Investigations on laser welding of dissimilar joints of stainless steel and copper for hot crack prevention

2021 ◽  
Vol 33 (4) ◽  
pp. 042042
Author(s):  
Jonas Rinne ◽  
Sarah Nothdurft ◽  
Jörg Hermsdorf ◽  
Stefan Kaierle ◽  
Ludger Overmeyer
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Dissimilar Joints ◽  
Hot Crack

scholarly journals Weld bead profile of laser welding dissimilar joints stainless steel

2017 ◽  
Vol 257 ◽  
pp. 012072 ◽  
Author(s):  
Ghusoon R Mohammed ◽  
M Ishak ◽  
S N Aqida ◽  
Hassan A Abdulhadi
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
Weld Bead ◽  
Dissimilar Joints ◽  
Bead Profile

Metallurgical Investigations of Laser Welding of AISI 304 Stainless Steel

2008 ◽  
Vol 580-582 ◽  
pp. 41-44 ◽  
Author(s):  
Seiyed Ali Asghar Akbari Mousavi ◽  
A. Gharedaghi ◽  
Mohammad Mastoori
Keyword(s):  
Stainless Steel ◽  
Laser Welding ◽  
304 Stainless Steel ◽  
Geometrical Shape ◽  
Beam Diameter ◽  
Aisi 304 Stainless Steel ◽  
Aisi 304 ◽  
Lack Of Fusion ◽  
Hot Crack ◽  
Equiaxed Grains

Laser welding of AISI 304 stainless steel was carried out by pulsed Nd:YAG laser machine under different welding conditions. Geometrical shape of the joints was circular butt. Studies were focused on laser power, welding velocity, beam diameter and pulse duration. Microstructure of welded joints was investigated by optical microscopy (OM) and scanning electron microscopy (SEM). OM and SEM results show no evidence of grain growth in heat affected zone (HAZ). In addition, columnar and equiaxed grains are observed in the weld metal. Various defects such as lack of fusion, underfill, porosity, hot crack and mismatch are observed as a result of improper welding conditions. The best welding conditions to obtain minimum defects are presented.

Laser absorption in high-power fiber laser welding of stainless steel and aluminum alloy

2008 ◽  
Author(s):  
Naoyuki Matsumoto ◽  
Yousuke Kawahito ◽  
Masami Mizutani ◽  
Seiji Katayama
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Laser Welding ◽  
Fiber Laser ◽  
High Power ◽  
Fiber Laser Welding ◽  
Laser Absorption
Sign in / Sign up

Export Citation Format

Share Document