DRAW AND WALL IRON PROCESS FOR METAL CANS

摘要

A method for forming a container in a reduced number of steps and a container made therefrom which has a thin upper wall section and a heavier lower wall section and bottom to provide extra resistance to impacts in the more normally vulnerable areas of the container, the method also comprehending forming a container from a wall ironed cup and leaving a flange on the open top of the container thus eliminating a common problem of split flanges and also simplifying the trimming operation by a simple die cut rather than by conventional rotary knife cutting.