CN105583450A - Special cutter for processing large-diameter spiral milling holes of composite material and titanium-alloy laminated component - Google Patents
Special cutter for processing large-diameter spiral milling holes of composite material and titanium-alloy laminated component Download PDFInfo
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- CN105583450A CN105583450A CN201510963847.4A CN201510963847A CN105583450A CN 105583450 A CN105583450 A CN 105583450A CN 201510963847 A CN201510963847 A CN 201510963847A CN 105583450 A CN105583450 A CN 105583450A
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- cutting edge
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- angle
- cutter
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Classifications
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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
- B23C5/1009—Ball nose end mills
- B23C5/1018—Ball nose end mills with permanently fixed cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0407—Cutting angles
- B23C2210/0414—Cutting angles different
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
- B23C2210/203—Number of cutting edges four
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/52—Orbital drilling, i.e. use of a milling cutter moved in a spiral path to produce a hole
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a special cutter for processing large-diameter spiral milling holes of a composite material and a titanium-alloy laminated component. The special cutter comprises a cutter body consisting of a cutting edge part, a neck part and a cutter shank, wherein the cutting edge part is provided with four cutting edges with unequal distances; a side rake angle of the first cutting edge and a side rake angle of the third cutting edge are 7-9 degrees; a side rake angle of the second cutting edge and a side rake angle of the fourth cutting edge are 8-10 degrees; first side-edge clearance angles of the four cutting edges are 13-15 degrees; second side-edge clearance angles of the four cutting edges are 19-21 degrees; the length of the first side-edge clearance angles is 0.8-1.2mm; the spiral angles of the four cutting edges are 39-41 degrees; the cutting edge inclination angles of the four cutting edges of the cutter are 3-5 degrees; and the bottom edge of the first cutting edge and the bottom edge of the third cutting edge are provided with two edge strips. The force of cutting the composite material by the cutter is about 53 N, and the force of cutting a titanium-alloy by the cutter is about 248N, so that the service life of the cutter is prolonged.
Description
Technical field
The present invention relates to process the above major diameter helical milling of 19mm dedicated tool, particularly processing carbon fibre composite and titanium alloy module laminated body large diameter hole helical milling dedicated tool.
Background technology
Along with the development of aircraft industry, conventional borehole can not meet actual requirement, and helical milling is a kind of new processing mode, and crudy is better, and efficiency is higher. In process, the application of carbon fibre composite and titanium alloy module laminated body is more and more, in order to ensure working (machining) efficiency, assembly quality and surface quality, reply laminated material carries out integrated drilling, application to the above major diameter helical milling of 19mm dedicated tool is more and more frequent, and domestic do not have dedicated tool for the above large diameter hole helical milling of 19mm at present.
Denomination of invention is " carbon fibre composite and titanium alloy spiral hole milling dedicated tool ", publication number is that the Chinese patent of CN201220148618.9 discloses following content: disclose it and comprised the cutter hub being made up of cutting head, neck and handle of a knife, cutting head and neck are stepped, symmetrically on cutting head sidewall have four helicla flutes that extend to neck, four helicla flutes are with cutter hub central axis symmetry, cutting head edge at cutter neck is circumferentially evenly provided with four peripheral teeth, and the angle of the radial rake of each mill teeth is 4-6 °; The angle of radially first relief angle of each mill teeth is 14-16 °; The angle of radially second relief angle of each mill teeth is 18-22 °, between the cutting shear blade of each mill teeth and side edge, be connected by the first circular arc, fillet and the second circular arc successively, the angle of cutting shear blade and vertical curve is 3-5 °, has two through holes with cutter hub central axis symmetry in cutter hub. This Tool Design is not suitable for processing the above large diameter hole of 19mm, first selected anterior angle angle too small, and the cutting force being subject in the major diameter helical milling process more than processing 19mm can become greatly, affects the life-span of suface processing quality and cutter; What secondly, this Tool Design was not considered in high-speed machine tool processing, cutter to be caused trembles and cuts unstability; Finally, this cutter has only been considered the processing request of processing carbon fibre composite and titanium alloy veneer, is not optimized design for processing carbon fibre composite and titanium alloy module laminated body.
Denomination of invention is " machining composite material small diameter bore helical milling dedicated tool ", the patent No. is that 201510083667.7 Chinese patent discloses following content: the blade of cutter is provided with first, second, third not identical cutting edge of angle between two, the sword of three cutting edges is long different, the rear knife face of three cutting edges is the dual rear knife face with land, the shear blade skew center cutter linear distance of three cutting edges, the helical angle difference being formed by three cutting edges. First this tool diameter is 3mm, cannot process major diameter helical milling more than 19mm; Secondly, this cutter has three cutting edges, and sword number is very few, thereby has extended process time, affects cutter life; Finally this cutter only considers to process the processing request of carbon fibre composite, is not optimized design for processing carbon fibre composite and titanium alloy module laminated body.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, provide a kind of crudy better, carbon fibre composite does not have obvious lamination, the hole titanium alloy burr of processing is less than 0.08mm, titanium alloy roughness is less than 1.1 μ m, and carbon fibre composite surface roughness is less than machining composite material and the titanium alloy module laminated body major diameter helical milling dedicated tool of 2.0 μ m.
In order to achieve the above object, the technical solution used in the present invention is:
Processing carbon fibre composite of the present invention and titanium alloy module laminated body large diameter hole helical milling dedicated tool, it comprises the cutter hub being made up of cutting blade, neck and handle of a knife, described neck adopts necking down structure, be provided with four not equidistant cutting edges at cutter blade, wherein the first cutting edge and the second cutting edge angle are got 94 °～96 °, the second cutting edge and the 3rd cutting edge angle are got 82 °～84 °, the 3rd cutting edge and the 4th cutting edge angle are got 84 °～86 °, and the 4th cutting edge and the first cutting edge angle are got 96 °～98 °, the side edge anterior angle of the first described cutting edge and the 3rd cutting edge is got 7 °～9 °, the side edge anterior angle of the second cutting edge and the 4th cutting edge is got 8 °～10 °, side edge first relief angle of four cutting edges is got 13 °～15 °, side edge second relief angle of four cutting edges is got 19 °～21 °, the length of described side edge the first relief angle is 0.8～1.2mm, and described side edge the first relief angle and the total length of side edge the second relief angle are 1.6～2.4mm, the helical angle of four cutting edges is 39 °～41 °, cutter core is thick is 7.4mm～7.6mm, described recess diameter is 10.5mm～11.5mm, cutter diameter at edge part is 11.9～12.1mm, the cutting edge inclination of four cutting edges of cutter is 3 °～5 °, the shear blade of the first described cutting edge and the shear blade of the 3rd cutting edge have two lands, wherein the first margin width is got 1.1mm～1.3mm, shear blade first relief angle of the first described cutting edge and shear blade first relief angle of the 3rd cutting edge are got 4 °～6 °, and shear blade second relief angle of the first cutting edge and shear blade second relief angle of the 3rd cutting edge are got 9 °～11 °, the relief angle of the relief angle of the shear blade of the second described cutting edge and the shear blade of the 4th cutting edge is got 6 °～8 °.
Compared with existing invention, the present invention has following two aspect advantages:
This cutter adopts not equidistant cutting edge, the shear blade of shear blade the first cutting edge and the shear blade of the 3rd cutting edge to have two lands, the shear blade of the shear blade of two cutting edges and the 4th cutting edge has the method for designing of a land, avoid trembling with unstable of cutter, adopt four cutting edges simultaneously, can extend like this cutter life, reduce the operating pressure of each cutting edge; Current domestic helical milling dedicated tool does not have major diameter cutter, this cutter is that diameter is that the large cutter helical milling range of work of 12mm is larger, and crudy is better, ultrasonic C-scanning result does not have obvious lamination compared with other screw-on cutters of the same type, in addition the titanium alloy surface roughness of processing is less than 1.1 μ m, carbon fibre composite surface roughness is less than 2.0 μ m, and the maximum burr of titanium alloy of processing is less than 0.08mm; The side edge anterior angle of this cutter increases to 7 °～9 ° and 8 °～10 °, is more conducive to the processing of carbon fibre composite and titanium alloy module laminated body; Cutting axial force obviously declines compared with helical milling cutter of the same type, Tool in Cutting composite power of the same type is about 100N, and cutting titanium alloy power is about 500N, and this Tool in Cutting composite power is about 53N, cutting titanium alloy is about 248N, has extended the life-span of cutter.
Brief description of the drawings
Fig. 1Processing carbon fibre composite of the present invention and the signal of titanium alloy module laminated body large diameter hole helical milling dedicated tool overall structureFigure；
Fig. 2BeFig. 1The A-A section of shown cutterFigure；
Fig. 3BeFig. 2Shown in tool clearance 19 places part amplifyFigure；
Fig. 4That cutter end face is lookedFigure；
Fig. 5BeFig. 4Shown cutter B-B sectionFigure；
Fig. 6BeFig. 4The C-C section of shown cutterFigure；
Fig. 7It is Tool in Cutting force signal of the same typeFigure；
Fig. 8It is this Tool in Cutting force signalFigure。
Detailed description of the invention
Below in conjunction withAccompanying drawingDescribe the present invention with specific embodiment.
Processing carbon fibre composite of the present invention and titanium alloy module laminated body large diameter hole helical milling dedicated tool, it comprises by cutting blade 21, the cutter hub that neck 22 and handle of a knife 23 form, described neck adopts necking down structure, be provided with four not equidistant cutting edges at cutter blade, wherein the first cutting edge a and the second cutting edge b angle α get 94 °～96 °, the second cutting edge b and the 3rd cutting edge c angle β get 82 °～84 °, the 3rd cutting edge c and the 4th cutting edge d angle γ get 84 °～86 °, the 4th cutting edge d and the first cutting edge a angle theta are got 96 °～98 °, the first described cutting edge a and the side edge anterior angle 4 of the 3rd cutting edge c are got 7 °～9 °, the side edge anterior angle 5 of the second cutting edge b and the 4th cutting edge d is got 8 °～10 °, side edge first relief angle 6 of four cutting edges is got 13 °～15 °, side edge second relief angle 7 of four cutting edges is got 19 °～21 °, the length 8 of described side edge the first relief angle is 0.8～1.2mm, and described side edge the first relief angle and the total length 9 of side edge the second relief angle are 1.6～2.4mm, the helical angle 2 of four cutting edges is 39 °～41 °, and cutter core thick 20 is 7.4mm～7.6mm, and described recess diameter D2 is 10.5mm～11.5mm, and cutter diameter at edge part D1 is 11.9～12.1mm, and the cutting edge inclination 1 of four cutting edges of cutter is 3 °～5 °, the shear blade of the first described cutting edge a and the shear blade of the 3rd cutting edge c have two lands, wherein the first margin width 12 is got 1.1mm～1.3mm, shear blade first relief angle 10 of shear blade first relief angle of the first described cutting edge and the 3rd cutting edge is got 4 °～6 °, and shear blade second relief angle 11 of shear blade second relief angle of the first cutting edge and the 3rd cutting edge is got 9 °～11 °, and the relief angle 13 of the relief angle of the shear blade of the second described cutting edge and the shear blade of the 4th cutting edge is got 6 °～8 °.
Preferred four the chip pocket e that have in described cutting edge end surface symmetry, f, g, h, the 3rd chip pocket g between the first chip pocket e between the first described cutting edge and the 4th cutting edge and the second cutting edge and the 3rd cutting edge is identical, the first described chip pocket and the arc radius 16 of the 3rd chip pocket are got 0.1mm～0.2mm, the second chip pocket f between the 4th chip pocket h between the first cutting edge and the second cutting edge and the 3rd cutting edge and the 4th cutting edge is identical, the second described chip pocket and the connecting length of the 4th chip pocket 17 are 1.1mm～1.2mm, the second described chip pocket and the connection angle 18 of the 4th chip pocket are got 20 °～25 °, the first described chip pocket and the opening angle 14 of the 3rd chip pocket are got 60 °～65 °, the second described chip pocket and the opening angle 15 of the 4th chip pocket are got 60 °～65 °, the first described chip pocket, the second chip pocket, the angle 3 of the 3rd chip pocket and the 4th chip pocket and cutter hub central shaft is 42 °～48 °.
Preferred cutter overall length L1 is 85mm, and the long L3 of handle of a knife is 55mm, and the long L2 of blade is 20mm.
The cutter hub surface of preferred cutter scribbles TiAlSiN coating, and in TiA1N coating, adding the 4th group element has become the Disciplinary Frontiers of mouthful front cutter coat to improve the mechanical property of coating and heat endurance. And in these multi-element coatings, Si can significantly improve non-oxidizability, heat endurance and the hardness of TiAlN coating, therefore this coating can effectively reduce the lamination existing in processing, extends the life-span of cutter.
FromFig. 7Can find out Tool in Cutting carbon fibre composite veneer of the same type time, cutting force is about 100N, and when cutting titanium alloy veneer, cutting force is about 500N, fromFig. 8Can find out that this cutter cutting force in the time of processing carbon fibre composite and titanium alloy module laminated body is less, carbon fibre composite cutting force is about 53N, and titanium alloy cutting power is about 248N, and cutting force obviously reduces, make suface processing quality better, extended the life-span of cutter.
Claims (4)
1. processing carbon fibre composite and titanium alloy module laminated body large diameter hole helical milling dedicated tool, it comprises by cuttingThe cutter hub of blade, neck and handle of a knife composition, described neck adopts necking down structure, it is characterized in that: be provided with at cutter bladeFour not equidistant cutting edges, wherein the first cutting edge and the second cutting edge angle are got 94 °～96 °, the second cutting edge and the 3rdCutting edge angle is got 82 °～84 °, and the 3rd cutting edge and the 4th cutting edge angle are got 84 °～86 °, the 4th cutting edge and firstCutting edge angle is got 96 °～98 °; The side edge anterior angle of the first described cutting edge and the 3rd cutting edge is got 7 °～9 °, and secondThe side edge anterior angle of cutting edge and the 4th cutting edge is got 8 °～10 °, and side edge first relief angle of four cutting edges is got 13 °～15 °,Side edge second relief angle of four cutting edges is got 19 °～21 °, and the length of described side edge the first relief angle is 0.8～1.2mm, instituteSide edge the first relief angle of stating and the total length of side edge the second relief angle are 1.6～2.4mm; The helical angle of four cutting edges is 39 °～41 °, cutter core is thick is 7.4mm～7.6mm, and described recess diameter is 10.5mm～11.5mm, and cutter diameter at edge part is11.9～12.1mm, the cutting edge inclination of four cutting edges of cutter is 3 °～5 °, the shear blade of the first described cutting edge and the 3rd cuttingThe shear blade of sword has two lands, and wherein the first margin width is got 1.1mm～1.3mm, after the shear blade first of the first described cutting edgeShear blade first relief angle of angle and the 3rd cutting edge is got 4 °～6 °, and shear blade second relief angle of the first cutting edge and the 3rd cuttingShear blade second relief angle of sword is got 9 °～11 °, after the relief angle of the shear blade of the second described cutting edge and the shear blade of the 4th cutting edgeAngle is got 6 °～8 °.
2. processing carbon fibre composite according to claim 1 and titanium alloy module laminated body large diameter hole helical milling are specialWith cutter, it is characterized in that: at four chip pockets that have of described cutting edge end surface symmetry, the first described cutting edge withThe 3rd chip pocket between the first chip pocket between the 4th cutting edge and the second cutting edge and the 3rd cutting edge is identical, describedThe arc radius of the first chip pocket and the 3rd chip pocket is got 0.1mm～0.2mm, between the first cutting edge and the second cutting edgeThe second chip pocket between four chip pockets and the 3rd cutting edge and the 4th cutting edge is identical, and the second described chip pocket and the 4th holdsThe connecting length of bits groove is 1.1mm～1.2mm, and the second described chip pocket and the connection angle of the 4th chip pocket are got 20 °～25 °, the first described chip pocket and the opening angle of the 3rd chip pocket are got 60 °～65 °, the second described chip pocket andThe opening angle of four chip pockets is got 60 °～65 °, described the first chip pocket, the second chip pocket, the 3rd chip pocket and the 4thThe angle of chip pocket and cutter hub central shaft is 42 °～48 °.
3. processing carbon fibre composite according to claim 1 and 2 and the helical milling of titanium alloy module laminated body large diameter holeHole dedicated tool, is characterized in that: cutter overall length is the long 55mm of being of 85mm, handle of a knife, and cutting edge minister is 20mm.
4. processing carbon fibre composite according to claim 3 and titanium alloy module laminated body large diameter hole helical milling are specialWith cutter, it is characterized in that: described cutter hub surface scribbles TiAlSiN coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963847.4A CN105583450A (en) | 2015-12-18 | 2015-12-18 | Special cutter for processing large-diameter spiral milling holes of composite material and titanium-alloy laminated component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963847.4A CN105583450A (en) | 2015-12-18 | 2015-12-18 | Special cutter for processing large-diameter spiral milling holes of composite material and titanium-alloy laminated component |
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| Publication Number | Publication Date |
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| CN105583450A true CN105583450A (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510963847.4A Pending CN105583450A (en) | 2015-12-18 | 2015-12-18 | Special cutter for processing large-diameter spiral milling holes of composite material and titanium-alloy laminated component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881601A (en) * | 2016-04-19 | 2016-08-24 | 汤良波 | Noodle cutting tool for noodle cutting machine |
| CN106270702A (en) * | 2016-10-25 | 2017-01-04 | 哈尔滨理工大学 | A kind of monoblock type hard alloy profile milling cutter with curve sword |
| CN107262796A (en) * | 2017-05-19 | 2017-10-20 | 天津大学 | One kind is suitable to industrial robot module laminated body helical milling Special compound tool |
| CN113967758A (en) * | 2020-07-22 | 2022-01-25 | 上海飞机制造有限公司 | Spiral milling cutter |
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| CN201524832U (en) * | 2009-09-15 | 2010-07-14 | 无锡国宏硬质合金模具刃具有限公司 | Spiral milling cutter with four unequal edges |
| CN102101193A (en) * | 2009-12-18 | 2011-06-22 | 山特维克知识产权股份有限公司 | A device for milling of materials |
| CN202571427U (en) * | 2012-04-10 | 2012-12-05 | 天津大学 | Special tool for helical milling of carbon fiber composites and titanium alloys |
| CN103008745A (en) * | 2012-11-21 | 2013-04-03 | 大连经济技术开发区伊达工具有限公司 | End mill used for processing titanium alloy |
| CN203292571U (en) * | 2013-06-24 | 2013-11-20 | 无锡国宏硬质合金模具刃具有限公司 | Milling cutter with four blades unequal |
| CN104708098A (en) * | 2015-02-16 | 2015-06-17 | 天津大学 | Special cutter for machining small-diameter pore helical milling of composite material |
| CN105127487A (en) * | 2015-09-08 | 2015-12-09 | 广州番禺职业技术学院 | Miniature four-blade drill bit and machining method thereof |
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2015
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Patent Citations (9)
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| JP2000146532A (en) * | 1998-11-05 | 2000-05-26 | Mitaka Koki Co Ltd | Non-contact measuring method for dimension by automatic focus of laser |
| CN101323027A (en) * | 2008-07-22 | 2008-12-17 | 大连大学 | Knife tool chip breaker |
| CN201524832U (en) * | 2009-09-15 | 2010-07-14 | 无锡国宏硬质合金模具刃具有限公司 | Spiral milling cutter with four unequal edges |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881601A (en) * | 2016-04-19 | 2016-08-24 | 汤良波 | Noodle cutting tool for noodle cutting machine |
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| CN106270702A (en) * | 2016-10-25 | 2017-01-04 | 哈尔滨理工大学 | A kind of monoblock type hard alloy profile milling cutter with curve sword |
| CN107262796A (en) * | 2017-05-19 | 2017-10-20 | 天津大学 | One kind is suitable to industrial robot module laminated body helical milling Special compound tool |
| CN113967758A (en) * | 2020-07-22 | 2022-01-25 | 上海飞机制造有限公司 | Spiral milling cutter |
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Application publication date: 20160518 |