Browse Publications Technical Papers 2018-36-0022
2018-09-03

One piece hot formed AB ring reinforcement 2018-36-0022

The usage of Boron steel in the South American automotive industry has been increasing in recent years. Considering its high hardening properties, sheet metal parts can only be manufactured using a hot forming process, as compared to a conventional cold forming process; however, the hot stamping process offers the advantage to stamp a part in a single die vs. multiple dies using a regular cold stamping process. The main objective is to present the advantages of constructing the whole AB ring reinforcement out of Boron steel and made out of a single die, and no welding among the A pillar reinforcement, B Pillar reinforcement and rocker panel. This type of design has helped to achieve crash safety performance goals, enhance the structural characteristics of joints, improve dimensional control, reduce the number of welds, manage BIW overall weight and improve torsion rigidity.

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