CN107030319B - A milling-drilling compound machining tool - Google Patents

A milling-drilling compound machining tool Download PDF

Info

Publication number
CN107030319B
CN107030319B CN201710417327.2A CN201710417327A CN107030319B CN 107030319 B CN107030319 B CN 107030319B CN 201710417327 A CN201710417327 A CN 201710417327A CN 107030319 B CN107030319 B CN 107030319B
Authority
CN
China
Prior art keywords
milling
drilling
long
short
edge
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.)
Active
Application number
CN201710417327.2A
Other languages
Chinese (zh)
Other versions
CN107030319A (en
Inventor
曾滔
邓小野
李蓉
肖跃勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Original Assignee
Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhuzhou Cemented Carbide Cutting Tools Co Ltd filed Critical Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Priority to CN201710417327.2A priority Critical patent/CN107030319B/en
Publication of CN107030319A publication Critical patent/CN107030319A/en
Application granted granted Critical
Publication of CN107030319B publication Critical patent/CN107030319B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/08—Drills combined with tool parts or tools for performing additional working
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

The invention discloses a kind of millings to bore compound cutting tool, including cutter hub and knife handle, cutter hub includes the drilling portion set gradually, milling portion and guide part, guide part is connect with knife handle, drilling portion is located at the front end in milling portion, milling portion has certain taper, guide part includes at least two long spire chip spaces that knife handle is extended to from drilling portion, part of the cutter hub between two neighboring long spire chip space constitutes sword valve, sword valve is equipped with cylinder backwards to the side of cutter hub direction of rotation close to long spire chip space and is oriented to land, milling portion is crossed to form the long milling edge of taper backwards to the side of cutter hub direction of rotation with long spire chip space, sword valve is equipped at least one and extends to the short helical flute of guide part from drilling portion, milling portion is crossed to form the short milling edge of taper backwards to the side of cutter hub direction of rotation with short helical flute.The present invention can reduce axial cutting force under composite material drilling processing conditions, and the outlet for being processed hole is avoided to generate layering, splitting and veining defect.

Description

A kind of milling brill compound cutting tool
Technical field
The present invention relates to composite material machining fields more particularly to a kind of milling to bore compound cutting tool.
Background technique
Composite material has the series of advantages such as specific strength is high, specific modulus is big, antifatigue, corrosion-resistant, navigates at present in aviation The application prospect in its field is boundless, especially fibre reinforced composites (FRP), is widely used in aircraft wing and tail Rudder.Wing and tail vane need to process thousands of riveting or bolt apertures because to carry out assembly connection with airframe.Due to fibre The particularity of composite material manufacture craft is tieed up, mechanical property is in anisotropy, and interlaminar strength is lower, drilling riveting or bolt apertures During, the defects of axial cutting force effect is also easy to produce layering, tearing, the intensity and other performances of component are reduced, sternly Composite product is even resulted in when weight to scrap.
Currently, domestic and foreign scholars have carried out many theoretical research work for fibre reinforced composites drilling technique, And achieve significant achievement.Research shows that: the normal drill bit for metal material processing is in machining fiber reinforced composite material Phenomena such as being also easy to produce layers of material, aperture tearing, hole wall surface spike protein gene, is not suitable for the processing of such material.To mention High microsteping enhances the quality of composite material drilling, and cutter manufacture enterprise emphasis is improved and innovated for the structure of drill bit.
Some researchers design more apex angle fluted drills, and each apex angle is smaller and smaller from inside to outside, if notification number is CN 204295019 U and 202845870 U two China patent document of CN disclose this more apex angle fluted drills, by design compared with Second small or third apex angle reduces the unit load of cutting edge, axial cutting force is reduced, so that hole exits be avoided to generate Layering, burr and splitting phenomena.However the structure drill head apical angle the smallest second or third cutting edge only have a pair, in roughing feed Biggish feed engagement can generate biggish axial cutting force when processing, still there is the wind for generating layering, splitting and burr phenomena Danger.Notification number is that the Chinese patent literature of 2654264 Y of CN then discloses a kind of cutting edge and tapering transition with 3 or more The composite processing drill bit in area, drill bit transition region band cutting edge, can play a dual role of cutting and smoothing, to guarantee hole Processing quality.However first apex angle of invention is 60 °~80 °, and conical transition zone angle is 2 °~8 °, apex angle and transition region Taper angle is designed smaller, so that drilling position is very long, drill bit is unsuitable for the processing blind hole on thick part, and processes logical Also requiring when hole must have sufficient space to accommodate apex point at hole exits drills out.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of in composite material drilling processing Under the conditions of, it can reduce axial cutting force, avoid the outlet generation layering, splitting and the milling of veining defect that are processed hole from boring compound Process tool.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of milling brill compound cutting tool, including cutter hub and knife handle, the cutter hub include the drilling portion set gradually, milling Portion and guide part, the guide part are connect with knife handle, and the drilling portion is located at the front end in milling portion, and the milling portion has certain Taper, the guide part include at least two long spire chip spaces that knife handle is extended to from drilling portion, and the cutter hub is in adjacent two Part between a long spire chip space constitutes sword valve, and the sword valve is close to long spire chip space backwards to the side of cutter hub direction of rotation Face is equipped with cylinder and is oriented to land, and the milling portion is crossed to form with the long spire chip space backwards to the side of cutter hub direction of rotation The long milling edge of taper, the sword valve are equipped at least one and extend to the short helical flute of guide part, the milling from drilling portion It cuts portion and the short helical flute and is crossed to form the short milling edge of taper backwards to the side of cutter hub direction of rotation.
As a further improvement of the above technical scheme:
The taper angle in the milling portion is α, and 5 ° of 30 ° of < α <.
The end diameter in the milling portion is dmin, outside diameter dmax, length L, the cutter hub diameter be d, then L= 0.5(dmax-dmin)/tan α, wherein dmax=d, dmin=0.6d~0.9d.
The helical angle of the short helical flute is β1, the helical angle of the long spire chip space is β0, β1And β0Meet β1 > β0。
The short helical flute is connected with long spire chip space.
The length of the short milling edge of taper is L2, and the length of the long milling edge of taper is that L1, L1 and L2 meet L1 > L2, and L1=L.
The drilling portion includes at least two main drilling swords and at least one chisel edge, after the chisel edge is by each main drilling sword Knife face is crossed to form.
Compared with the prior art, the advantages of the present invention are as follows:
Compound cutting tool is bored in milling of the invention, certain taper is arranged in milling portion, while having short spiral to arrange in milling portion Slot and long spire chip space and the short milling edge of tapered screw and the long milling edge of tapered screw are considered to be worth doing, on the one hand since milling portion has There is certain taper, the thickness of chip can be substantially reduced, change simultaneously the distribution of drill thrust, increases the radial direction point of cutting force Amount, and reduce its axial component, to realize the target for inhibiting hole exits layering, splitting and burr；On the other hand because of the milling In portion have a plurality of taper milling edge, advantageously reduce feed engagement, reduce the cutting load of single tooth, thus can be used for greatly into To processing, stock-removing efficiency is promoted.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural schematic diagram in milling portion in the embodiment of the present invention 1.
Fig. 4 is the structural schematic diagram of the embodiment of the present invention 2.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 3.
Fig. 7 is the left view of Fig. 6.
Each label indicates in figure:
1, knife handle；2, cutter hub；21, guide part；22, milling portion；23, drilling portion；231, main drilling sword；232, chisel edge；3, Long spire chip space；4, cylinder is oriented to land；7, sword valve；8, short helical flute；81, the first short helical flute；82, second Short helical flute；9, the short milling edge of taper；91, the short milling edge of the first taper；92, the short milling edge of the second taper；10, taper is long Milling edge.
Specific embodiment
Below in conjunction with Figure of description and specific embodiment, invention is further described in detail.
Embodiment 1
As shown in Figure 1 to Figure 3, compound cutting tool (fluted drill) is bored in the milling of the present embodiment, including cutter hub 2 and knife handle 1, knife Body 2 includes drilling portion 23, milling portion 22 and the guide part 21 set gradually, and guide part 21 is connect with knife handle, and drilling portion 23 is located at The front end in milling portion 22, milling portion 22 have certain taper, and guide part 21 extends to knife handle 1 from drilling portion 23 including at least two Long spire chip space 3, part of the cutter hub 2 between two neighboring long spire chip space 3 constitute sword valve 7, and sword valve 7 is close to long spiral shell Rotation chip space 3 is equipped with the side that cylinder guiding land 4(, that is, sword valve 7 is introduced into the side of rotation backwards to the side of 2 direction of rotation of cutter hub Land 4 is oriented to along upper setting cylinder), milling portion 22 is crossed to form with long spire chip space 3 backwards to the side of 2 direction of rotation of cutter hub The long milling edge 10 of taper, sword valve 7 are equipped at least one and extend to the short helical flute 8 of guide part 21 from drilling portion 23, mill It cuts portion 22 and short helical flute 8 and is crossed to form the short milling edge 9 of taper backwards to the side of 2 direction of rotation of cutter hub, i.e., short spiral row The side and sword valve 7 for entering rotation side after bits slot 8 are crossed to form the short milling edge 9 of taper.
In the present embodiment, long spire chip space 3 is set as 2, to (four), i.e., each short helical flute 8 is set as 2 2 are set on sword valve 7, are the first short helical flute 81 close to cylinder guiding land 4, another is the second short helical flute 82.Corresponding with the first short helical flute 81 simultaneously is the short milling edge 91 of the first taper, right with the second short helical flute 82 The short milling edge 92 of the second taper answered, as shown in Figure 3.It present invention can be suitably applied to be relatively large in diameter, 7 width of sword valve also bore by biggish milling Compound cutting tool (fluted drill).
In the present embodiment, knife handle 1 and cutter hub 2 are coaxially disposed, and knife handle 1 is one section of cylindrical body, when use by collet (in figure Be not shown) be fixed in machine tool chief axis (not shown) with transmit machine power force cutter rotate and have shear action.
In the present embodiment, drilling portion 23 includes two main drilling swords 231 and a chisel edge 232, and chisel edge 232 is by two main brills The flank for cutting sword 231 is crossed to form.Long spire chip space 3 is mainly used for accommodating 232 machining of main drilling sword 231 and chisel edge The chip of middle formation, and passing away is provided for chip, cylinder guiding land 4 play the guiding role, while work in-process can squeeze Press hole inner wall to improve hole surface quality and dimensional accuracy.For the stability for guaranteeing drilling process, long spire chip space 3 and cylinder Guiding land 4 is typically designed to about 23 axis of drilling portion (2 axis C of cutter hub) symmetrically, and main drilling sword 231 and chisel edge 232 are used for Drilling forms the circular hole more slightly smaller than finished product pore size, to reduce the cutting depth of milling edge, while there is chisel edge 232 centering to make With guarantee is processed the position degree in hole.
Certain taper is arranged in milling portion 22 by the present invention, while having two pairs short helical flute 8 and a pair in milling portion 22 Long spire chip space 3 and the short milling edge 9 of four tapers and the long milling edge 10 of two tapers, on the one hand due to taper milling portion 22 have certain angle, can be substantially reduced the thickness of chip, change simultaneously the distribution of drill thrust, increase the diameter of cutting force To component, and reduce its axial component, to realize the target for inhibiting hole exits layering, splitting and burr；On the other hand because being somebody's turn to do There are six taper milling edges in taper milling portion 22, advantageously reduce feed engagement, reduce the cutting load of single tooth, therefore It can be used for roughing feed processing, promote stock-removing efficiency.
The taper angle in milling portion 22 is α, and the angle α was both unsuitable too small, and also should not be too large: one side value is too small to will cause milling It cuts that portion 22 is too long, increases some limitations of milling portion application aspect；On the other hand according to depth of cut formula Dc=fz*sin α, α value is bigger, and depth of cut is bigger, then cutting force axial component is bigger, it is difficult to realize the target for significantly reducing axial cutting force, Therefore reasonable conicity angles alpha value range is 5 °~30 °, in the present embodiment, conicity angles alpha=10 °.
In the present embodiment, the end diameter in milling portion 22 is dmin, outside diameter dmax, length L, 2 diameter of cutter hub is D, then L=0.5(dmax-dmin)/tan α, wherein dmax=d, dmin=0.6d~0.9d.The dimensional parameters pair of taper milling section 22 Performance of the invention is affected, end diameter dmin, outside diameter dmaxI.e. cutter diameter is d, which can be seen that After conicity angles alpha determines, dminBigger, then taper milling section 22 is shorter, acts on the effect of change cutting force distribution not by milling Obviously；dminSmaller, then milling portion 22 is longer, increases some limitations of milling portion application aspect, reasonable dminValue range For dmin= 0.6d~0.9d.In the present embodiment, dmax=d=10mm, dmin=0.76d, L=6.8mm.
In the present embodiment, short helical flute 8 is connected with long spire chip space 3.The helical angle of short helical flute 8 is β1, the helical angle of long spire chip space 3 is β0, β1And β0Meet β1> β0.Two pairs short helical flute 8 and long spire chip space 3 It connects, to guarantee that chip can be smoothly discharged outside hole by long spire chip space 3, avoids three pairs of milling edges in milling portion 22 The chip that (a pair of long sword, two pairs of short swords) processing generates forms congestion between sword valve 7 and hole wall.Just because of this, short spiral row The helixangleβ 1 of bits slot 8 has to be larger than the helixangleβ of long spire chip space 30, i.e. β1> β0, in the present embodiment, β1 = 33 °, β0 = 30°
In the present embodiment, the length of the short milling edge 9 of taper is L2, and the length of the long milling edge 10 of taper is full for L1, L1 and L2 Sufficient L1 > L2, and L1=L.To guarantee that the whole length in milling portion 22 is effective cutting edge, length L1=L, due to sword valve 7 Back diameter is less than 2 sword diameter d of cutter hub, therefore the short 9 length L2 of milling edge of taper is less than the length L1 of the long milling edge 10 of taper.At this In embodiment, L1=6.8mm, L2=4.6mm.
Embodiment 2
As shown in Figures 4 and 5, the present embodiment is substantially the same manner as Example 1, and difference is only that: in the present embodiment, long spire row Bits slot 3 is set as 2, and short helical flute 8 is set as 2, i.e., sets 1 on each sword valve 7.
The present embodiment is smaller suitable for cutter diameter, the lesser fluted drill of 7 width of sword valve, and drilling portion 23 includes two main brills Cut sword 231 and a chisel edge 232.In the present embodiment, each design parameter is respectively α=10 °, β1=33 °, β0=30 °, d= 10mm, dmin=0.76d, L=6.8mm, L1=6.8mm, L2=4.6mm.
Embodiment 3
As shown in Figures 6 and 7, the present embodiment is substantially the same manner as Example 1, and difference is only that: in the present embodiment, long spire row Bits slot 3 is set as 3, and short helical flute 8 is set as 3, i.e., sets 1 on each sword valve 7.
The present embodiment is suitable for three edges drill, and drilling portion 23 includes three main drilling swords 231 and three chisel edges 232, respectively Design parameter is respectively as follows: α=10 °, β1=33 °, β0=35 °, d=10mm, dmin=0.76d, L=6.8mm, L1=6.8mm, L2=4.6mm。
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment, Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.

Claims (6)

1.一种铣钻复合加工刀具，包括刀体（2）和刀柄（1），其特征在于：所述刀体（2）包括依次设置的钻削部（23）、铣削部（22）和导向部（21），所述导向部（21）与刀柄连接，所述钻削部（23）位于铣削部（22）的前端，所述铣削部（22）具有一定锥度，所述导向部（21）包括至少两个从钻削部（23）延伸至刀柄（1）的长螺旋排屑槽（3），所述刀体（2）于相邻两个长螺旋排屑槽（3）之间的部分构成刃瓣（7），所述刃瓣（7）靠近长螺旋排屑槽（3）背向刀体（2）旋转方向的侧面设有圆柱导向刃带（4），所述铣削部（22）与所述长螺旋排屑槽（3）背向刀体（2）旋转方向的侧面相交形成锥度长铣削刃（10），所述刃瓣（7）上设有至少一个从钻削部（23）延伸至导向部（21）的短螺旋排屑槽（8），所述铣削部（22）与所述短螺旋排屑槽（8）背向刀体（2）旋转方向的侧面相交形成锥度短铣削刃（9），所述短螺旋排屑槽（8）与长螺旋排屑槽（3）相连通。1. A milling-drilling compound machining tool, comprising a cutter body (2) and a tool handle (1), characterized in that: the cutter body (2) comprises a drilling portion (23) and a milling portion (22) arranged in sequence and a guide part (21), the guide part (21) is connected with the tool holder, the drilling part (23) is located at the front end of the milling part (22), the milling part (22) has a certain taper, the guide The part (21) comprises at least two long helical chip flutes (3) extending from the drilling part (23) to the tool shank (1), and the cutter body (2) is located between two adjacent long helical chip flutes ( The part between 3) constitutes a blade (7), and the blade (7) is provided with a cylindrical guide edge (4) on the side facing away from the rotation direction of the cutter body (2) close to the long helical chip removal groove (3), The milling portion (22) intersects with the side surface of the long spiral chip flute (3) facing away from the rotation direction of the cutter body (2) to form a tapered long milling edge (10), and the blade (7) is provided with at least A short helical flute (8) extending from the drilling portion (23) to the guide portion (21), the milling portion (22) and the short helical flute (8) facing away from the cutter body (2) The sides in the rotation direction intersect to form a tapered short milling edge (9), and the short helical chip flute (8) communicates with the long helical chip flute (3). 2.根据权利要求1所述的铣钻复合加工刀具，其特征在于：所述铣削部（22）的锥度角为α，且5°＜α＜ 30°。2 . The milling-drilling compound machining tool according to claim 1 , wherein the taper angle of the milling portion ( 22 ) is α, and 5°<α<30°. 3 . 3.根据权利要求2所述的铣钻复合加工刀具，其特征在于：所述铣削部（22）的小端直径为dmin，大端直径为dmax，长度为L，所述刀体（2）直径为d，则L = 0.5（dmax-dmin）/ tanα，其中dmax=d，dmin=0.6d～0.9d。3. The milling-drilling compound machining tool according to claim 2, characterized in that: the diameter of the small end of the milling portion (22) is d min , the diameter of the large end is d max , and the length is L, and the cutter body ( 2) If the diameter is d, then L = 0.5(d max -d min )/tanα, where d max =d, d min =0.6d～0.9d. 4.根据权利要求3所述的铣钻复合加工刀具，其特征在于：所述锥度短铣削刃（9）的长度为L2，所述锥度长铣削刃（10）的长度为L1，L1和L2满足L1＞L2，且L1 = L。4. The milling-drilling compound machining tool according to claim 3, characterized in that: the length of the short taper milling edge (9) is L2, and the length of the long taper milling edge (10) is L1, L1 and L2 L1>L2 is satisfied, and L1 = L. 5.根据权利要求1至4任意一项所述的铣钻复合加工刀具，其特征在于：所述短螺旋排屑槽（8）的螺旋角为β1，所述长螺旋排屑槽（3）的螺旋角为β0，β1和β0满足β1＞β0。The milling-drilling compound machining tool according to any one of claims 1 to 4, characterized in that: the helix angle of the short helical chip flute (8) is β 1 , and the long helical chip flute (3) ) has a helix angle of β 0 , and β 1 and β 0 satisfy β 1 >β 0 . 6.根据权利要求1至4任意一项所述的铣钻复合加工刀具，其特征在于：所述钻削部（23）包括至少两条主钻削刃（231）和至少一条横刃（232），所述横刃（232）由各主钻削刃（231）的后刀面相交形成。6. The milling-drilling composite machining tool according to any one of claims 1 to 4, wherein the drilling portion (23) comprises at least two main drilling edges (231) and at least one chisel edge (232) ), the chisel edge (232) is formed by the intersection of the flank surfaces of the main drilling edges (231).
CN201710417327.2A 2017-06-06 2017-06-06 A milling-drilling compound machining tool Active CN107030319B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710417327.2A CN107030319B (en) 2017-06-06 2017-06-06 A milling-drilling compound machining tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710417327.2A CN107030319B (en) 2017-06-06 2017-06-06 A milling-drilling compound machining tool

Publications (2)

Publication Number Publication Date
CN107030319A CN107030319A (en) 2017-08-11
CN107030319B true CN107030319B (en) 2019-01-25

Family

ID=59540970

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710417327.2A Active CN107030319B (en) 2017-06-06 2017-06-06 A milling-drilling compound machining tool

Country Status (1)

Country Link
CN (1) CN107030319B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10486246B2 (en) * 2018-02-26 2019-11-26 Iscar, Ltd. End mill having a peripheral cutting edge with a variable angle configuration
DE102019202165B4 (en) * 2019-02-19 2022-10-27 Kennametal Inc. Drill and method of machining a workpiece
CN112453532B (en) * 2020-11-17 2022-05-31 哈尔滨工业大学 Special composite cutter for carbon fiber composite spiral hole milling and machining method thereof
CN112719385B (en) * 2020-12-25 2022-06-14 株洲钻石切削刀具股份有限公司 a milling tool
CN118751970B (en) * 2024-09-05 2024-12-27 哈尔滨理工大学 Drilling and milling integrated tool for inhibiting burrs and design method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262013A1 (en) * 1972-12-19 1974-08-01 Andreas Maier Twist drill for forming conical bores - in plastics or printed circuits without making grooves when withdrawn
US5094573A (en) * 1988-07-21 1992-03-10 Hougen Everett D Multidirectional cutting tool
IL211443A0 (en) * 2011-02-27 2011-06-30 Kennametal Inc Combined drill and reamer tool
CN203621579U (en) * 2013-12-26 2014-06-04 大连远东工具有限公司 Efficient drilling and reaming compound tool with guide function
CN203944890U (en) * 2014-07-22 2014-11-19 锑玛(苏州)精密工具有限公司 A kind of for processing the brill milling composite cutter of through hole key grooves
CN104191009B (en) * 2014-07-30 2017-07-11 常州创伟工具制造有限公司 Two sword taper ball head milling cutters

Also Published As

Publication number Publication date
CN107030319A (en) 2017-08-11

Similar Documents

Publication Publication Date Title
CN107030319B (en) A milling-drilling compound machining tool
JP5945283B2 (en) drill
CN104999118B (en) High-efficiency special drilling head for drilling holes in carbon fiber composite material
CN107363312A (en) Band edge sword slotting cutter for carbon fibre composite high-speed milling
CN105598509A (en) Drill bit special for high-quality drilling of carbon fiber reinforced composite
WO2012027057A2 (en) Combination end milling/drilling/reaming cutting tool
CN106624080B (en) A kind of micro- tooth Double-margin brill ream one drill bit of ladder
CN206083948U (en) Bipyramid angle chip breaking drill bit
CN210254406U (en) Linear type three-point-fine tooth-shaped drilling and milling composite cutter
CN102941373B (en) Special cutter for spiral milling dimples of composite material
CN209736719U (en) A kind of drilling and milling compound tool with dovetail serrations for carbon fiber composite materials
CN108637337A (en) A Forward-Reverse Helical Milling Tool
CN210254408U (en) A crisscross sword bores and mills combination cutting tool for processing carbon fiber reinforced composite
CN113649632A (en) Carbon fiber composite material ultrasonic bidirectional spiral milling cutter and grinding method thereof
CN106825699A (en) One kind becomes helicla flute double tapered angle laminated construction drilling integrated tool
CN202169397U (en) Drilling and milling combined tool with combined cutting edges
CN110744108B (en) Method for machining drill bit with edge-inclined groove structure for machining composite material
CN107717020A (en) Carbon fibre reinforced composite target drill with straight sword type blade
CN209849951U (en) A scalelike compound cutting tool that bores and mills of forked tail fish for carbon fiber reinforced composite
CN108637606B (en) Shaft processing technology with deep lumen pore
CN103894662B (en) A kind of laminated material helical milling dedicated tool
CN204565138U (en) Bolt-type reverses handle
CN206286612U (en) A kind of chip discharging structure of drill bit
CN107717021A (en) Carbon fibre reinforced composite target drill with Circular Nose Cutting Edge blade
CN207415527U (en) For the drill bit with Circular Nose Cutting Edge blade of carbon fibre reinforced composite

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant