Acoustic emission A promising and challenging technique for process monitoring in sheet metal forming
Acoustic emission A promising and challenging technique for process monitoring in sheet metal forming
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DOI：
10.1016/j.jmapro.2017.08.002
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发表时间：
2017-10-01
影响因子：
6.2
通讯作者：
Woelki, Kai
中科院分区：
文献类型：
--
作者：
Behrens, Bernd-Arno;Huebner, Sven;Woelki, Kai
声发射（AE）是一种无损检测方法，具有很高的潜力，在金属板材成形的质量和过程监测。在本文中，这种测试方法的可能性和局限性方面的金属板成形。为此目的，通过深冲，由低碳（DC 06）以及双相钢（HCT 600X）制造了几个矩形杯。测量的声发射的分析集中在两个目标。首先，建立了裂纹与所获得的声发射之间的相关性。分析的第二个目的是验证AE技术用于工艺监测的适用性。结果表明，在拉深过程中产生的声发射不仅可以检测裂纹，而且可以检测不同的工艺偏差，如缺乏润滑和错误的材料。但必须考虑到，声发射技术作为过程监测工具的可行性取决于材料的延展性，这限制了应用领域。(C)2017年制造工程师协会。由爱思唯尔有限公司出版。保留所有权利。
Acoustic emission (AE) is a non-destructive testing method with a high potential for quality and process monitoring in sheet metal forming. In this paper the possibilities and limitations of this testing method with regard to sheet metal forming are presented. For this purpose several rectangle cups were manufactured from the low carbon (DC06) as well as the dual-phase steel (HCT600X) by deep drawing. The analysis of the measured acoustic emissions was focused on two objectives. First, a correlation between the cracking and the acquired resulting acoustic emissions were created. The second objective of the analysis was to verify the suitability of the AE-technique for process monitoring. The results have shown that acoustic emissions arised during the deep drawing process enable not only the detection of crackings, but also different process deviations such as lacking lubrication and wrong material. But it has to be considered that the feasibility of the acoustic emission technique as a process monitoring tool depends from the material ductility which limits the fields of application. (C) 2017 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.