a) is 3 dimensional drawing, is (b) the transversal of side edge
Face figure is (c) structural schematic diagram of the cutting edge of blunt circle form.
Fig. 3 is cutter helical milling process schematic diagram of the invention.Wherein, (a) is the mistake of right-hand screw flank milling
Journey (b) is completed for right-hand screw flank milling, the process that right-hand screw side edge portals, and (c) is the process of left-hand screw flank milling, (d)
For the completion of left-hand screw flank milling, the process that left-hand screw side edge portals.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Figure 1, the present invention is composite material helical milling technique double helix side edge dedicated tool, including cutting side edge
And shear blade, cutting side edge include two sections of rotation directions and sword long different left-hand screw side edge and right-hand screw side edge；Left-hand screw side edge position
Above right-hand screw side edge, cutter side edge tooth shape parameter mainly includes the angle of right-hand screw side edgeThe angle of left-hand screw side edgeThe diameter D of right-hand screw side edge1, the diameter D of left-hand screw side edge2, the long l of the sword of right-hand screw side edge1, the long l of the sword of left-hand screw side edge2。
The helicla flute of left-hand screw side edge and right-hand screw side edge is apart from shear blade l1Place's intersection, the angle of right-hand screw side edgeThe spiral of selection
Angle type is low pitch angle (10 °~25 °), and the angle after optimization is 15 °, the angle of left-hand screw side edgeThe helical angle class of selection
Type is large helix angle (40 °~60 °), and the angle after optimization is 45 °.It is wanted according to the carbon fibre composite plate thickness processed
It asks, right-hand screw side edge length l1For 5mm~10mm, right-hand screw side edge length l1For left-hand screw side edge length l2Half, it is left
Spiral side edge length l2For 10mm~20mm, the diameter D of right-hand screw side edge1For 10mm, the diameter D of left-hand screw side edge2For 10mm.
The design is by oppositely oriented spiral side edge machining composite material, by the not Tongfang of carbon fibre material two in process
To extruding, be conducive to the cutting of carbon fiber, to reduce the veining defect and tearing defect in composite processing hole.Spiral
The design at angle so that cutter is relatively small compared with traditional slotting cutter in the cutting axial force of process, thus reduce because
Cut the excessive caused composite material lamination defect of axial force.
In Fig. 2 shown in (a), (b) and (c), the side edge cutting edge after the optimization of this cutter is the cutting edge of blunt circle form, anterior angle γ
Preferably 5 °~10 °, relief angle α be preferably 12 °~15 °, rounded cutting edge radius r is preferably 0.03mm~0.05mm.After it is preferred that
Cutting edge can be more advantageous to cutting carbon fiber on the basis of guaranteeing tool stiffness, improve the processing quality of hole wall, reduce simultaneously
Cutting edge cuts damage caused by machined surface.
In Fig. 3 (a), (b), shown in (c) and (d), the process of this cutter helical milling machining composite material, shear blade and
Right-hand screw flank milling process, right-hand screw flank milling are completed, and left-hand screw side edge starts to process, left-hand screw flank milling hole wall mistake
Journey, left-hand screw side edge portal, and complete processing.The length of right-hand screw side edge is less than left-hand screw side edge, and right-hand screw flank milling is completed
Afterwards, left-hand screw side edge starts to carry out secondary operation, and left-hand screw side edge is conducive to carbon for the reverse extrusion effect of non-cut staple
The cutting of fiber, reduces the burr of composite material entrance, while reducing tearing for hole surface caused by non-cut staple
Split defect.The design of this structure is more preferable compared to traditional standard slotting cutter processing quality, while simultaneous manufacturing may be implemented, and mentions
High processing efficiency.
In the process of composite material, the side edge of dextrorotation presses downward to composite material, and then left-handed side edge is again
It pulls it, row cuts fiber at the structure of scissor-shaped, realizes the secondary operation of hole machined process, improves composite material hole and adds
The processing quality of work.Sharper side edge cutting edge parameter is selected, improves cutter in composite material helical milling process
Cutting ability, reduce burr, tearing and the lamination defect of the hole machined of composite material, improve the hole machined matter of composite material
Amount.
Claims (8)
1. a kind of double helix side edge milling cutter towards composite material hole milling, it is characterised in that: including cutting side edge and shear blade, cutting
Side edge includes two sections of rotation directions and sword long different left-hand screw side edge and right-hand screw side edge；Left-hand screw side edge is located at right-hand screw side edge
Top, the helical angle of right-hand screw side edge are 10 °~25 °, and the helical angle of left-hand screw angle sword is 40 °~60 °.
2. a kind of double helix side edge milling cutter towards composite material hole milling according to claim 1, it is characterised in that: left spiral shell
The cutting edge for revolving side edge and right-hand screw side edge is blunt circle.
3. a kind of double helix side edge milling cutter towards composite material hole milling according to claim 2, it is characterised in that: left spiral shell
The arc radius for revolving the cutting edge of side edge and right-hand screw side edge is 0.03mm~0.05mm.
4. a kind of double helix side edge milling cutter towards composite material hole milling according to claim 1, it is characterised in that: left spiral shell
The anterior angle for revolving side edge and right-hand screw side edge is 5 °~10 °, and the relief angle of left-hand screw side edge and right-hand screw side edge is 12 °~15 °.
5. a kind of double helix side edge milling cutter towards composite material hole milling according to claim 1, it is characterised in that: right spiral shell
Revolve the half that side edge length is left-hand screw side edge length.
6. a kind of double helix side edge milling cutter towards composite material hole milling according to claim 1 or 5, it is characterised in that:
Right-hand screw side edge length is 5mm~10mm, and left-hand screw side edge length is 10mm~20mm.
7. a kind of double helix side edge milling cutter towards composite material hole milling according to claim 1, it is characterised in that: right spiral shell
Revolve the diameter D of side edge1For 10mm, the diameter D of left-hand screw side edge2For 10mm.
8. a kind of double helix side edge milling cutter towards composite material hole milling according to claim 1, it is characterised in that: right spiral shell
The helical angle for revolving side edge is 15 °, and the helical angle of left-hand screw angle sword is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810804622.8A CN109128323A (en) | 2018-07-20 | 2018-07-20 | A kind of double helix side edge milling cutter towards composite material hole milling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810804622.8A CN109128323A (en) | 2018-07-20 | 2018-07-20 | A kind of double helix side edge milling cutter towards composite material hole milling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109128323A true CN109128323A (en) | 2019-01-04 |
Family
ID=64801452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810804622.8A Pending CN109128323A (en) | 2018-07-20 | 2018-07-20 | A kind of double helix side edge milling cutter towards composite material hole milling |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676627A (en) * | 2019-10-18 | 2021-04-20 | 佑能工具株式会社 | Radius end mill |
| CN116060679A (en) * | 2023-03-24 | 2023-05-05 | 长春工业大学 | Assembled cutter special for side milling of carbon fiber composite material |
| CN116079125A (en) * | 2023-04-10 | 2023-05-09 | 长春工业大学 | Special composite cutter for low-damage spiral milling and expanding of carbon fiber composite material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06246525A (en) * | 1993-02-24 | 1994-09-06 | Nisshin Koki Kk | End mill |
| CN202239847U (en) * | 2011-07-04 | 2012-05-30 | 沈阳飞机工业（集团）有限公司 | Numerical control end milling cutter for burr-free processing composite material |
| CN203390279U (en) * | 2013-08-26 | 2014-01-15 | 浙江浪潮精密机械有限公司 | Solid carbide left-right screw composite milling cutter |
| CN203900587U (en) * | 2014-03-14 | 2014-10-29 | 沈阳飞机工业（集团）有限公司 | Left-and-right-handed spiral groove milling cutter |
| CN206277477U (en) * | 2016-12-26 | 2017-06-27 | 浙江瑞亨精密工具有限公司 | A kind of blade milling cutter of double helix two |
-
2018
- 2018-07-20 CN CN201810804622.8A patent/CN109128323A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06246525A (en) * | 1993-02-24 | 1994-09-06 | Nisshin Koki Kk | End mill |
| CN202239847U (en) * | 2011-07-04 | 2012-05-30 | 沈阳飞机工业（集团）有限公司 | Numerical control end milling cutter for burr-free processing composite material |
| CN203390279U (en) * | 2013-08-26 | 2014-01-15 | 浙江浪潮精密机械有限公司 | Solid carbide left-right screw composite milling cutter |
| CN203900587U (en) * | 2014-03-14 | 2014-10-29 | 沈阳飞机工业（集团）有限公司 | Left-and-right-handed spiral groove milling cutter |
| CN206277477U (en) * | 2016-12-26 | 2017-06-27 | 浙江瑞亨精密工具有限公司 | A kind of blade milling cutter of double helix two |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676627A (en) * | 2019-10-18 | 2021-04-20 | 佑能工具株式会社 | Radius end mill |
| CN112676627B (en) * | 2019-10-18 | 2024-05-17 | 佑能工具株式会社 | Radius end mill |
| CN116060679A (en) * | 2023-03-24 | 2023-05-05 | 长春工业大学 | Assembled cutter special for side milling of carbon fiber composite material |
| CN116079125A (en) * | 2023-04-10 | 2023-05-09 | 长春工业大学 | Special composite cutter for low-damage spiral milling and expanding of carbon fiber composite material |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20190104 |