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Micro-tooth design method capable of realizing alternative cutting of left and right cutting edges

A technology of right-handed cutting and design method, which is applied in the direction of milling machine equipment, milling machine equipment details, metal processing equipment, etc., can solve the problems such as failure to realize left-handed alternating cutting, achieve efficient processing, and improve tool life.

Active Publication Date: 2019-04-19
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art research, the effective cutting part of this kind of multi-tooth milling cutter failed to realize the machining method of alternating left and right rotation in any section.

Method used

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  • Micro-tooth design method capable of realizing alternative cutting of left and right cutting edges
  • Micro-tooth design method capable of realizing alternative cutting of left and right cutting edges
  • Micro-tooth design method capable of realizing alternative cutting of left and right cutting edges

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: Milling cutter diameter D=10mm, helix angle θ=15° of right-handed spiral flute 1, helix angle β=35° of left-handed chip divider flute 2, number of right-handed spiral flutes Z 1 =12, the blade width of the right-handed cutting edge 4 is g 1 , groove width g of left-handed chip splitter 2 2 , the number of left-handed chip splitters Z 2 ; The specific design method steps are as follows:

[0041] Step 1: Ensure that there is no "empty cutting phenomenon" in the continuous cutting process, that is, the distance between two adjacent micro teeth on the same cutting edge is 0, which needs to be satisfied;

[0042] g 2 cos15=g 1 cos35 (1)

[0043] Step 2: During the continuous cutting process, the left-handed cutting edge 4 and the right-handed cutting edge 5 are alternately cut, that is, p=q=h;

[0044] (1) right-handed cutting edge 4 height q=h,;

[0045]

[0046]

[0047] When Z 2 >12 hours:

[0048]

[0049] When Z 2 <12 hours:

[0050]

...

Embodiment 2

[0064] Embodiment 2: Milling cutter diameter D=6mm, helix angle θ=15° of right-handed spiral flute 1, helix angle β=35° of left-handed chip splitting flute 2, number of right-handed spiral flutes Z 1 =10, the blade width of the right-handed cutting edge 4 is g 1 , the groove width g of the left-handed helical groove 2 2 , the number of left-handed chip splitters Z 2 ; The specific design method steps are as follows:

[0065] Step 1: Ensure that there is no "empty cutting phenomenon" in the continuous cutting process, that is, it needs to be satisfied;

[0066] g 2 cos15=g 1 cos35 (1)

[0067] Step 2: In the continuous cutting process, the left-handed cutting edge 4 and the right-handed cutting edge 5 are alternately cut, that is, p=q=h is satisfied;

[0068] (1) Right-handed cutting edge 4 height q=h;

[0069]

[0070]

[0071] When Z 2 When >10:

[0072]

[0073] When Z 2 When <10:

[0074]

[0075] (2) Left-handed cutting edge 5 height p=h;

[0076] ...

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Abstract

The invention belongs to the technical field of difficult-to-process material cutting and processing, and relates to a micro-tooth design method capable of realizing alternative cutting of left and right cutting edges. The method can realize a processing way of alternative cutting of a right rotary cutting edge and a left rotary cutting edge on different sections of an effective cutting part of amulti-edge milling cutter, and guarantees continuous action that CFRP surface layer fibres bear axial force in different directions, so that the purpose of restraining occurrence of burrs of a high-speed milling carbon fibre composite material surface layer is realized. Micro teeth of a peripheral edge are designed, and structure parameters of a milling cutter are determined, so that a design method capable of realizing alternative cutting of the left and right cutting edges is guaranteed. The micro-tooth design method has very good universality and a high engineering application value, and can finally realize high-speed, stable and effective processing under great cutting dosage of carbon fibre composite materials.

Description

technical field [0001] The invention belongs to the technical field of cutting processing of composite materials, and relates to a multi-tooth design method capable of realizing alternate cutting of left-handed and right-handed cutting edges. , The machining method of alternating cutting with right-handed cutting edges can effectively solve the problem of burrs and tears on the upper and lower surfaces when milling carbon fiber composite materials at high speed. Background technique [0002] Composite materials have performance advantages such as high specific strength, light weight and strong bearing capacity, and are widely used in the development of modern industry. However, composite materials are typical difficult-to-machine materials. Due to their anisotropic and heterogeneous material characteristics, the existing metal milling tools have poor matching with materials, especially for the upper and lower surface fibers. Constrained by the material, damages such as burr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/00
CPCB23C3/00
Inventor 王福吉贾振元王泽刚张博宇赵猛成德卢晓红
Owner DALIAN UNIV OF TECH