Autogenous Laser Welding
Austenitic stainless steels and carbon steels love autogenous laser welding and no filler metal is required for strength or corrosion concerns. Sheets can be seamed together without any edge preparation with full weld penetration from one side.
Laser Hybrid Welding
Laser hybrid welding is useful for very specific applications when filler metal is required. The laser beam is combined with MIG welding puddle to push molten filler metal deep into weld joint. This process adds more heat and distortion than autogenous laser welding. Laser hybrid welding can also be used to increase weld speed or depth of penetration and provides more tolerance of joint fitup.