Warning: fopen(/home/virtual/kwjs/journal/upload/ip_log/ip_log_2022-10.txt): failed to open stream: Permission denied in /home/virtual/lib/view_data.php on line 88 Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/virtual/lib/view_data.php on line 89 Effect of Initial (Reference) Welding Current for Adaptive Control and It's Optimization to Secure Proper Weld Properties in Resistance Spot Welding

J Weld Join > Volume 33(6); 2015 > Article
Journal of Welding and Joining 2015;33(6):13-20.
DOI: https://doi.org/10.5781/JWJ.2015.33.6.13    Published online December 31, 2015.
Effect of Initial (Reference) Welding Current for Adaptive Control and It's Optimization to Secure Proper Weld Properties in Resistance Spot Welding
Ashadudzzaman Md.*, Il-Dong Choi**, Jae-Won Kim***, Dae-Geun Nam****, Yeong-Do Park*
Correspondence:  Yeong-Do Park,
Email: ypark@deu.ac.kr
Abstract
Many automotive companies are endeavoring to improve the quality of resistance spot welding by updatingbody-in-white (BIW) production line with adaptive control spot welding system to compensate the process disturbances such as gap, electrode wear, oxidized surfaces, poor fit up and adhesive etc. Most of the commercial adaptive weld controllers require proper “Initial Welding Schedule” or “Reference weld” to achieve compensation in welding parameters during real time welding. In this study, the compensation of a commercial adaptive weld controller had been observed and analyzed thoroughly for various process disturbances to find optimal initial welding schedule. It was observed that 90 percent of the expulsion current in constant current control as reference welding schedule conferred the maximum button diameter in adaptive control welding. Finally, effects of each disturbance in combined field disturbances system with adaptive control had also been confirmed with the design of experiment (DOE) by minitab?16 for combined disturbances situation and suitability of optimum initial weld current had also established with real body part validation test.
Key Words: Resistance spot welding, Adaptive control, Optimal welding current, Process disturbances


ABOUT
BROWSE ARTICLES
ARTICLE CATEGORY 
FOR CONTRIBUTORS
Editorial Office
#304, San-Jeong Building, 23, Gukhoe-daero 66-gil, Yeongdeungpo-gu, Seoul 07237, Korea
Tel: +82-2-538-6511    Fax: +82-2-538-6510    E-mail: koweld@kwjs.or.kr                

Copyright © 2022 by The Korean Welding and Joining Society.

Developed in M2PI