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Carbon fiber resin-based composite material green light ultrafast laser machining system and method

A technology based on carbon fiber resin and composite materials, applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of insufficient laser energy utilization rate, low laser energy utilization rate, low processing accuracy and efficiency, etc., to achieve Improved processing quality, small processing heat-affected zone, and high processing efficiency

Inactive Publication Date: 2020-09-04
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution also has the problem of low efficiency, and the carbon fiber reinforced matrix composite material is soaked in water for a long time, the parts are easy to expand and deform, and the dimensional accuracy cannot be guaranteed
At the same time, the utilization rate of laser energy is not high enough, and the heat-affected zone is also large
[0008] As mentioned above, there is an urgent need to provide a laser processing technology to solve the defects of the heat-affected zone and excessive heat damage, burrs, and spinning of aerospace components in the laser processing process of carbon fiber-reinforced resin-based composite materials, which lead to material failure. The problem of low processing accuracy and efficiency; the problem of residual waste when traditional continuous and long-pulse laser Gaussian laser cutting carbon fiber reinforced resin matrix composites; and the low utilization rate of laser energy and low processing efficiency

Method used

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  • Carbon fiber resin-based composite material green light ultrafast laser machining system and method
  • Carbon fiber resin-based composite material green light ultrafast laser machining system and method
  • Carbon fiber resin-based composite material green light ultrafast laser machining system and method

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Effect test

Embodiment 1

[0031] like figure 1 As shown, the carbon fiber resin matrix composite green light ultrafast laser processing system 10 provided in the first embodiment includes a green light laser 11, a beam expander 12, a first spatial light modulator 13, a first reflection mirror 14, a first Lens 15, first beam splitter 16, first monitoring part 17, second spatial light modulator 18, second mirror 19, double lens group 20, second beam splitter 21, second monitoring part 22, second The lens 23, the moving part, and the control part.

[0032]The green laser 11 is used for emitting green laser.

[0033] The beam expander 12 collimates the green laser light emitted by the green laser 11 .

[0034] The first spatial light modulator 13 divides the collimated single beam of green Gaussian laser into multiple beams, and the incident angle of the light reaching the first spatial light modulator 13 should be controlled within 10°, and the multiple laser beams should be separated by a certain dista...

Embodiment 2

[0054] The second embodiment is to cut and process the assembly interface of the 2mm thick satellite connection frame. The material of the satellite connection frame is T800 carbon fiber reinforced epoxy-based composite material S. The dimensional accuracy and shape and position accuracy are required to reach precision IT3, and the processing surface is smooth and free of burrs. It cannot be delaminated, and the processing heat affected zone must be strictly controlled within 20μm.

[0055] First, use 99.7% absolute ethanol to wipe the surface of the carbon fiber reinforced resin matrix composite material S to reduce the influence of other factors. In this embodiment, a green femtosecond laser is used for cutting. The optimized laser parameters are power 10W, scanning speed 1000mm / s, energy 13J, and the overlap ratio (scanning direction) of the annular spot is 90%. Using the laser processing system 10 described in the first embodiment, the multi-beams of annular light with uni...

Embodiment 3

[0059] The third embodiment is to cut and process the assembly interface of the 5mm thick satellite connection frame. The material of the satellite connection frame is T800 carbon fiber reinforced epoxy-based composite material S. The dimensional accuracy and shape and position accuracy are required to reach precision IT3, and the machined surface is smooth and free of burrs. It cannot be delaminated, and the processing heat affected zone must be strictly controlled within 20μm.

[0060] First, use 99.7% absolute ethanol to wipe the surface of the carbon fiber reinforced resin matrix composite material S to reduce the influence of other factors. In this embodiment, a green light picosecond laser is used for cutting, and the optimized laser parameters are power 8.5W, scanning speed 1200mm / s, energy 15J, and annular spot overlap ratio (scanning direction) is 90%. Using the laser processing system 10 described in the first embodiment, the multi-beams of annular light with uniform...

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Abstract

The invention provides a carbon fiber resin-based composite material green light ultrafast laser machining system and method, and the high-quality, high-precision and efficient machining requirement of aerospace component carbon fiber enhanced resin-based composite materials can be really met. The provided green light ultrafast laser machining system comprises a green light laser device, a beam expanding lens, a first space light modulator, a first reflector, a first lens, a first beam splitter, a first monitoring part, a second space light modulator, a second reflector, a dual-lens set, a second beam splitter, a second monitoring part, a second lens and a control part. The provided green light ultrafast laser machining method is characterized in that the above green light ultrafast lasermachining system is adopted for adjusting green light gauss lasers into 20 or more of flat top annular beams at a certain interval for machining the carbon fiber resin-based composite materials.

Description

technical field [0001] The invention belongs to the field of laser precision machining of composite materials, and in particular relates to a preparation method of a carbon nanotube-reinforced copper-based composite material contact wire for high-speed railway power grids with high machining quality, machining accuracy and machining efficiency. [0002] technical background [0003] Carbon fiber reinforced resin matrix composites have excellent properties, high specific strength and modulus, small thermal expansion coefficient, good thermal conductivity and electrical conductivity; excellent creep resistance, fatigue resistance, chemical corrosion resistance, wear resistance, and self-lubricating properties . It has been widely used in aerospace and other fields. For example, some satellite components use carbon fiber-reinforced epoxy- and cyanate-based composites such as T700, T800, and M40J. In order to meet the follow-up precision matching, connection and assembly requir...

Claims

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Application Information

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IPC IPC(8): B23K26/38B23K26/064B23K26/067B23K26/0622B23K26/06B23K26/03B23K26/60B23K26/70B23K26/40
CPCB23K26/032B23K26/0643B23K26/0648B23K26/0673B23K26/38B23K26/402B23K26/0622B23K26/064B23K26/60B23K26/702
Inventor 郑重黄刚刘顿杨奇彪陈列娄德元操文泽陈波
Owner HUBEI UNIV OF TECH
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