CN105458353B - A kind of electroplated diamond cutter for fibre reinforced composites drilling - Google Patents
A kind of electroplated diamond cutter for fibre reinforced composites drilling Download PDFInfo
- Publication number
- CN105458353B CN105458353B CN201510934587.8A CN201510934587A CN105458353B CN 105458353 B CN105458353 B CN 105458353B CN 201510934587 A CN201510934587 A CN 201510934587A CN 105458353 B CN105458353 B CN 105458353B
- Authority
- CN
- China
- Prior art keywords
- cutter head
- cutting
- cutting portion
- rake face
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- B23B2228/00—Properties of materials of tools or workpieces, materials of tools or workpieces applied in a specific manner
- B23B2228/10—Coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/20—Number of cutting edges
- B23B2251/202—Three 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a kind of electroplated diamond cutters for fibre reinforced composites drilling, knife bar including cylindrical body, the front end of knife bar is equipped with the cutter head that electroplating surface has diamond particles, cutter head includes the multiple cutting portions and multiple chip spaces of radial equipartition, according to circumferentially staggered arrangement, the outer surface of all cutting portions is a part on same cylindrical surface for cutting portion and chip space；For cutting parts in the front end of cutter head, chip space is isometric with cutter head；Each cutting portion includes flank and rake face；Flank is overlapped with the end face of place cutting portion；Rake face is coplanar with a side of chip space, and the normal direction of rake face is consistent with cutter head linear velocity direction；Rake face and the infall of flank are arc-shaped main cutting edge；The central position of cutter head end, which is equipped with, prestores bits slot with what multiple chip spaces penetrated through.Cutter of the present invention can eliminate phenomena such as layering, tearing and burr for being easy to appear in the prior art for fibre reinforced composites drilling processing.
Description
Technical field
The present invention relates to a kind of drilling tools, and in particular to the electroplated diamond to drill for fibre reinforced composites
Cutter.
Background technique
Composite material refers to the material being composed of in different ways two or more different material, it has matter
Many advantages, such as amount is light, specific strength is high, specific stiffness is big, vibration damping and anti-fatigue performance are good, corrosion-resistant, is widely used in aviation boat
It, communications and transportation, the fields such as biologic medical and sports goods.With the rapid development of composite material and increasingly extensive application,
The molding of composite product also becomes more and more important with processing.Drilling is most important processing in composite material manufacturing process
One of process, since composite material has the characteristics that big hardness height, intensity, poor thermal conductivity, anisotropy, interlaminar strength are low,
The problems such as tearing, burr and layering are easy to appear in boring procedure, causes workpiece surface quality to decline, and due to anisotropic
In the presence of friction generates heat with workpiece surface for cutter, and cutting force is very big, and tool wear is serious[1~3]。
Many research has been done to fibre reinforced composites drilling tool both at home and abroad, has been mainly concerned with optimization cutter structure
It designs, using popular domains such as advanced cutter material, newly-increased surface-coating technologies.Wherein fibre reinforced composites drilling tool
Material based on the combination of hard alloy, polycrystalline diamond and the two.Hard alloy cutter can be formed each by sharpening
Kind geometry, so that layering and quick cut staple are prevented, but the wear resistance of hard alloy cutter is insufficient, cutting edge mill
Damage passivation will cause drilling quality to decline.Polycrystal diamond cutter, by with hard alloy it is integral sintered after, then sharpened,
Can get high rigidity and high-intensitive cutting edge, thus cut staple well, but polycrystal diamond cutter shock resistance compared with
Difference is easy to produce tipping.Coating diamond coatings in carbide tool surface can be very good intensity, the hardness of raising cutter
And wearability, while low coefficient of friction is obtained, and then improve machined surface quality and reduce the generation of various defects.It is other
Research in terms of changing cutter structure, such as to the improvement optimization design of tool nose sword and blade type, add although reducing
The generation of the various defects in work surface simultaneously improves machined surface quality, but the wear resistance of cutter and service life etc.
It cannot be improved well[4]。
Bibliography:
[1] Zhang Houjiang, Chen Wuyi, Chen Dingchang；[J] New Technologies are processed in the drilling of fiber reinforcement based composites,
1998。
[2] Wei Wei, Wei Hongjin；Fiber reinforcement based composites high quality drill process [J] Nanjing Aero-Space University is learned
Report, 2009.
[3] Cui Xiliang, Tian Biao, Wang Yongguo；Defect analysis [J] Electrical Mechanician of fiber reinforcement based composites drilling processing
Journey, 2013.
[4] bright big, Wang Changying, Chen Ming；Fibre reinforced composites drilling cutting-tool engineering progress [J] aviation system
Make technology, 2013.
Summary of the invention
The purpose of the present invention is to provide a kind of electroplated diamond cutters for fibre reinforced composites drilling, can be with
The technology for solving phenomena such as fibre reinforced composites drilling processing is easy to appear layering, tearing and burr in the prior art is asked
Topic.
In order to solve the above-mentioned technical problems, the present invention provides a kind of electroplating golds for fibre reinforced composites drilling
Hard rock cutter, the knife bar including cylindrical body, the front end of the knife bar are equipped with the cutter head that electroplating surface has diamond particles, the knife
The multiple cutting portions and multiple chip spaces, cutting portion and chip space that head includes radial equipartition are all to cut according to circumferentially staggered arrangement
The outer surface for cutting portion is a part on same cylindrical surface；For cutting parts in the front end of cutter head, the chip space and cutter head are isometric；
Each cutting portion includes flank and rake face；The flank is overlapped with the end face of place cutting portion；The rake face and row
A side for considering slot to be worth doing is coplanar, and the normal direction of the rake face is consistent with cutter head linear velocity direction；The rake face with
The infall of the flank is arc-shaped main cutting edge；The central position of cutter head end is equipped with to be penetrated through with multiple chip spaces
Prestore bits slot.
Wherein, the number of the cutting portion and chip space 7 is three, and the cross-sectional shape of each cutting portion is respectively
120DFan-shaped surface.Angle between the end face of the cutting portion and the axial direction of knife bar is -70 °~+70 °, preferably 90 °.
Compared with prior art, the beneficial effects of the present invention are:
(1) cutter head of the present invention has multiple equally distributed fan-shaped cutting portions, carries out fiber-reinforced composite using the cutter
The drilling (holes drilled through) of material is processed, and drilling efficiency can be improved；
(2) due to two sides of each cutting portion in cutter head front end can with the direction of rotation of cutter respectively as rake face,
I.e. each cutting portion exists there are two main cutting edge, increases cutting-tool's used life；
(3) multiple chip spaces are connected using bits slot is prestored, reduces cutting force, increase chip removal and heat-sinking capability, further
Extend cutting-tool's used life；
(4) for entire tool bit part, surface plates diamond particles, is effectively increased the intensity of cutter, hardness, resistance to
Mill property, while reducing to rub and examining coefficient, so as to improve machined surface quality, the generation of manufacturing deficiency is reduced, while improving cutter
Service life.
Detailed description of the invention
Fig. 1 is main view of the present invention for the electroplated diamond cutter of fibre reinforced composites drilling；
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- guide rod, 3- flank, 4- main cutting edge, 5- rake face, 6- prestore bits slot, 7- chip space,
8- diamond particles.
Specific embodiment
Technical solution of the present invention is described in further detail in the following with reference to the drawings and specific embodiments, it is described specific
Embodiment is only explained the present invention, is not intended to limit the invention.
As depicted in figs. 1 and 2, a kind of electroplated diamond cutter for fibre reinforced composites drilling of the present invention, packet
The knife bar 2 of cylindrical body is included, the front end of the knife bar 2 is equipped with the cutter head 1 that electroplating surface there are diamond particles 8, and the length of cutter head 1 can
For 15~25mm, the cutter head 1 include the multiple cutting portions and multiple chip spaces 7 of radial equipartition, cutting portion and chip space 7 according to
Circumferentially staggered arrangement, the outer surface of all cutting portions are a part on same cylindrical surface, the cross-sectional shape of each cutting portion
It is fan-shaped surface, the quantity of fan-shaped cutting portion is preferably 3 or 4；Cutting parts in the front end of cutter head, the chip space 7 with
Cutter head is isometric, and the width of chip space can be 1.5~2.5mm, and the depth of chip space 7 can be 1.5~2.5mm；Each cutting portion packet
Include flank 3 and rake face 5；The flank 3 is overlapped with the end face of place cutting portion, the end face of the cutting portion and knife bar
Angle between axial direction is -70 °~+70 °, and preferably 90 °, i.e. the inclination angle of flank 3 can be -20D~20D。
The rake face 5 is coplanar with a side of chip space 7, the normal direction and cutter head rotational line of the rake face 5
Directional velocity is consistent, namely two sides of the cutting portion positioned at cutter head front end are in forward and backward respectively as rake face, institute
The infall for stating rake face 5 and the flank 3 is arc-shaped main cutting edge 4；The central position of cutter head end be equipped with
What multiple chip spaces 7 penetrated through prestores bits slot 6, that is, prestores bits slot 6 for connecting all chip spaces 7, the depth for prestoring bits slot 6 can
For 1.5~2.5mm
As shown in figure 3, the major parameter of electroplated diamond cutter of the present invention is as follows:
The length 15mm of cutter head 1；The number of the cutting portion and chip space 7 is three, on the circumferencial direction of cutter head
Being uniformly distributed 3 cross sections is fan-shaped cutting portion, and each sector is 120DFan-shaped surface；The width of chip space is 2mm, row
The depth for considering slot 7 to be worth doing is 1.5mm；The depth for prestoring bits slot 6 can be 1.5mm；The radius of corner of main cutting edge 4 is 0.5mm；Flank
3 inclination angle is 0D。
The basic material of cutter of the present invention is selected as metal material, can such as select No. 45 steel, at conditioned and surface hardening
Diamond particles 8 are plated on surface again after reason, cutter hardness of the present invention is high, intensity is big, heat-resist and drilling performance is good etc.
Advantage.
Although above in conjunction with attached drawing, invention has been described, and the invention is not limited to above-mentioned specific implementations
Mode, the above mentioned embodiment is only schematical, rather than restrictive, and those skilled in the art are at this
Under the enlightenment of invention, without deviating from the spirit of the invention, many variations can also be made, these belong to of the invention
Within protection.
Claims (1)
1. a kind of electroplated diamond cutter for fibre reinforced composites drilling, the knife bar (2) including cylindrical body, feature
It is:
The front end of the knife bar (2) is equipped with the cutter head (1) that electroplating surface has diamond particles (8),
The cutter head (1) include radial equipartition three cutting portions and three chip spaces (7), cutting portion and chip space (7) according to
Circumferentially staggered arrangement, the outer surface of all cutting portions are a part on same cylindrical surface；Cutting parts are in the front end of cutter head, institute
It states chip space (7) and cutter head is isometric；
Each cutting portion includes flank (3) and rake face (5)；The cross-sectional shape of each cutting portion is respectively 120 ° of fan
Shape face；The end face of the cutting portion and knife bar it is axially vertical；
The flank (3) is overlapped with the end face of place cutting portion；
The rake face (5) is coplanar with a side of chip space (7), and the normal direction and cutter head of the rake face (5) rotate
Linear velocity direction is consistent；
The infall of the rake face (5) and the flank (3) is arc-shaped main cutting edge (4)；
The central position of cutter head end, which is equipped with, considers slot (6) to be worth doing with three prestoring for chip space (7) perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934587.8A CN105458353B (en) | 2015-12-15 | 2015-12-15 | A kind of electroplated diamond cutter for fibre reinforced composites drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934587.8A CN105458353B (en) | 2015-12-15 | 2015-12-15 | A kind of electroplated diamond cutter for fibre reinforced composites drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458353A CN105458353A (en) | 2016-04-06 |
| CN105458353B true CN105458353B (en) | 2018-12-11 |
Family
ID=55596755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510934587.8A Expired - Fee Related CN105458353B (en) | 2015-12-15 | 2015-12-15 | A kind of electroplated diamond cutter for fibre reinforced composites drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105458353B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141813A (en) * | 1994-11-22 | 1996-06-04 | Mitsubishi Materials Corp | Drill |
| WO1997031742A2 (en) * | 1996-02-29 | 1997-09-04 | Komet Präzisionswerkzeuge Robert Breuning Gmbh | Drilling tool for machine tools and method of producing the same |
| JP2009039811A (en) * | 2007-08-08 | 2009-02-26 | Kumamoto Univ | Tool and method for drilling hole in fiber-reinforced composite material |
| CN102764910A (en) * | 2011-05-03 | 2012-11-07 | 富泰华工业（深圳）有限公司 | Formed cutter |
| CN203197323U (en) * | 2013-02-06 | 2013-09-18 | 哈尔滨理工大学 | Brazed-structure diamond drill bit for carbon fiber reinforced composite material |
| CN203664783U (en) * | 2013-11-18 | 2014-06-25 | 河南富耐克超硬材料股份有限公司 | End mill |
| CN205254195U (en) * | 2015-12-15 | 2016-05-25 | 中国民航大学 | A electrodeposited diamond cutter for drilling of fibre reinforced composite |
-
2015
- 2015-12-15 CN CN201510934587.8A patent/CN105458353B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105458353A (en) | 2016-04-06 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20191215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |