CFRP bonding pre-treatment with laser radiation of 3 μm wavelength: Laser/material interaction

被引：8

作者：

Blass, David ^{[1
]}

Kreling, Stefan ^{[1
]}

Nyga, Sebastian ^{[2
]}

Westphalen, Thomas ^{[2
]}

Jungbluth, Bernd ^{[2
]}

Hoffmann, Hans-Dieter ^{[2
]}

Dilger, Klaus ^{[1
]}

机构：

[1] TU Braunschweig, Inst Joining & Welding, Langer Kamp 8, D-38106 Braunschweig, Germany

[2] Fraunhofer Inst Laser Technol, Steinbachstr 15, D-52074 Aachen, Germany

来源：

LASER-BASED MICRO AND NANOPROCESSING X | 2016年 / 9736卷

关键词：

CFRP; adhesive bonding; frequency conversion; optical parametric oscillator; multimode laser radiation; SURFACE PRETREATMENT; ADHESIVE;

D O I：

10.1117/12.2209514

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Laser radiation of 3 mu m wavelength was generated by frequency conversion of an industrial IR laser and applied in the context of CFRP bonding pre-treatment. Reinforced and non-reinforced epoxy resins were treated with this radiation varying the relevant parameters such as laser power or treatment time. The interaction between laser radiation of 3012 nm and 1064 nm wavelength and matrix resin was analyzed mechanically (e.g. ablation depth), optically (such as fiber exposure) and chemically (e.g. contamination removal). The results gathered show that, even with the small achievable pulse fluences, a sufficient treatment of the specimens and a sensitive removing of the contaminated layers are possible.

引用

页数：11

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