Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2007-03-20
2007-03-20
Frejd, Russell (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S007000, C700S178000
Reexamination Certificate
active
10105578
ABSTRACT:
A method for determining a die profile for forming a metal part having a desired shape. The method includes the steps of providing a nominal die profile, determining a springback profile based on the nominal die profile and employing a compensation strategy to determine the die profile based on the nominal die profile and the springback profile. There are disclosed five (5) compensation strategies: (1) a reversed die-normal technique; (2) a reversed radial rotation technique; (3) a reversed resultant vector technique; (4) a reversed path technique; and (5) a mirror image of resultant vector technique. Associated methods of making a die based on the die profile determined above and making a metal part under a set of forming conditions from the die are also disclosed.
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Chu Edmund W.
Makosey Stephen J.
Shoup Jeffrey M.
Alcoa Inc.
Borghetti Peter J.
Frejd Russell
Greenberg & Traurig, LLP
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