Optimization of the Heat Treatment Layout and Blank Outline of THTB
Optimization of the Heat Treatment Layout and Blank Outline of THTB
复制标题
THTB热处理布局及毛坯轮廓的优化
DOI：
10.4028/www.scientific.net/kem.554-557.2465
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
M. Merklein
中科院分区：
文献类型：
--
作者：
M. Lechner;A. Kuppert;H. Hagenah;M. Merklein
定制热处理毛坯 (THTB) 是增强高强度钢或铝合金毛坯成形性的创新方法的通用术语。该技术的关键思想是通过局部热处理来调整机械性能。基于新的性能分布，可以改善成形操作过程中的材料流动并提高成形极限。与传统的温度辅助方法相比，成形是在室温下进行的，因此可以利用冷成形工艺的所有优点。应用中最具挑战性的是热处理布局的定义。到目前为止，布局的尺寸是通过耗时的试错过程确定的。本文提出了一种自动优化热处理布局和毛坯轮廓的新方法。
Tailored heat treated blanks (THTB) is the generic term for an innovative approach to enhance the formability of blanks made out of high strength steel or aluminum alloys. Key idea of the technology is the adaption of the mechanical properties by a local heat treatment. Based on the new property distribution, the material flow during the forming operation can be improved and the forming limit can be enhanced. In comparison to conventional temperature assisted approaches the forming is performed at room temperature and therefore all advantages of a cold forming process can be used. Most challenging within the application is the definition of the heat treatment layout. Up to now the layout is dimensioned in a time-consuming trial and error procedure. In this paper a new approach for the automatic optimization of the heat treatment layout and the blank outline is presented.