Patent ID: 6112568
Filing Date: 2000-09-05
Classification: B21D

Abstract:
In a punch press having opposed one and other turrets, holder means for grasping a to be fabricated worksheet placed between said one and other turrets and motor means for driving a drive means along a first direction, a method of effecting forming to said worksheet comprising the steps of:a) fitting to said one turret one rotatable tool;b) fitting to said other turret an other rotatable tool that operates cooperatively with said one tool;c) controllably energizing said motor means to drive said drive means along said first direction to thereby drive at least one of said one and other tools along a second direction substantially perpendicular to said first direction so as to move said one and other tools to a predetermined distance relative to each other to effect forming on said worksheet; andd) driving said holder means to move said worksheet so as to cause said tools to respectively and coactingly roll along the opposite surfaces of said worksheet to thereby effect roll forming on said worksheet.