Analysis and optimization of the heat affected zone of CFRP by femtosecond laser processing

被引：17

作者：

Chen, Meiling ^{[1
]}

Guo, Baoshan ^{[1
,2
,4
]}

Jiang, Lan ^{[1
,2
,3
]}

Liu, Zhipeng ^{[1
]}

Qian, Qian ^{[1
]}

机构：

[1] Beijing Inst Technol, Sch Mech Engn, Laser Micro Nano Fabricat Lab, Beijing 100081, Peoples R China

[2] Yangtze Delta Reg Acad Beijing Inst Technol, Jiaxing 314019, Peoples R China

[3] Beijing Inst Technol Chongqing Innovat Ctr, Chongqing 401120, Peoples R China

[4] Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2023年 / 167卷

基金：

中国国家自然科学基金;

关键词：

Femtosecond laser; CFRP; Ablation threshold; Heat-affected zone; HOLE QUALITY; SINGLE; DAMAGE; COMPOSITES; ABLATION; PHYSICS; TOOL; UV;

D O I：

10.1016/j.optlastec.2023.109756

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, the processing threshold fluence of the carbon fiber reinforced polymers (CFRP) by a femtosecond laser ablating at different scanning speeds is studied, and the effects of processing parameters on the width of the heat-affected zone (HAZ) are discussed. The experimental results show that the ablation threshold of the carbon fiber in CFRP is about two times that of resin at the same scanning speed. At a given scanning speed, the minimum value of HAZ can be obtained when the laser fluence used is 50 similar to 60 times as great as the ablation threshold fluence of the carbon fiber. In addition, the width of the HAZ can be further reduced when the scanning direction is consistent the polarization angle of the linearly polarized laser. The minimum value of the HAZ obtained in the experiment is about 2 mu m, which is much smaller than the value in the previous literature.

引用

页数：8

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