Laser welding of automobile double-linked gears

Yu Wang; Xichen Yang; Jianbo Lei; Chunping Zhao; Hongxin Bi

doi:10.1117/12.765628

4 January 2008 Laser welding of automobile double-linked gears

Yu Wang, Xichen Yang, Jianbo Lei, Chunping Zhao, Hongxin Bi

Proceedings Volume 6825, Lasers in Material Processing and Manufacturing III; 68250B (2008) https://doi.org/10.1117/12.765628
Event: Photonics Asia 2007, 2007, Beijing, China

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.

Citation Download Citation

Yu Wang, Xichen Yang, Jianbo Lei, Chunping Zhao, and Hongxin Bi "Laser welding of automobile double-linked gears", Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 68250B (4 January 2008); https://doi.org/10.1117/12.765628

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available