CAJ | 학술논문

分析了利用声发射技术，实现对摩擦叠焊工艺动态监测的可行性，在对金属材料的金相组织特性以及动态摩擦研究的基础上，将声发射技术用于摩擦叠焊焊接工艺监测。在摩擦叠焊焊接过程中，进行声发射特征信号的特征参数提取，以表述焊接工艺的相应摩擦状态，从而实现对摩擦叠焊成形机理的研究。利用声发射技术监测焊接过程的平稳性，以保证焊接质量；另外，介绍了声发射技术应用于摩擦叠焊工艺优化中体现出的优势，现阶段存在的难点及未来的主要发展方向。
분석료이용성발사기술，실현대마찰첩한공예동태감측적가행성，재대금속재료적금상조직특성이급동태마찰연구적기출상，장성발사기술용우마찰첩한한접공예감측。재마찰첩한한접과정중，진행성발사특정신호적특정삼수제취，이표술한접공예적상응마찰상태，종이실현대마찰첩한성형궤리적연구。이용성발사기술감측한접과정적평은성，이보증한접질량；령외，개소료성발사기술응용우마찰첩한공예우화중체현출적우세，현계단존재적난점급미래적주요발전방향。
Based on analysis of using acoustic emission technology,realized the dynamic monitoring of the feasibility of friction stitch welding process.On the basis of study of the material of metal material dynamic friction characteristic,the a-coustic emission technology was used for friction stitch welding process monitoring.In different friction welding process, the characteristic parameters of acoustic emission signals,the characteristic parameter to describe friction welding process of the corresponding state can realize the study of forming mechanism of the friction stir welding.By using acoustic emission technology,monitored the stability of welding process to ensure the welding quality.In addition,the paper introduced the advantages of the acoustic emission technique applied to friction stir welding process optimization,the existing difficulties and future the main developing direction.