Experimental investigation and theoretical analysis of roll forming of electrical resistance welded pipes

Roll forming is a general term used to describe a large class of continuous manufacturing processes where a long strip of sheet metal is deformed into products with desired geometry by passing through a series of rotating rolls arranged in tandem. Electrical resistance welded (ERW) pipe can be manufactured by roll forming. Based on the updated-Lagrange method in deformation mechanics, an elastic–plastic large deformation spline finite strip method is developed to analyze roll-forming ERW pipe. The longitudinal strains, the opening values, and the springback of the skelp are obtained. Simulated results are compared with the results obtained. They agree well with each other.