CN205414508U - Fibre reinforced composite makes spot facing cutter based on electrodeposited diamond - Google Patents

Fibre reinforced composite makes spot facing cutter based on electrodeposited diamond Download PDF

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Publication number
CN205414508U
CN205414508U CN201521054532.XU CN201521054532U CN205414508U CN 205414508 U CN205414508 U CN 205414508U CN 201521054532 U CN201521054532 U CN 201521054532U CN 205414508 U CN205414508 U CN 205414508U
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China
Prior art keywords
face
arc milling
fibre reinforced
milling portion
cutter
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Expired - Fee Related
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CN201521054532.XU
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Chinese (zh)
Inventor
刘礼平
戚春亮
徐建新
于洪
余芬
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Civil Aviation University of China
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Civil Aviation University of China
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Abstract

The utility model discloses a fibre reinforced composite makes spot facing cutter based on electrodeposited diamond, including setting up the tool bit that has the diamond granule in the surface electroplating of cutter arbor front end, the tool bit includes a plurality of arc cutting portions and a plurality of chip groove of radial equipartition, and arc cutting portion and chip groove are the partly of the same face of cylinder according to circumference staggered arrangement, the surface of all arc cutting portions, centre drill is being equipped with in the inboard round cylindrical space who forms by a plurality of arc cutting portions, every arc cutting portion is including back knife face and rake face, back knife face coincides with the terminal surface of place arc cutting portion, a side coplane of rake face and chip groove, the normal direction of rake face is unanimous with tool bit cycloid speed direction, the cross section of front and back knife face is convex main cutting edge, be equipped with the bits groove of lining up with a plurality of chip grooves that prestores between arc cutting portion and the centre drill. The utility model discloses the cutter can eliminate the easy layering that appears in the fiber reinforcement base combined material drilling processing, tear with phenomenon such as burr.

Description

A kind of fibre reinforced composites drilling cutter based on electroplated diamond
Technical field
This utility model relates to a kind of drilling tool, is specifically related to 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 light weight, specific strength is high, specific stiffness big, 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, transportation, biologic medical and sports goods.Along with developing rapidly and increasingly extensive application of composite, the molding of composite product also becomes more and more important with processing.Boring is one of most important manufacturing procedure in composite material manufacturing process, owing to composite has the features such as hardness is high, intensity is big, poor thermal conductivity, anisotropy, interlaminar strength are low, the problems such as tear, burr and layering easily occur in boring procedure, workpiece surface quality is caused to decline, again due to anisotropic existence, friction generates heat with surface of the work for cutter, and cutting force is very big, and tool wear is serious[1~3]
Both at home and abroad fiber reinforcement based composites drilling tool is done a lot of research, be mainly concerned with optimization cutter structure design, use the popular domains such as advanced cutter material, newly-increased surface-coating technology.Wherein the material of fiber reinforcement based composites drilling tool with hard alloy, polycrystalline diamond and both be combined into master.Carbide tool can form various geometries by sharpening, thus prevents layering fast shut-off fiber, but the wear resistance of carbide tool is not enough, and cutting edge abrasion passivation will result in drilling Quality Down.Polycrystal diamond cutter, after integral sintered with hard alloy, then sharpens, and can obtain the cutting edge of high rigidity and high intensity, 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 terms of changing cutter structure, such as the improvement optimization design etc. to tool nose sword and blade type, although decreasing the generation of the various defect of finished surface and improve machined surface quality, but the aspect such as the wear resistance of cutter and service life can not well being improved[4]
List of references:
[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.
Utility model content
The purpose of this utility model is to provide a kind of fibre reinforced composites drilling cutter based on electroplated diamond, can solve fiber reinforcement based composites Drilling operation in prior art and the technical problem of the phenomenons such as layering, tear and burr easily occurs.
In order to solve above-mentioned technical problem, this utility model provides a kind of fibre reinforced composites drilling cutter based on electroplated diamond, including cylindrical knife bar, the front end of described knife bar is provided with electroplating surface the cutter head of diamond particles, described cutter head includes multiple arc milling portions of radial equipartition and multiple chip area, arc milling portion and chip area are the part on the same face of cylinder according to circumferentially staggered layout, the outer surface in all arc milling portions;Being provided with centre drill in by the cylindrical space formed inside multiple arc milling portions, described arc milling portion and centre drill are respectively positioned on the front end of cutter head, and described chip area is isometric with cutter head;Each arc milling portion includes rear knife face and rake face;Described rear knife face overlaps with the end face in arc milling portion, place;Described rake face is coplanar with chip area side, and the normal direction of described rake face is consistent with cutter head linear velocity direction;Described rake face and the main cutting edge that infall is circular arc of described rear knife face;The prestore bits groove through with multiple chip areas it is provided with between described arc milling portion and centre drill.
This utility model fibre reinforced composites based on electroplated diamond drilling cutter, 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 120 respectively°Sector.Angle between end face and the axial direction of knife bar in described arc milling portion is-70 °~+70 °, preferably 90 °.
Compared with prior art, the beneficial effects of the utility model are:
(1) this utility model cutter head has multiple equally distributed arc milling portion and the truncated cone-shaped centre drill of arc milling portion central position, this cutter is used to carry out boring (holes drilled through) processing of fiber reinforcement based composites, centre drill therein first carries out preprocessing to the material part being cut, slow down inter-laminar stress, and prevent chip from piling up, thus reduce the generation of the defects such as the layering of composite in boring, sur-face peeling and burr, and improve composite drilling efficiency;
(2) can be with the direction of rotation of cutter respectively as rake face due to two sides in each arc milling portion, cutter head front end, the most each cutting portion all there are two main cutting edges, adds cutting-tool's used life;
(3) use 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, it is effectively increased 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 this utility model fibre reinforced composites based on electroplated diamond drilling cutter;
Fig. 2 is the left view of electroplated diamond cutter shown in Fig. 1;
Fig. 3 is the stereo profile schematic diagram of this utility model electroplated diamond cutter;
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
Being described in further detail technical solutions of the utility model with specific embodiment below in conjunction with the accompanying drawings, this utility model is only explained by described specific embodiment, not in order to limit this utility model.
As depicted in figs. 1 and 2, a kind of fibre reinforced composites drilling cutter based on electroplated diamond of this utility model, including cylindrical knife bar 2, the front end of described knife bar 2 is provided with electroplating surface the cutter head 1 of diamond particles 9, the length of cutter head 1 determines can be 15~25mm as required, as shown in Figure 4;Described cutter head 1 includes multiple arc milling portions and multiple chip area 8 of radial equipartition, arc milling portion and chip area 8 are according to circumferentially staggered layout, 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, it is provided with centre drill 7 in by the cylindrical space formed inside multiple arc milling portions, 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 utility model 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 respectively positioned on the front end of cutter head, and described chip area 8 is isometric with cutter head;Each arc milling portion includes 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 end face and the axial direction of knife bar of described cutting portion is-70 °~+70 °, and the angle of i.e. rear knife face is-20 °~+20 °;Described rake face 5 is coplanar with chip area 8 side, and the normal direction of described rake face 5 is consistent with cutter head linear velocity direction;Described rake face 5 and the main cutting edge that infall is circular arc 4 of described rear knife face 3;Being provided with the prestore bits groove 6 through with multiple chip areas 8 between described arc milling portion and centre drill 7, the bits groove 6 that i.e. prestores is for connecting all of chip area 8, and the degree of depth of the bits groove 6 that prestores can be 1.5~2.5mm.
As it is shown on figure 3, in this utility model electroplated diamond cutter embodiment 1, a length of 15mm of cutter head 1;The number of described cutting portion and chip area 8 is three, and being uniformly distributed 3 cross sections on the circumferencial direction of cutter head is fan-shaped cutting portion, and each sector is 120°Sector, 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, prestore bits groove 6 the degree of depth be 1.5mm;The radius of corner of main cutting edge 4 is 0.5mm;The inclination angle of the rear knife face 3 in this utility model is 0 °, the rear knife face 3 place plane in arc milling portion highlights 0.5mm than the plane of place foremost of truncated cone-shaped centre drill 7, the a diameter of 1.5mm in rear end of truncated cone-shaped centre drill 7, 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 the most essentially identical, the difference is that only: the rear knife face 3 place plane in arc milling portion and the place co-planar 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 the most essentially identical, the difference is that only: the plane of place foremost of truncated cone-shaped centre drill 7 highlights 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 this utility model cutter elects metal material as, as No. 45 steel can be selected, conditioned and surface hardening process after diamond particles 9 on plated surface again, the advantages such as this utility model cutter hardness is high, intensity is big, heat-resist and drilling performance is good.
Although this utility model being described above in conjunction with accompanying drawing; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematically; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the case of without departing from this utility model objective, it is also possible to make many variations, within these belong to protection of the present utility model.

Claims (5)

1. a fibre reinforced composites drilling cutter based on electroplated diamond, including cylindrical knife bar (2), it is characterised in that:
The front end of described knife bar (2) is provided with electroplating surface the cutter head (1) of diamond particles (9),
Described cutter head (1) includes multiple arc milling portions and multiple chip area (8) of radial equipartition, arc milling portion and chip area (8) are the part on the same face of cylinder according to circumferentially staggered layout, the outer surface in all arc milling portions;Being provided with centre drill (7), described arc milling portion and centre drill (7) in by the cylindrical space formed inside multiple arc milling portions and be respectively positioned on the front end of cutter head, described chip area (8) is isometric with cutter head;
Each arc milling portion includes 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 main cutting edge that infall is circular arc (4) of described rear knife face (3);
Prestore bits groove (6) through with multiple chip areas (8) it are provided with between described arc milling portion and centre drill (7).
Fibre reinforced composites drilling cutter based on electroplated diamond the most according to claim 1, 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.
Fibre reinforced composites drilling cutter based on electroplated diamond the most according to claim 1 or claim 2, 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°Sector.
Fibre reinforced composites drilling cutter based on electroplated diamond the most according to claim 1 or claim 2, it is characterised in that: the angle between end face and the axial direction of knife bar in described arc milling portion is-70 °~+70 °.
Fibre reinforced composites drilling cutter based on electroplated diamond the most according to claim 4, it is characterised in that: the end face in described arc milling portion is axially vertical with knife bar.
CN201521054532.XU 2015-12-15 2015-12-15 Fibre reinforced composite makes spot facing cutter based on electrodeposited diamond Expired - Fee Related CN205414508U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105436577A (en) * 2015-12-15 2016-03-30 中国民航大学 Fiber reinforced composite material perforation cutter based on electroplated diamond
WO2018153883A1 (en) * 2017-02-22 2018-08-30 Gühring KG Drilling tool for fiber panels
CN108942716A (en) * 2018-06-13 2018-12-07 南京航空航天大学 A kind of aperture knife tool for fibre reinforced composites
CN111250763A (en) * 2020-03-06 2020-06-09 厦门金鹭特种合金有限公司 Small-diameter complex cutter for processing composite laminated plate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105436577A (en) * 2015-12-15 2016-03-30 中国民航大学 Fiber reinforced composite material perforation cutter based on electroplated diamond
WO2018153883A1 (en) * 2017-02-22 2018-08-30 Gühring KG Drilling tool for fiber panels
CN108942716A (en) * 2018-06-13 2018-12-07 南京航空航天大学 A kind of aperture knife tool for fibre reinforced composites
CN108942716B (en) * 2018-06-13 2020-08-07 南京航空航天大学 Hole machining tool for fiber reinforced composite material
CN111250763A (en) * 2020-03-06 2020-06-09 厦门金鹭特种合金有限公司 Small-diameter complex cutter for processing composite laminated plate

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160803

Termination date: 20161215