As the accelerated development of new car models, based on the concept of DFM(design for manufacturing technologies),the company continued use of core technology owned tooling development, and customer to carry out simultaneous engineering work，including：
        Formability analysis of parts
        Blank specification & dimension optimization
        Poduct cost & quality risk analysis(Surface quality／rigidity)
        Planning for dimensions，tolerance allocation
        Matching analysis
        Tooling cost analysis

Improper surface design that result in wrinkle after flange.
Proposal is to reduce the trim line

Improper trim line design that result in insufficient cutter .
Proposal is to extend the trim line