The Design of Manufacturing Process Optimization for Aluminum Laser Welding using Remote Scanner

Kim, Dongyoon; Park, YoungWhan

Journal of KWJS 2011;29(6):82-87.
Published online January 20, 2012.

원격 스캐너를 이용한 알루미늄 레이저 용접에 대한 생산 공정 최적화 설계

The Design of Manufacturing Process Optimization for Aluminum Laser Welding using Remote Scanner

Abstract

  In this study, we conducted laser welding by using remote scanner that is 5J32 aluminum alloy to observe the mechanical properties and optimize welding process parameters. As the control factors, laser incident angle, laser power and welding speed were set and as the result of weldablility, tensile shear tests were performed. ANOVA (Analysis of Variation) was also carried out to identify the influence of process variables on tensile shear strength. Strength estimation models were suggested using regression alnalysis and 2nd order polynomial model had the best estimation performance. In addition optimal welding condition was determined in terms with wedalility and productivity using objective function and fitness function. Final optimized welding condition was laser power was 4 ㎾, and welding speed was 4.6 m/min.

Key Words: Aluminum laser welding, Remote scanner, Strength estimation, Process parameters optimization