High speed welding of deep drawing low carbon steel Available to Purchase

Armco designed a program to evaluate the laser weldability of a number of its products, in particular the deep drawing steels used to fabricate automotive body parts. Both coated and uncoated steels have been laser welded. Tensile, fatigue, microstructural, mircrohardness, corrosion, formability, and fracture toughness tests have been run on laser butt-welded samples. Improved fit-up by laser cutting has resulted in welding speeds as high as 15 m/min on 0.75 mm thick galvanized steel with a 2.5 KW laser. A large motion system has been integrated with the 2.5 KW laser to produce large prototype welded blanks.