This paper presents simulation of drawing force and thickness deformation in deep drawing which employs semi-active blank holder force control system, to solve the problem of cracking and wrinkling. The method of slab with feed back control failure criteria, was employed to make the modeling system and the semi-active blank holder to prevent wrinkling and cracking in forming low carbon steel sheet, without lubrication (=0.4). In this study, the mechanical properties of the material were chosen since that they equivalent to those of low carbon steel with its thickness of 0.2 mm, K= 572 N/mm2, UTS= 391 N/mm2, yield stress= 309 N/mm2 and n= 0.2. The diameter and the depth of the cylindrical cup-shaped product were 40 mm and 10 mm, respectively. Results from simulation have shown that the semi-active blank holder system can control very responsive against changing of deformation condition. The optimum of initial blank holder force is approximately 3000 N up to 4000 N. In the early stages (initial stroke), blank holder force system could be responsive to prevent cracking, and at the end of the punch stroke, it is very effective to prevent wrinkling. Simulation of semi-active blank holder force control system is excellent in model formation to prevent cracking and wrinkling.
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机译：本文介绍了采用半主动毛坯夹持器力控制系统的深拉伸中拉伸力和厚度变形的模拟，以解决开裂和起皱的问题。采用带有反馈控制失效准则的板坯方法制作建模系统和半活性坯料夹持器，以防止低碳钢板成形时起皱和开裂，而无需润滑（= 0.4）。在这项研究中，选择了材料的机械性能，因为它们等效于厚度为0.2 mm，K = 572 N / mm2，UTS = 391 N / mm2，屈服应力= 309 N / mm2的低碳钢。并且n ＝ 0.2。圆柱杯形产品的直径和深度分别为40 mm和10 mm。仿真结果表明，半主动坯料夹持器系统可以很好地响应变形条件的变化。初始毛坯夹持器力的最佳值约为3000 N至4000N。在早期阶段（初始行程），毛坯夹持器力系统可以响应以防止破裂，在冲头冲程结束时，它非常有效。防止起皱。半主动坯料夹持器力控制系统的仿真在防止裂纹和起皱方面非常出色。
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