Progressive and transfer die stamping

Metal working – Method of mechanical manufacture – Assembling or joining

Reexamination Certificate

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Reexamination Certificate

active

07546669

ABSTRACT:
Numerous embodiments of a method to form a base plate for a hard disk drive are described. In one embodiment, a blank base plate is advanced through plurality of die stations and parts of the base plate are press worked to form a disk drive base plate. In one embodiment, the blank base plate may be press worked by stamping the base plate with a progressive die assembly. In an alternative embodiment, the blank base plate may be press worked by stamping the base plate with a transfer die assembly.

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