点击次数：

论文类型： 期刊论文

发表时间： 2021-07-21

发表刊物： SCIENCE AND TECHNOLOGY OF WELDING AND JOINING

卷号： 17

期号： 1

页面范围： 36-41

ISSN号： 1362-1718

关键字： Explosive welding; Simulation; Smoothed particle hydrodynamics method; Wavy interface

摘要： Explosive welding technology has been widely used in industrial production. However, there is always a controversy on the mechanism of explosive bonding, whether explosive welding should belong to a kind of mature welding such as a fusion welding or a solid phase welding. Based on the observation and analysis of the metallographs at interfaces, various opinions are proposed by different authors. This paper investigated the various mechanisms of the wavy interface formation in explosive welding and tried to determine a more reasonable one by using smoothed particle hydrodynamics method. The numerical analysis results show that explosive welding is a unique and complex kind of welding. In general cases, high pressure and melted particles can be found in the collision area at the interface. A version, in which explosive welding is a combination of diffusion bonding, fusion bonding and pressure welding, is considered as a more reasonable one.