Optimization of sheet metal forming processes by the use of numerical simulations
Optimization of sheet metal forming processes by the use of numerical simulations
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DOI：
10.1016/s0924-0136(02)00786-0
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发表时间：
2002-12
影响因子：
6.3
通讯作者：
G. Gantar;T. Pepelnjak;K. Kuzman
中科院分区：
文献类型：
--
作者：
G. Gantar;T. Pepelnjak;K. Kuzman
如果要生产出没有任何缺陷的最终零件，开发过程必须通过基于有限元方法的数值模拟来支持。结合工业实例，介绍了优化板料成形工艺的经验。我们精心挑选了所给出的例子，以说明与板料成形有关的所有重要问题：最佳产品形状和最佳初始毛坯几何形状的确定、断裂预测、最终板材厚度预测、起皱预测、作用在活动刀具表面上的载荷预测、产品回弹和残余应力预测。数值模拟的结果与生产过程中的样品进行了比较。对执行数值模拟所需的结果、成本、收益和时间的可靠性进行了评估。
If the final part is to be produced without any defects, the development process has to be supported by means of numerical simulations based on finite element method (FEM). The experiences gained with optimization of sheet metal forming processes are presented on the industrial examples. The presented examples are carefully selected in order to present all important issues concerning sheet metal forming: determination of optimal product shape and optimal initial blank geometry, prediction of fracture, prediction of final sheet thickness, prediction of wrinkling, prediction of loads acting on the active tool surfaces, prediction of springback and residual stresses in the product. The results of the numerical simulations were compared to the samples from the production processes. Reliability of the results, costs, benefits, and times required for performing numerical simulations are evaluated.