A Simultaneous Engineering Approach for Automotive Structural Cross Members 930524

A simultaneous Design/Process/Material engineering approach for the analysis of automotive structural cross member designs is presented. It is shown that it is possible at the product design stages to evaluate i. forming severity, ii. blank shape and nestability, iii. spotting requirements, and iv. structural analysis based on yield stress and thickness distributions after forming.
The approach allows the reduction of material content in the part (by nesting and possible weight reduction), a better estimate of part performance during stamping, the evaluation of the effect of the material properties, the construction of the blanking die at the same time as production form tooling, and the reduction of a significant portion of the product design/manufacturing cycle. A production cross member is used to validate the approach. The production cross member information also served as a basis for a new prototype cross member.


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