Method for determining addendum and binder surfaces of...

Details Method for determining addendum and binder surfaces of... Method for determining addendum and binder surfaces of...

2006-01-26

2008-12-09

Phan, Thai (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Modeling by mathematical expression

C700S098000, C700S118000, C700S163000

Reexamination Certificate

active

07464011

ABSTRACT:
A method for determining compensated addendum and binder surfaces as part of a springback compensated stamping die for producing a stamped part includes modeling of the existing addendum surface and binder surface of the stamping die. The addendum and binder surfaces are modified according to a number of compensatory surface displacements and in-plane rotations required for springback compensation of the finished stamped part. Following this modification, the stamped part may be separated from the addendum and binder without a loss of dimensional accuracy.

REFERENCES:
patent: 6947809 (2005-09-01), Ren et al.
patent: 2006/0293776 (2006-12-01), Hillman et al.

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