Patent ID: 7546669
Filing Date: 2009-06-16
Classification: B21D,Y10T

Abstract:
1. A method, comprising: advancing a base plate through a plurality of die stations of a progressive die assembly, wherein the base plate includes a scrap skeleton portion; press working a voice coil motor relief surface, a motor sitting relief, and a flex circuit opening relief in the base plate; press working a disk relief surface and an actuator relief surface and forming a rest area near the disk relief surface in the base plate; cold forging one or more bosses in the base plate; forming additional bosses and one or more piercing bend reliefs in the base plate; forming a motor hub, flex circuit openings, piercing holes and a bend relief in the base plate; trimming the base plate; press working the base plate to form side frames; trimming the scrap skeleton portion from the base plate; machining the base plate to refine datums.