Patent ID: 6684505
Filing Date: 2004-02-03
Classification: B60R,Y10T

Abstract:
Method for manufacturing a bumper bar for a vehicle, comprising the steps of:(a) providing metal material to make the bar; (b) forming the metal material into a tubular extended element with a front flange for facing forwards in the same direction of motion of the vehicle and a rear flange with grooves therein, a top side and a bottom side, the tubular extended element having a closed cross-section and at least one bend between the rear flange and top side and at least one bend between the rear flange and the bottom side; and (c) shaping the tubular extended element by pressing at least one part of the rear flange against at least one part of the front flange with the bends acting as guides facilitating the pressing and the grooves in the rear flange being drawn out during the pressing and facilitating the shaping.