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Proceedings Paper

Laser marking of stainless steel with a Q-switched Nd:YAG laser
Author(s): Jun Qi; Kunlin Wang; Mianchang Liang; Yunming Zhu; Minggang Fang
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Paper Abstract

Laser marking of stainless steel with a Q-switched Nd:YAG laser has been studied in this paper. In experiments, three vital factors of a Q-switched Nd:YAG laser were chosen as control factors: electric current used for generating laser beam, pulse frequency and traverse speed of laser beam. Optical microscope and scanning electron microscope, surface profile instrument were used to measure effect of control factors on mark depth and width. An image-analysis system with a frame-grabber card and a charged-couple-device (CCD) was used to test mark contrast. The relationship between control factors and mark quality characteristics has been obtained.

Paper Details

Date Published: 15 August 1998
PDF: 5 pages
Proc. SPIE 3550, Laser Processing of Materials and Industrial Applications II, (15 August 1998); doi: 10.1117/12.317903
Show Author Affiliations
Jun Qi, Tsinghua Univ. (China)
Kunlin Wang, Tsinghua Univ. (China)
Mianchang Liang, Tsinghua Univ. (China)
Yunming Zhu, Univ. of Macau (China)
Minggang Fang, North China Research Institute of Electro-Optics (China)


Published in SPIE Proceedings Vol. 3550:
Laser Processing of Materials and Industrial Applications II
ShuShen Deng; S. C. Wang, Editor(s)

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