CN105436577A - Fiber reinforced composite material perforation cutter based on electroplated diamond - Google Patents
Fiber reinforced composite material perforation cutter based on electroplated diamond Download PDFInfo
- Publication number
- CN105436577A CN105436577A CN201510934310.5A CN201510934310A CN105436577A CN 105436577 A CN105436577 A CN 105436577A CN 201510934310 A CN201510934310 A CN 201510934310A CN 105436577 A CN105436577 A CN 105436577A
- Authority
- CN
- China
- Prior art keywords
- cutter
- face
- arc milling
- milling portion
- chip area
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- 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
- B23B2226/27—Composites
-
- 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
- B23B2226/31—Diamond
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/08—Side or plan views of cutting edges
- B23B2251/082—Curved cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
Abstract
The invention discloses a fiber reinforced composite material perforation cutter based on electroplated diamond. The cutter comprises a cutter bit arranged at the front end of a cutter bar and electroplated with diamond particles on the surface; the cutter bit includes multiple arc cutting parts and multiple chip removing grooves uniformly distributed in the radial direction; the arc cutting parts and the chip removing parts are staggered in the peripheral direction; the outer surfaces of all the arc cutting parts are one part of the same cylindrical surface; a center drill is arranged in a cylindrical space formed by the inner sides of the multiple arc cutting parts; each arc cutting part includes a back cutter surface and a front cutter surface; the back cutter surfaces are overlapped with the end faces, where the back cutter surfaces are positioned, of the corresponding arc cutting parts; the front cutter surfaces and one side surfaces of the chip removing grooves share one surfaces; the normal direction of the front cutter surfaces is consistent with the rotating linear speed of the cutter bit; arc main cutting edges are arranged in the cross places of the front cutter surface and the back cutter surface; and chip pre-storing grooves communicated with the multiple chip removing grooves are formed between the arc cutting parts and the center drill. The cutter can eliminate such phenomenon as easy generation of layering, tearing and burrs during drilling of fiber reinforced composite materials.
Description
Technical field
The present invention relates to a kind of drilling tool, be specifically related to the fibre reinforced composites drilling cutter based on electroplated diamond.
Background technology
Composite refers to the material combined by different way by two or more different material, it has that quality is light, specific strength is high, specific stiffness is large, vibration damping and the plurality of advantages such as anti-fatigue performance is good, corrosion-resistant, is widely used in the fields such as Aero-Space, communications and transportation, biologic medical and sports goods.Along with developing rapidly and increasingly extensive application of composite, the shaping and processing of composite product also becomes more and more important.Boring is one of most important manufacturing procedure in composite material manufacturing process, because composite has the features such as hardness is high, intensity large, poor thermal conductivity, anisotropy, interlaminar strength are low, easily occur tearing in boring procedure, the problem such as burr and layering, workpiece surface quality is caused to decline, again due to anisotropic existence, friction generates heat for cutter and surface of the work, and cutting force is very large, and tool wear is serious
[1 ~ 3].
A lot of research is done to fiber reinforcement based composites drilling tool both at home and abroad, be mainly concerned with the design of optimization cutter structure, adopt the popular domain such as advanced cutter material, newly-increased surface-coating technology.Wherein fiber reinforcement based composites drilling tool material with carbide alloy, polycrystalline diamond and both be combined into master.Hard alloy cutter can form various geometry by sharpening, thus prevents layering and fast shut-off fiber, but the wear resistance of hard alloy cutter is not enough, and cutting edge wearing and tearing passivation will cause drilling Quality Down.Polycrystal diamond cutter, after integral sintered with carbide alloy, then carries out sharpening, can obtain the cutting edge of high rigidity and high strength, thus cut staple well, but polycrystal diamond cutter shock resistance is poor, easily produces tipping.Coat diamond coatings at carbide tool surface and can well improve the intensity of cutter, hardness and wearability, obtain low coefficient of friction simultaneously, and then improve machined surface quality and reduce the generation of various defect.Other the research in change cutter structure, as the improvement optimal design etc. to tool nose sword and blade type, although decrease the generation of the various defect of finished surface and improve machined surface quality, the aspects such as the wear resistance of cutter and service life can not well be improved
[4].
Bibliography:
[1] Zhang Houjiang, Chen Wuyi, Chen Dingchang; Drilling processing [J] of fiber reinforcement based composites. New Technologies, 1998.
[2] Wei Wei, Wei Hongjin; Fiber reinforcement based composites high-quality drill process [J]. Nanjing Aero-Space University's journal, 2009.
[3] Cui Xiliang, Tian Biao, Wang Yongguo; The defect analysis [J] of fiber reinforcement based composites Drilling operation. electromechanical engineering, 2013.
[4] bright big, Wang Changying, Chen Ming; Fibre reinforced composites drilling cutting-tool engineering progress [J]. aero-manufacturing technology, 2013.
Summary of the invention
The object of the present invention is to provide a kind of fibre reinforced composites drilling cutter based on electroplated diamond, fiber reinforcement based composites Drilling operation in prior art can be solved and easily occur layering, tear the technical problem with phenomenons such as burrs.
In order to solve the problems of the technologies described above, the invention provides a kind of fibre reinforced composites drilling cutter based on electroplated diamond, comprise cylindrical knife bar, the front end of described knife bar is provided with the cutter head that surface electrical is coated with diamond particles, described cutter head comprises multiple arc milling portion of radial equipartition and multiple chip area, arc milling portion and chip area are according to circumferential interlaced arrangement, and the outer surface in all arc milling portions is the part on the same face of cylinder; Being provided with centre drill by the cylindrical space formed inside multiple arc milling portion, described arc milling portion and centre drill are all positioned at the front end of cutter head, described chip area and cutter head isometric; Each arc milling portion comprises rear knife face and rake face; Described rear knife face overlaps with the end face in arc milling portion, place; A side of described rake face and chip area is coplanar, and the normal direction of described rake face is consistent with cutter head linear velocity direction; The infall of described rake face and described rear knife face is the main cutting edge of circular arc; The prestore bits groove through with multiple chip area is provided with between described arc milling portion and centre drill.
The present invention is based on the fibre reinforced composites drilling cutter of electroplated diamond, wherein, the body shape of described centre drill is a round platform, and the cone angle of described round platform is 5 ° ~ 30 °, and the front end face of described round platform is sphere.The number of described arc milling portion and chip area is three, and the shape of cross section in each arc milling portion is the sector of 120 ° respectively.Angle between the end face in described arc milling portion and the axial direction of knife bar is-70 ° ~+70 °, is preferably 90 °.
Compared with prior art, the invention has the beneficial effects as follows:
(1) cutter head of the present invention has the truncated cone-shaped centre drill of multiple equally distributed arc milling portion and arc milling portion central position, this cutter is used to carry out boring (holes drilled through) processing of fiber reinforcement based composites, centre drill wherein first carries out preprocessing to the material component be cut, slow down inter-laminar stress, and prevent chip from piling up, thus reduce the generation of the defects such as composite layering in boring, sur-face peeling and burr, and improve composite drilling efficiency;
(2) because two sides in each arc milling portion, cutter head front end can with the direction of rotation of cutter respectively as rake face, namely each cutting portion all has two main cutting edges, adds cutting-tool's used life;
(3) adopt the bits groove that prestores to connect multiple chip area, reduce cutting force, increase chip removal and heat-sinking capability, extend cutting-tool's used life further;
(4) for whole tool bit part, diamond particles on plated surface, effectively adds the intensity of cutter, hardness, wearability, reduce to rub simultaneously and examine coefficient, thus improve machined surface quality, reduce the generation of manufacturing deficiency, improve cutting-tool's used life simultaneously.
Accompanying drawing explanation
Fig. 1 is the front view of the fibre reinforced composites drilling cutter that the present invention is based on electroplated diamond;
Fig. 2 is the left view of electroplated diamond cutter shown in Fig. 1;
Fig. 3 is the stereo profile schematic diagram of electroplated diamond cutter of the present invention;
Fig. 4 is the shaft side figure of electroplated diamond cutter shown in Fig. 3.
In figure: 1-cutter head, 2-knife bar, knife face after 3-, 4-main cutting edge, 5-rake face, 6-prestores bits groove, 7-centre drill, 8-chip area, 9-diamond particles.
Detailed description of the invention
Be described in further detail technical solution of the present invention below in conjunction with the drawings and specific embodiments, described specific embodiment only explains the present invention, not in order to limit the present invention.
As depicted in figs. 1 and 2, a kind of fibre reinforced composites drilling cutter based on electroplated diamond of the present invention, comprises cylindrical knife bar 2, and the front end of described knife bar 2 is provided with the cutter head 1 that surface electrical is coated with diamond particles 9, the length of cutter head 1 is determined to can be 15 ~ 25mm as required, as shown in Figure 4, described cutter head 1 comprises multiple arc milling portion and multiple chip area 8 of radial equipartition, arc milling portion and chip area 7 are according to circumferential interlaced arrangement, the outer surface in all arc milling portions is the part on the same face of cylinder, the quantity in arc milling portion is preferably 3 or 4, the shape of cross section in each arc milling portion is sector respectively, the width of chip area 8 can be 1.5 ~ 2.5mm, the degree of depth of chip area 8 can be 1.5 ~ 2.5mm, being provided with centre drill 7 by the cylindrical space formed inside multiple arc milling portion, the body shape of described centre drill 7 is a round platform, round platform cone angle can be taken as 5 ° ~ 30 ° according to frustum cone height difference, three embodiments of the present invention are taken as 5 ° respectively, 22 ° and 27 °, the front end face of described round platform is sphere, as shown in Figure 3, described arc milling portion and centre drill 7 are all positioned at the front end of cutter head, and described chip area 8 is isometric with cutter head, each arc milling portion comprises rear knife face 3 and rake face 5, described rear knife face 3 overlaps with the end face in arc milling portion, place, angle between the end face of described cutting portion and the axial direction of knife bar is-70 ° ~+70 °, and namely, the angle of knife face is-20 ° ~+20 °, described rake face 5 is coplanar with a side of chip area 8, and the normal direction of described rake face 5 is consistent with cutter head linear velocity direction, described rake face 5 and the infall of described rear knife face 3 are the main cutting edge 4 of circular arc, be provided with between described arc milling portion and centre drill 7 and consider groove 6 to be worth doing with through the prestoring of multiple chip area 8, the bits groove 6 that namely prestores is for connecting all chip areas 8, and the degree of depth of the bits groove 6 that prestores can be 1.5 ~ 2.5mm,
As shown in Figure 3, in electroplated diamond cutter embodiment 1 of the present invention, the length of cutter head 1 is 15mm; The number of described cutting portion and chip area 8 is three, and 3 cross sections that are circumferentially uniformly distributed around cutter head are fan-shaped cutting portion, each fan-shaped sector being 120 °, and the quantity in arc milling portion is 3; The width of chip area 8 is 2mm, and the degree of depth of chip area 8 is 1.5mm; Prestore bits groove 6 for connecting all chip areas 8, and the degree of depth of the bits groove 6 that prestores is 1.5mm; The radius of corner of main cutting edge 4 is 0.5mm; The inclination angle of the rear knife face 3 in the present invention is 0 °, the rear knife face 3 place plane in arc milling portion gives prominence to 0.5mm than the plane of place foremost of truncated cone-shaped centre drill 7, the rear end diameter of truncated cone-shaped centre drill 7 is 1.5mm, and point diameter is 1mm, and the round platform cone angle of described truncated cone-shaped centre drill 7 is 5 °.
Embodiment 2: identical with the overall structure of embodiment 1, major parameter is also substantially identical, difference is only: the rear knife face 3 place plane in arc milling portion and the co-planar of place foremost of truncated cone-shaped centre drill 7, the point diameter of truncated cone-shaped centre drill 7 is 1mm, and the round platform cone angle of described truncated cone-shaped centre drill 7 is 22 °.
Embodiment 3: identical with the overall structure of embodiment 1, major parameter is also substantially identical, difference is only: the plane of place foremost of truncated cone-shaped centre drill 7 gives prominence to 0.5mm than the rear knife face 3 place plane in arc milling portion, the point diameter of truncated cone-shaped centre drill 7 is 1mm, and the round platform cone angle of described truncated cone-shaped centre drill 7 is 27 °.
The basic material of cutter of the present invention elects metal material as, and as selected No. 45 steel, diamond particles 9 on plated surface again after modified and surface hardening process, cutter hardness of the present invention is high, intensity large, good heat resistance and the advantage such as drilling performance is good.
Although invention has been described by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.
Claims (5)
1., based on a fibre reinforced composites drilling cutter for electroplated diamond, comprise cylindrical knife bar (2), it is characterized in that:
The front end of described knife bar (2) is provided with the cutter head (1) that surface electrical is coated with diamond particles (9),
Described cutter head (1) comprises multiple arc milling portion and multiple chip area (7) of radial equipartition, arc milling portion and chip area (8) are according to circumferential interlaced arrangement, and the outer surface in all arc milling portions is the part on the same face of cylinder; Being provided with centre drill (7) by the cylindrical space formed inside multiple arc milling portion, described arc milling portion and centre drill (7) are all positioned at the front end of cutter head, and described chip area (8) is isometric with cutter head;
Each arc milling portion comprises rear knife face (3) and rake face (5);
Described rear knife face (3) overlaps with the end face in arc milling portion, place;
Described rake face (5) is coplanar with a side of chip area (8), and the normal direction of described rake face (5) is consistent with cutter head linear velocity direction;
Described rake face (5) and the infall of described rear knife face (3) are the main cutting edge (4) of circular arc;
Be provided with between described arc milling portion and centre drill (7) and consider groove (6) to be worth doing with through the prestoring of multiple chip area (8).
2. according to claim 1 based on the fibre reinforced composites drilling cutter of electroplated diamond, it is characterized in that: the body shape of described centre drill (7) is a round platform, the cone angle of described round platform is 5 ° ~ 30 °, and the front end face of described round platform is sphere.
3. according to claim 1 or 2 based on the fibre reinforced composites drilling cutter of electroplated diamond, it is characterized in that: the number of described arc milling portion and chip area (8) is three, the shape of cross section in each arc milling portion is 120 respectively
dsector.
4. according to claim 1 or 2 based on the fibre reinforced composites drilling cutter of electroplated diamond, it is characterized in that: the angle between the end face in described arc milling portion and the axial direction of knife bar is-70 ° ~+70 °.
5. according to claim 4 based on the fibre reinforced composites drilling cutter of electroplated diamond, it is characterized in that: the end face in described arc milling portion and the axial vertical of knife bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934310.5A CN105436577A (en) | 2015-12-15 | 2015-12-15 | Fiber reinforced composite material perforation cutter based on electroplated diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934310.5A CN105436577A (en) | 2015-12-15 | 2015-12-15 | Fiber reinforced composite material perforation cutter based on electroplated diamond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105436577A true CN105436577A (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510934310.5A Pending CN105436577A (en) | 2015-12-15 | 2015-12-15 | Fiber reinforced composite material perforation cutter based on electroplated diamond |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443434A (en) * | 2017-08-25 | 2017-12-08 | 陕西飞机工业（集团）有限公司 | A kind of composite method for drilling |
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| CN204209192U (en) * | 2014-08-30 | 2015-03-18 | 哈尔滨理工大学 | The Brazed diamond grinding wheel of processing carbon fibre composite |
| CN204657577U (en) * | 2015-06-10 | 2015-09-23 | 范志甫 | A kind of high rigidity hole making drill |
| CN205414508U (en) * | 2015-12-15 | 2016-08-03 | 中国民航大学 | Fibre reinforced composite makes spot facing cutter based on electrodeposited diamond |
-
2015
- 2015-12-15 CN CN201510934310.5A patent/CN105436577A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2471458Y (en) * | 2001-04-19 | 2002-01-16 | 杨世松 | Guided large diametric drill bit for hand drill |
| CN2576454Y (en) * | 2002-10-28 | 2003-10-01 | 陈怀荣 | Turbine diamond drill-bit |
| JP2006297507A (en) * | 2005-04-18 | 2006-11-02 | Asahi Diamond Industrial Co Ltd | Core drill and its manufacturing method |
| CN101088686A (en) * | 2006-06-01 | 2007-12-19 | 珠海天威技术开发有限公司 | Cutter for machining ribbon ink roller |
| CN201519787U (en) * | 2009-09-11 | 2010-07-07 | 镇江益林金刚石工具有限公司 | Drilling tool for punching |
| EP2489488A1 (en) * | 2011-02-21 | 2012-08-22 | wolfcraft GmbH | Diamond hole saw with central driller and stop |
| CN102390093A (en) * | 2011-09-27 | 2012-03-28 | 泉州市洛江区双阳金刚石工具有限公司 | Diamond drill bit |
| CN202861479U (en) * | 2012-09-17 | 2013-04-10 | 河南金宜精密磨具有限公司 | Driller with smashing teeth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107443434A (en) * | 2017-08-25 | 2017-12-08 | 陕西飞机工业（集团）有限公司 | A kind of composite method for drilling |
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Application publication date: 20160330 |
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