Local Design and Near Net Shape Optimization of Typical Ultra-high Strength Steel B-pillar in Hot Stamping

摘要

Due to the deep drawing structure and box-shaped design in hot stamping, the typical ultra-high strength steel B-pillar was reasonably optimized to eliminate wrinkles in big end, assure the blank in the right position and meet the requirements of assembly. The finite element inverse algorithm was used to reverse the original blank of optimized part and production experiments of full-scaled part were performed to analyze the effect of optimized blank on the forming process.