Determination of stretch-bendability of sheet metals
Determination of stretch-bendability of sheet metals
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DOI：
10.1016/0890-6955(95)00035-6
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发表时间：
1996-05
期刊：
影响因子：
--
通讯作者：
A. El-Domiaty;M. Shabara;M. Al-Ansary
中科院分区：
文献类型：
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作者：
A. El-Domiaty;M. Shabara;M. Al-Ansary
当今的金属板成形工业主要依赖于基于经验的方法来寻找确保成功成形过程的成形极限。这种方法效率低下，显然需要成本效益高的以知识为基础的计算机辅助技术。本文介绍了一个拉弯成形过程的数学模型。该模型能够执行所有必要的计算，以确定材料特性对工艺参数的影响，如成形载荷、产品几何形状、回弹和残余应力。从这个模型，从生产率的各种材料参数的意义，易于制造，和工具设计的观点可以进行评估。这将有助于开发和优化使用具有改进性能的片材。
Today's sheet-metal forming industry relies mostly on experience-based methods for finding the forming limits which assure successful forming processes. Such methods are inefficient and there is an obvious need for cost-effective knowledge-based computer-aided techniques. In this paper, a mathematical model for stretch-bending processes is introduced. The model is capable of performing all calculations necessary to determine the effect of material properties on the process parameters such as forming loads, product geometry, springback and residual stresses. From this model, the significance of various material parameters from productivity, ease of fabrication, and tool design viewpoints can be evaluated. This should contribute to the development and optimum use of sheet materials with improved properties.