SHEET METAL FORMING APPARATUS

摘要

A sheet metal forming apparatus comprising an upstanding member having a pressure foot on the upper end thereof movable into a work clamping position. A rotatable forming member engages the free edge of the workpiece and reversely bends it about a lip formation provided on the pressure foot. Prior to the completion of the bending operation, the pressure foot is pivotally withdrawn from the workpiece to permit the forming member to overbend the reversely bent portion of the workpiece beyond 180 DEG and permit the natural resiliency of the material to restore the reversely bent portion to a true 180 DEG reverse bend.