Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
권호 표지

A Study of Laser Joining for Polymer 2D Camber Compensation

폴리머 2D 캠버 보상을 위한 레이저용접 기술

  • Lee, Young-Min (Dept. of Computer Aided Dies and Mold, Korea PolytechnicsVI) ;
  • Yoon, Jin-Young (Mechanical and Automotive Engineering, Keimyung Univ.) ;
  • Song, Chi-Hun (Mechanical and Automotive Engineering, Keimyung Univ.) ;
  • Choi, Hae-Woon (Mechanical and Automotive Engineering, Keimyung Univ.)
  • 이영민 (한국폴리텍VI대학 컴퓨터응용금형과) ;
  • 윤진영 (계명대학교 기계자동차공학과 대학원) ;
  • 송치훈 (계명대학교 기계자동차공학과 대학원) ;
  • 최해운 (계명대학교 기계자동차공학과)
  • Received : 2012.05.29
  • Accepted : 2012.06.26
  • Published : 2012.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

A novel joining technology was developed to compensate the camber in polymers. The preheating laser beam circulates on the joining location and the accumulated heat serves to increase the flexibility of neighboring polymers. The temperature rises up to the glass transient temperature of the polymers and continually loading spring force closes the gap of camber. The irradiated laser was 808nm central wavelength and the power varied between 2Watt and 5Watt. The laps were adjusted between 3 and 10 and the optimum process parameters were 3Watt and 5 laps for the specific application. An FEM analysis was introduced to understand the mechanism of joining by the transient temperature distribution on the polymers. Thermocouples experiments were also tried to correlate the numerical analysis results and it showed the trend of heat accumulation in experiments.

Keywords