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Method for cutting two-phase composite through ultrafast laser

A composite material and ultra-fast laser technology, which is applied in laser welding equipment, welding/welding/cutting items, manufacturing tools, etc., can solve the problems of uneven laser cutting surface, easy falling off of non-metallic particles, discontinuous structure, etc. Small heat-affected zone, good method stability, continuous effect of cutting fine structure

Active Publication Date: 2018-11-16
BEIJING SATELLITE MFG FACTORY
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Problems solved by technology

[0004] The technical problem solved by the present invention is: in view of the current prior art, under the laser cutting of different materials with the same energy parameters, the difference in the hatching effect curve will cause the laser cut surface to be uneven, and the non-metallic particles in the particle-reinforced metal matrix composite material are easy to problems of exfoliation and structural discontinuity, a method for cutting two-phase composites using ultrafast laser

Method used

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  • Method for cutting two-phase composite through ultrafast laser
  • Method for cutting two-phase composite through ultrafast laser
  • Method for cutting two-phase composite through ultrafast laser

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Experimental program
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Embodiment Construction

[0025] use as figure 1 The laser cutting system shown specifically includes an ultrafast laser 1, an optical parametric amplifier 2, an energy attenuator 3, an optical shutter 4, a focusing lens 5, a moving platform 6, and a two-phase composite material 7 to be processed;

[0026] A method for cutting a two-phase composite material using an ultrafast laser, the specific steps are as follows figure 2 as shown,

[0027] Step 1: Turn on the laser, adjust the position and attitude of the internal components of the laser cutting system, and calculate the average value according to the wavelengths required for the single pulse sequence laser cutting of the two materials in the two-phase composite material, as the two-phase composite material laser cutting preset wavelength;

[0028] Step 2: Ensure that the optical path of the single-pulse sequence laser output in the test is turned on, and can pass through the energy attenuator, light-controlled light shutter, lens, and the compo...

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Abstract

The invention provides a method for cutting a two-phase composite through an ultrafast laser. According to the method for cutting the two-phase composite through the ultrafast laser, through finding of the intersection point of incubation effect curves of two different materials in the composite, the cutting speed, wavelength and cutting energy needed by the laser at the intersection point are obtained; the problem that in the prior art, the two-phase common threshold value, capable of meeting two materials, of the composite cutting single-pulse laser in the two-phase component is difficult tofind is solved, and the problem that in the two-phase component, a reinforcement phase or a matrix phase locally falls off, and a fine structure is discontinuous are solved; and the method is simplein process, clear in step and good in reliability.

Description

technical field [0001] The invention relates to a method for cutting a two-phase composite material by using an ultrafast laser, belonging to the field of ultrafast laser precision processing. Background technique [0002] Composite materials represented by metal matrix composite materials and carbon fiber reinforced resin matrix composite materials are the most advanced and competitive representative types of composite materials at present. They often feature high specific strength, high specific modulus, high temperature resistance, and corrosion resistance. , Fatigue resistance, good damping and shock absorption, good damage safety, performance design and other outstanding advantages are recognized by the world, and have become one of the most widely used basic materials in the aerospace field. Cutting processing is one of the important processing types of composite materials, and both contact processing and non-contact processing are applied. Due to the inherent propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/38B23K103/16
CPCB23K26/38
Inventor 张开虎张加波张夏明孙璨王小丹王磊张子岚
Owner BEIJING SATELLITE MFG FACTORY
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