CN104028812A - Drill bit special for carbon fiber composite materials - Google Patents
Drill bit special for carbon fiber composite materials Download PDFInfo
- Publication number
- CN104028812A CN104028812A CN201410264146.7A CN201410264146A CN104028812A CN 104028812 A CN104028812 A CN 104028812A CN 201410264146 A CN201410264146 A CN 201410264146A CN 104028812 A CN104028812 A CN 104028812A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- knife face
- knife
- face
- cutting
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
Abstract
The invention provides a drill bit capable of reducing hole drilling defects and giving play to excellent abrasion performance and long in service life during cutting machining of carbon fiber composite materials. The drill bit comprises a tool bar and a drill bit body. The tool bar is provided with two spiral grooves, and edges of the grooves are of chamfered structures; the drill bit body is arranged at the tail ends of the grooves; the drill bit body is provided with two stages of main rear tool surfaces; the first stage of the main rear tool surfaces forms a primary front angle, the cross edge of the first main tool surfaces is longer and adopts reinforcing thickened-core structure; the second stage of main rear tool surfaces forms a secondary front angle which is circular-arc shaped and the two-stage main rear tool surfaces form a longer main cutting edge; chipping dividing grooves are arranged in tail ends of the two-stage main rear tool surfaces. The edge of the drill bit body is provided with two outer-edge cutting edges. The drill bit can be used in the cutting machining, is capable of reducing hole drilling defects, good in abrasion performance and long in service life.
Description
Technical field
Patent of the present invention relates to the design of target drill structure, belongs to carbon fibre composite manufacture field.
Background technology
For the current main employing of processing of carbon fibre composite is drilling processing, but drilling adds man-hour, the different performance showing when the intensity of interbedded binding agent is different with the intensity of fiber own and fiber is different from cutting edge profile, easily produces burr, tears, the defect such as layering while causing holing.
At present, mostly drilling for carbon fibre composite is to adopt fluted drill, and the cutting parameter with reference to drilling metal material is selected the cutting parameter of carbon fibre composite or cutting parameter is carried out to improvement to a certain degree, but because the easy layering of carbon fibre composite, sur-face peeling, grain raising and resin fibre collapse scarce problem, make the wear extent of cutter large, cutter life is shorter.
Therefore, need to carry out specialized designs to carbon fibre composite process tool.
Summary of the invention
The object of the invention provides a kind of carbon fibre composite target drill, by the design to drill bit, can overcome the tool wear occurring in process serious, the problem that hole crudy is not high.
The carbon fibre composite target drill that the present invention proposes, its main body is knife bar 1, described knife bar 1 is column construction, two spiral grooves 2 on knife bar 1, have been evenly arranged, knife bar 1 and two the common formation twisted shape of groove 2 structures, the afterbody of described knife bar 1 is drill main body 4, wherein:
Described drill main body 4 comprises after the first order master knife face 9 after knife face 5 and second level master, after described first order master, knife face 5 has four, be positioned at the centre of drill main body 4 ends, after first order master, knife face 5 intersects formation umbrella-shaped structure between two, after two first order masters on the left side, knife face 5 and the intersection between two cutter planes on the right form chisel edge 7, and after operating face 5 and two first order masters on the right, two first order on the left side are 112 ° of angles between knife face, described angle forms the first heavy sharp angle 8, after described second level master, knife face 9 has two, wherein a slice is positioned at two first order operator face 5 peripheries on the left side, another sheet is positioned at two first order operator face 5 peripheries on the right, and after the master of the second level, knife face 9 forms the second heavy sharp angle 10 with the junction of first order operator face 5, after described second level master, knife face 9 ends are chip dividing groove 12, the angle of described the first heavy sharp angle 8 is larger, and the second heavy sharp angle 10 angles are less, described the first larger heavy sharp angle 8 destroys the inside texture of carbon fibre composite in axial brittle failure, described the second less heavy sharp angle 10 can strengthen drilling ability, reduces cutting force, effectively shears material interlayer structure, alleviates lamination problem, described drill main body outer rim is that the region beyond knife bar 1 groove is provided with the first cutting edge 13 and the second cutting edge 14, the first cutting edges 13 are positioned at chip dividing groove 12 belows, and the first cutting edge 13 and the second cutting edge 14 angles are 120 °, described the first cutting edge 13 and the second cutting edge 14 can carry out outer rim cutting, and what can prevent from occurring in working angles breaks and the phenomenon such as wearing and tearing.
In the present invention, described groove 2 both sides are chamfering shape drill body structure, can strengthen edge strength, avoid collapsing damage.
In the present invention, after described second level master, knife face 9 adopts arc structure, is conducive to the shunting of cutting.
In the present invention, after described second level master, the chip dividing groove 1 of the tail end of knife face 9 is a pot shape structure, is conducive to the inflow of chip removal and cutting fluid.
In the present invention, described chisel edge 7 adopts the core thick structure of strengthening.The core of described reinforcement is thick can prevent drill bit because reverse and vibration flexural deformation, and extends to a certain extent the service life of cutter.
In the present invention, described drill bit material is polycrystalline diamond (PCD).
Beneficial effect of the present invention is: this drill bit can be applied to, in machining, can reduce drilling defect, has good wearability, and has longer life.
Accompanying drawing explanation
Fig. 1 is the front view of carbon fibre composite target drill provided by the present invention.
Fig. 2 is the top view of carbon fibre composite target drill provided by the present invention.
Fig. 3 is the revolved view of carbon fibre composite target drill provided by the present invention.
Number in the figure: 1 is knife bar, 2 is groove, 3 is chamfering type drill body structure, 4 is drill main body, and 5 is knife face after first order master, and 6 is both sides, the left side and both sides, the right angle of knife face after first order master, 7 is chisel edge, 8 is the first heavy sharp angle, and 9 is knife face after the master of the second level, and 10 is the second heavy sharp angle, 11 is strengthening core, 12 is chip dividing groove, and 13 is the first cutting edge, and 14 is the second cutting edge.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail:
Embodiment 1:
Carbon fibre composite target drill as Figure 1-3, by knife bar 1 and drill main body 4, formed, the cylindrical structure of knife bar 1, on knife bar 1, evenly have two spiral grooves 2, two limits of every groove 2 are designed to chamfering type drill body structure 3, knife bar 1 and the common overall structure that forms twisted shape of groove 2.
Drill main body 4 comprises after the first order master knife face 9 after knife face 5 and second level master, after first order master, knife face 5 has four, be positioned at the centre of drill main body 4 ends, after first order master, knife face 5 intersects formation umbrella-shaped structure between two, after two first order masters on the left side, knife face 5 and the intersection between two cutter planes on the right form chisel edge 7, and after operating face 5 and two first order masters on the right, two first order on the left side are 112 ° of angles between knife face, angle forms the first heavy sharp angle 8, after the master of the second level, knife face 9 has two, wherein a slice is positioned at two first order operator face 5 peripheries on the left side, another sheet is positioned at two first order operator face 5 peripheries on the right, and after the master of the second level, knife face 9 forms the second heavy sharp angle 10 with the junction of first order operator face 5, after the second level master of institute, knife face 9 ends are chip dividing groove 12, the angle of the first heavy sharp angle 8 is larger, and the second heavy sharp angle 10 angles are less, the first larger heavy sharp angle 8 destroys the inside texture of carbon fibre composite in axial brittle failure, the second less heavy sharp angle 10 can strengthen drilling ability, reduces cutting force, effectively shears material interlayer structure, alleviates lamination problem, drill main body outer rim is that the region beyond knife bar 1 groove is provided with the first cutting edge 13 and the second cutting edge 14, the first cutting edges 13 are positioned at chip dividing groove 12 belows, and the first cutting edge 13 and the second cutting edge 14 angles are 120 °, the first cutting edge 13 and the second cutting edge 14 can carry out outer rim cutting, and what can prevent from occurring in working angles breaks and the phenomenon such as wearing and tearing.
In the present invention, groove 2 both sides are chamfering shape drill body structure, can strengthen edge strength, avoid collapsing damage.After the master of the second level, knife face 9 adopts arc structure, is conducive to the shunting of cutting.After the master of the second level, the chip dividing groove 1 of the tail end of knife face 9 is a pot shape structure, is conducive to the inflow of chip removal and cutting fluid.Chisel edge 7 adopts the core thick structure of strengthening.The core of described reinforcement is thick can prevent drill bit because reverse and vibration flexural deformation, and extends to a certain extent the service life of cutter.
Carbon fibre composite target drill of the present invention, is designed with respectively outer rim the first cutting edge 13,14, two cutting edge plane included angles of the second cutting edge are 120 °, can carry out outer rim cutting at the edge of its drill main body.
This drill bit can be applied to, in machining, can reduce drilling defect, has good wearability, and has longer life.
Claims (5)
1. carbon fibre composite target drill, its main body is knife bar (1), described knife bar (1) is column construction, two spiral grooves (2) on knife bar (1), have been evenly arranged, knife bar (1) forms twisted shape structure jointly with two grooves (2), the afterbody of described knife bar (1) is drill main body (4), it is characterized in that:
Described drill main body (4) comprises after the first order master knife face (9) after knife face (5) and second level master, knife face after described first order master (5) has four, be positioned at the centre of drill main body (4) end, knife face after first order master (5) intersects formation umbrella-shaped structure between two, be positioned at knife face (5) and the intersection between two cutter planes on the right after two first order masters on the left side and form chisel edge (7), and be positioned at two first order operator faces (5) on the left side and between knife face, be 112 ° of angles after two first order masters on the right, described angle forms the first heavy sharp angle (8), after described second level master, knife face (9) has two, wherein a slice is positioned at two first order operator face (5) peripheries on the left side, another sheet is positioned at two first order operator face (5) peripheries on the right, and knife face after the master of the second level (9) forms the second heavy sharp angle (10) with the junction of first order operator face (5), after described second level master, knife face (9) end is chip dividing groove (12), the angle of the described first heavy sharp angle (8) is larger, and the second heavy sharp angle (10) angle is less, described the first larger heavy sharp angle (8) destroys the inside texture of carbon fibre composite in axial brittle failure, described the second less heavy sharp angle (10) can strengthen drilling ability, reduces cutting force, effectively shears material interlayer structure, alleviates lamination problem, described drill main body outer rim is that the region beyond knife bar 1 groove is provided with the first cutting edge (13) and the second cutting edge (14), the first cutting edge (13) is positioned at chip dividing groove (12) below, and the first cutting edge (13) and the second cutting edge (14) angle are 120 °, described the first cutting edge (13) and the second cutting edge (14) can carry out outer rim cutting, and what can prevent from occurring in working angles breaks and the phenomenon such as wearing and tearing.
2. target drill according to claim 1, is characterized in that described groove (2) both sides are chamfering shape drill body structure, can strengthen edge strength, avoids collapsing damage.
3. target drill according to claim 1, it is characterized in that described second level master after knife face (9) adopt arc structure, be conducive to the shunting of cutting.
4. target drill according to claim 1, is characterized in that the chip dividing groove (1) of the tail end of knife face (9) after described second level master is a pot shape structure, is conducive to the inflow of chip removal and cutting fluid.
5. target drill according to claim 1, is characterized in that described chisel edge (7) adopts the core thick structure of strengthening, and the core of described reinforcement is thick can prevent drill bit because reverse and vibration flexural deformation, and extends to a certain extent the service life of cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264146.7A CN104028812A (en) | 2014-06-16 | 2014-06-16 | Drill bit special for carbon fiber composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410264146.7A CN104028812A (en) | 2014-06-16 | 2014-06-16 | Drill bit special for carbon fiber composite materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104028812A true CN104028812A (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410264146.7A Withdrawn CN104028812A (en) | 2014-06-16 | 2014-06-16 | Drill bit special for carbon fiber composite materials |
Country Status (1)
| Country | Link |
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| CN (1) | CN104028812A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400077A (en) * | 2014-11-27 | 2015-03-11 | 苏州阿诺精密切削技术股份有限公司 | J-shaped edge correction straight flute drill |
| CN104439432A (en) * | 2014-11-27 | 2015-03-25 | 苏州阿诺精密切削技术股份有限公司 | J-shaped seamed edge correction auger bit |
| CN107775719A (en) * | 2016-08-25 | 2018-03-09 | 深圳光启尖端技术有限责任公司 | Drill bit and aperture knife tool and method for aramid fiber reinforced composite |
| WO2023071697A1 (en) * | 2021-10-28 | 2023-05-04 | 蓝鲸科技(深圳)有限公司 | Hand drill bit for processing laminated member of carbon fiber reinforced resin-based composite material and aluminum alloy |
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| CN101282806A (en) * | 2005-08-02 | 2008-10-08 | 天窗工具有限公司 | Twist drill |
| CN101352766A (en) * | 2007-07-26 | 2009-01-28 | 斯奈克玛 | Ceramic drill for high-speed perforation of composite materials |
| CN101484263A (en) * | 2006-07-24 | 2009-07-15 | 钴碳化钨硬质合金公司 | Drill for machining fiber reinforced composite material |
| US7575401B1 (en) * | 2004-11-18 | 2009-08-18 | Precorp, Inc. | PCD drill for composite materials |
| CN101524768A (en) * | 2009-04-10 | 2009-09-09 | 周安善 | New minor-edge multipoint aerial drill |
| WO2010086988A1 (en) * | 2009-01-29 | 2010-08-05 | オーエスジー株式会社 | Double angle drill |
| JP2010284783A (en) * | 2009-06-15 | 2010-12-24 | Osg Corp | Triple angle type drill |
| US20110268518A1 (en) * | 2010-04-30 | 2011-11-03 | Karthik Sampath | Rotary cutting tool having pcd cutting tip |
| EP2527066A2 (en) * | 2011-05-23 | 2012-11-28 | Sharon-Cutwell Co., Inc. | Drilling tool |
| CN203401118U (en) * | 2013-07-30 | 2014-01-22 | 上海名古屋精密工具股份有限公司 | Drill bit used for performing hole machining on fiber composite material |
| CN103648694A (en) * | 2011-07-06 | 2014-03-19 | 山特维克知识产权股份有限公司 | Twist drill and method of drilling composite materials, use and method regrinding and manufacturing thereof |
-
2014
- 2014-06-16 CN CN201410264146.7A patent/CN104028812A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7575401B1 (en) * | 2004-11-18 | 2009-08-18 | Precorp, Inc. | PCD drill for composite materials |
| CN101282806A (en) * | 2005-08-02 | 2008-10-08 | 天窗工具有限公司 | Twist drill |
| CN101484263A (en) * | 2006-07-24 | 2009-07-15 | 钴碳化钨硬质合金公司 | Drill for machining fiber reinforced composite material |
| CN101352766A (en) * | 2007-07-26 | 2009-01-28 | 斯奈克玛 | Ceramic drill for high-speed perforation of composite materials |
| WO2010086988A1 (en) * | 2009-01-29 | 2010-08-05 | オーエスジー株式会社 | Double angle drill |
| CN101524768A (en) * | 2009-04-10 | 2009-09-09 | 周安善 | New minor-edge multipoint aerial drill |
| JP2010284783A (en) * | 2009-06-15 | 2010-12-24 | Osg Corp | Triple angle type drill |
| US20110268518A1 (en) * | 2010-04-30 | 2011-11-03 | Karthik Sampath | Rotary cutting tool having pcd cutting tip |
| EP2527066A2 (en) * | 2011-05-23 | 2012-11-28 | Sharon-Cutwell Co., Inc. | Drilling tool |
| CN103648694A (en) * | 2011-07-06 | 2014-03-19 | 山特维克知识产权股份有限公司 | Twist drill and method of drilling composite materials, use and method regrinding and manufacturing thereof |
| CN203401118U (en) * | 2013-07-30 | 2014-01-22 | 上海名古屋精密工具股份有限公司 | Drill bit used for performing hole machining on fiber composite material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400077A (en) * | 2014-11-27 | 2015-03-11 | 苏州阿诺精密切削技术股份有限公司 | J-shaped edge correction straight flute drill |
| CN104439432A (en) * | 2014-11-27 | 2015-03-25 | 苏州阿诺精密切削技术股份有限公司 | J-shaped seamed edge correction auger bit |
| CN107775719A (en) * | 2016-08-25 | 2018-03-09 | 深圳光启尖端技术有限责任公司 | Drill bit and aperture knife tool and method for aramid fiber reinforced composite |
| WO2023071697A1 (en) * | 2021-10-28 | 2023-05-04 | 蓝鲸科技(深圳)有限公司 | Hand drill bit for processing laminated member of carbon fiber reinforced resin-based composite material and aluminum alloy |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140910 |