铝合金钎焊构件超声探伤技术应用研究  

The application of ultrasonic flaw detection in aluminum alloy braze welding

作　　者：刘潇龙[1] Liu Xiaolong(The 10th Research Institute of China Electronics Technology Group Corporation,Sichuan Chengdu, 610036, China)

机构地区：[1]中国电子科技集团公司第十研究所

出　　处：《机械设计与制造工程》2019年第8期115-118,共4页Machine Design and Manufacturing Engineering

摘　　要：超声探伤是一种高效、低成本的无损检测技术。通过铝合金钎焊构件超声探伤应用试验研究,确定了适用于铝合金钎焊构件超声探伤的分辨率与扫描速度参数,确认了构件表面粗糙度对超声探伤的影响,以及超声探伤在一定条件下可适应的铝合金钎焊构件厚度,通过B-扫描、C-扫描方式,实现了平面焊缝的缺陷定位以及对多层钎焊构件焊缝的超声探伤。Ultrasonic flaw detection is a kind of non-destructive test which is efficient and low cost. Based on the ultrasonic flaw detection experiment on aluminum alloy braze welding, it presents the resolution ratio and scanning speed are confirmed, the effect of roughness, obtains the material thickness suitable for ultrasonic flaw detection. Using two methods of B-scan and C-scan, it realizes the positioning of defects in plane weld, accomplishes the ultrasonic flaw detection on multilayer braze welding.

关 键 词：无损检测 超声探伤 铝合金 钎焊 

分 类 号：TH162.1[机械工程—机械制造及自动化]