Laser Welding of Dissimilar Metals and Efficiency Analysis

Sahin A. Z., Ayar T., Yilbas B. S.

LASERS IN ENGINEERING, cilt.19, sa.3-4, ss.139-152, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 3-4
  • Basım Tarihi: 2010
  • Dergi Adı: LASERS IN ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.139-152
  • Anahtar Kelimeler: Laser, welding, dissimilar metals, efficiency
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

Laser welding of stainless steel and mild sheets is considered and thermal efficiencies pertinent to welding are formulated. The weld bond mass ratio (alpha), weld mass loss ratio (beta), heat loss ratio (gamma) and mass fraction (delta = m(Ti)/m(tot)) are defined when formulating the first and second law efficiencies. The lump parameter technique is considered in the analysis. It is found that the first and second law efficiencies increases with weld bond mass ratio while it reduces with increasing weld mass loss ratio, heat loss ratio, and mass fraction. This reduction is sharp with increasing weld mass loss ratio.