摩擦叠焊状态监测新方法
黄江中1，许威1，张大伟1，柏青2，高辉3，焦向东3，周灿丰3
（1.海洋石油工程股份有限公司，天津 300451；2.北京化工大学 机电工程学院，北京 100029；3.北京石油化工学院 能源工程先进连接技术北京市高等学校工程研究中心，北京 102617）
摘要：摩擦叠焊是一种新型连接技术，其成形机理的研究关系到连接接头的质量。对摩擦叠焊过程中的摩擦状态进行监测可以为其成形机理的研究提供诸多信息，而将声发射技术应用于摩擦叠焊的状态监测是一种新型并且有效的方法。在摩擦叠焊工艺中金属材料发生塑性变形、晶格重组等现象，这些都是有效的声发射源，建立信号源与对应时间摩擦状态的关系可以有效地配置焊接工艺参数，因此目前研究的主要内容是分析声发射源信号特征参数与摩擦状态的关系。
关键词：摩擦叠焊；动态摩擦状态监测；声发射
中图分类号：TG409 文献标志码：A doi：10.3969/j.issn.1006-0316.2015.03.004
文章编号：1006－0316 (2015) 03－0014－04
A new method of friction stitch welding condition monitoring
HUANG Jiang-zhong1，XU Wei1，ZHANG Da-wei1，BAI Qing2，GAO Hui3，JIAO Xiang-dong3，ZHOU Can-feng3
( 1.Offshore Oil Engineering Co., Ltd., Tianjin 300451, China; 2.College of Mechanical and Electrical Engineering, Beijing University of Chemistry Technology, Beijing 100029, China; 3.Beijing Higher Institution Engineering Research Center of Energy Engineering Advanced Joining Technology, Beijing Institute of Petrochemical Technology, Beijing 102617, China )
Abstract：As friction stir welding is a new type of connection technology, the study of its forming mechanism is related to the quality of the connector. Friction state of friction stir welding process monitoring can provide lots of information to the research of its forming mechanism, and the acoustic emission technique applied to condition monitoring of friction stir welding is a new and effective method. In the friction stir welding process, metal materials change properties, such as plastic deformation, lattice restructuring, which are effective acoustic emission source, and build a relationship of signal source and the corresponding time friction state can effectively configuration of welding process parameters, so the main content of the present study is to find the acoustic emission source signal characteristic parameters and the friction state relationship.
Key words：friction stitch welding；dynamic friction condition monitoring；acoustic emission
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收稿日期：2014－04－28
作者简介：黄江中（1983－），男，工程师，硕士，主要从事海油工程焊接设备及工艺研究工作。
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