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首页> 外文期刊>Production Engineering: Research and Development >Development of a warm cross wedge rolling process using FEA and downsized experimental trials
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Development of a warm cross wedge rolling process using FEA and downsized experimental trials

机译：利用有限元分析和缩小的试验规模开发热楔横轧工艺

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摘要

Cross wedge rolling is a forming technology that offers a lot of advantages: No flash occurs, cycle times are low, lubricants are not necessary and the machines are easy to automate. Currently, cross wedge rolling is applied at hot temperatures only. An adaption of this technology to warm temperatures (about 500-950℃) can increase the geometrical spectrum of warm forgings. The advantages of warm forged parts in comparison to hot forged parts are closer tolerances, reduced surface roughness, no scale and reduced decarburization. To apply cross wedge rolling at warm temperatures, the possibilities of defects e. g. internal voids and improper formed work pieces must be analysed. This paper describes the development of a warm cross wedge rolling process with one area reduction. The paper also includes results of finite element analysis (FEA), experimental trials with a downsized work piece and the adaption to the industrial work piece in original size. In the FEA simulations tools with serrations on the side have been used. The downsizing method is explained and the difference between FEA, downsized and originally sized work piece with the focus on forming forces, temperature distribution and defects are presented.
机译：楔横轧是一种成型技术，具有许多优点：不发生飞边，循环时间短，不需要润滑剂，并且机器易于自动化。目前，楔楔轧制仅在高温下进行。这项技术适应温暖的温度（大约500-950℃）可以增加温暖的锻件的几何光谱。与热锻件相比，热锻件的优点是公差更小，表面粗糙度降低，无氧化皮和脱碳能力降低。为了在温暖的温度下进行交叉楔形轧制，可能会出现缺陷e。 G。内部空隙和不正确的成型工件必须进行分析。本文介绍了一种减少了面积的热楔横轧工艺的发展。本文还包括有限元分析（FEA）的结果，使用尺寸减小的工件进行的试验以及适用于原始尺寸的工业工件的结果。在FEA仿真中，使用了侧面带有锯齿的工具。介绍了缩小尺寸的方法，并重点介绍了有限元分析，缩小尺寸和原始尺寸的工件之间的差异，重点是成形力，温度分布和缺陷。

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