Joule heating of the forming zone in incremental sheet metal forming: Part 1
Joule heating of the forming zone in incremental sheet metal forming: Part 1
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DOI：
10.1007/s00170-016-9786-7
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发表时间：
2017-07-01
影响因子：
3.4
通讯作者：
Magnus, Christian S.
中科院分区：
文献类型：
--
作者：
Magnus, Christian S.
用于小批量零件生产的金属板料渐进成形在研究和工业上都越来越受到关注。最近，在高温下的金属板渐进成形已经被研究，涉及减小成形力、减小回弹、增加成形零件的几何精度以及其对难成形材料的适用性。本文概述了在最先进的分析中使用的加热方法。它侧重于区域焦耳加热的移动成型区与多达两个移动成型工具。焦耳加热和发生电阻的设置的理论背景。在提供了一个过程设计，以实现所需的特性，这项工作提出了一个简化的模型，用于计算的成形区的温度。
Incremental sheet metal forming for the production of parts in small lot sizes is of growing interest both in research and in industry. Recently, incremental sheet metal forming at elevated temperatures has been investigated concerning reduced forming forces, reduced spring-back, increased geometrical accuracy of the formed parts and its applicability for hard-to-form materials. This paper gives an overview of the used heating methods in a state-of-the-art analysis. It focuses on regional Joule heating of the moving forming zone with up to two moving forming tools. The theoretical background is presented for Joule heating and occurring electrical resistances in the setup. After delivering a process design to achieve the desired characteristics, this work presents a simplified model for the calculation of the temperature of the forming zone.