Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2006-10-03
2006-10-03
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S030000, C700S071000, C703S007000
Reexamination Certificate
active
07117065
ABSTRACT:
A method for modifying a stamping die to compensate for springback includes the steps of stamping a first part using a base, or pre-existing die set, and creating a surrogate die having the shape of the first stamped part. These steps are followed by simulated stamping of a blank with the surrogate die, where the blank is shaped according to the desired finished part. Then, the base die is modified by mapping the forming stresses, from the stamped blank, to an indicator blank, which is allowed to relax and then is employed as a template for modification of the base die. Following this, the accuracy of the newly modified base die is determined by stamping a second part in the modified base die and by comparing a number of dimensions of the second part with a number of corresponding dimensions of the desired finished part.
REFERENCES:
patent: 6205366 (2001-03-01), Tang et al.
patent: 6785640 (2004-08-01), Lu et al.
patent: 6947809 (2005-09-01), Ren et al.
patent: 2003/0182005 (2003-09-01), Chu et al.
patent: 2004/0073323 (2004-04-01), Zhu et al.
patent: 2004/0176863 (2004-09-01), Ren et al.
Ren Feng
Xia Zhiyong Cedric
Artz & Artz
Ford Global Technologies LLC
Kasenge Charles
Kelley David B.
Picard Leo
LandOfFree
Method for modifying a stamping die to compensate for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for modifying a stamping die to compensate for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for modifying a stamping die to compensate for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3634202