ROLL FORMING METHOD OF A DOOR BELT FOR A VEHICLE CAPABLE OF REDUCING THE ENTIRE WEIGHT BY FORMING IN A ROLL FORMING METHOD USING AN ALUMINUM MATERIAL

摘要

PURPOSE: A roll forming method of a door belt for a vehicle is provided to enable easy welding and bonding since the conductivity of a door belt of a vehicle is good.;CONSTITUTION: A roll forming method of a door belt for a vehicle comprises next steps. Roll forming is made on the central part of a coil to form a protrusion upwardly(S110). Roll forming is made so that the left of the coil is bent downwardly and the right of the coil upwardly(S120). A part is downwardly roll formed between protrusions of the central part of the coil on the left of the coil(S130). Roll forming is made at the coil so that a part from the protrusion to the left is downwardly bent(S140). The coil is subsequentially roll formed to form a door belt of a vehicle. The coil is formed from aluminum.;COPYRIGHT KIPO 2012