Investigation of bow defect in roll forming

Abstract

Even though New materials are coming into the market Aluminum Alloy is still widely used in Aerospace, Automobile and defense industries. The main reason is these alloys are light weight, high strength and easy to recycle. Many traditional methods like punching, shearing and blanking has been widely used previously to deform these sheets in different industries. Meanwhile, roll forming which is die less processing method, has been used for manufacturing of parts for automobiles and aircrafts structure parts. In this paper, combination of numerical simulation and experimentation of Aluminum alloy 5052 for bow reduction has been studied for U-shape sections. From results it was concluded that the bow defect is significantly reduced by increasing the forming speed of forming rollers.