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The Research on Servo-Flexible Stamping Applied in Sheet Metal Forming of Tailored Blanks of Advanced High Strength Steel

Zhimin Liu  Jinghai Zhang  Zhihui Wang  
【摘要】:The advanced high strength steel B pillar was designed to be a tailored blank component which combines tailor welded blanks with tailor rolled blanks,and the formability of the B pillar was studied through the finite element method.Applying new servoflexible stamping can obviously improve the deep drawability of advance high strength steel B pillar,and improve the deepness of B pillar by about 18%.Furthennore,the variable blank holder force curves were optimized,based on the plastic theory and energy method.

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