Share Email Print

Proceedings Paper

Laser welding of automobile double-linked gears
Author(s): Yu Wang; Xichen Yang; Jianbo Lei; Chunping Zhao; Hongxin Bi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper, 5Kw CO2 laser and a special CNC table were used to weld automobile double-linked gears with 20CrMnTi material and Y gap. A lot of evaluations on microstructure, defects and mechanical properties for welding seam were examined by OM, SEM and X-ray diffraction. It was shown that deep penetration welding in the double-linked gear could be achieved at optimum parameters of 2.6~2.8KW and 2M/min. Laser welding had a small distortion of 0.0408mm in gear diameter. Microstructure of fine martensite and austenite was observed in the welding seam. Mechanical tests of hardness of HV400 and tordional strength of 1512Nm were measured. The welding seam had a comprehensive intensity and toughness. The defects of blowhole and crack could be reduced or avoided by adjusting parameter and preheating before welding. The allowable standard of laser welding of automobile double-linked gears was recommended.

Paper Details

Date Published: 4 January 2008
PDF: 8 pages
Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 68250B (4 January 2008); doi: 10.1117/12.765628
Show Author Affiliations
Yu Wang, Tianjin Polytechnic Univ. (China)
Xichen Yang, Tianjin Polytechnic Univ. (China)
Jianbo Lei, Tianjin Polytechnic Univ. (China)
Chunping Zhao, Tianjin Automobile Gear Factory (China)
Hongxin Bi, Tianjin Automobile Gear Factory (China)

Published in SPIE Proceedings Vol. 6825:
Lasers in Material Processing and Manufacturing III
ShuShen Deng; Akira Matsunawa; Xiao Zhu, Editor(s)

© SPIE. Terms of Use
Back to Top