电焊机2011，Vol.41Issue(6)：18-21,82,5.
VPPA焊接的焊缝成形稳定性控制的研究现状
Review on weld formation stability control in variable polarity plasma arc welding
何丽君 1林三宝 2李金全2
作者信息
- 1. 机械科学研究院哈尔滨焊接研究所,黑龙江哈尔滨150080
- 2. 哈尔滨工业大学先进焊接与连接国家重点实验室,黑龙江哈尔滨150001
- 折叠
摘要
Abstract
The greatest advantage of the variable polarity plasma arc (VPPA)welding is that the characteristic parameters can be adjusted flexibly,such as the current frecluency,eurrent amplitude and time comparison in both the positive and negative half. For this reason,the cathode cleaning action can be realized and the keyhole welding can be achieved at the same time during the welding of aluminum alloys.Therefore,the VPPA welding has been widely utilized in the welding of aluminum structures in the aerospace industry. In this paper,the stares of control methods of the weld formation stability at home and abroad is introduced. There are three main control methods:open-loop control mode through presetting parameters,closed-loop control mode based on the real-time detection and feedback control mode based on the multi-information fusion.关键词
变极性等离子孤焊/焊缝成形稳定性/焊缝成形控制Key words
variable polarity plasma arc welding(VPPAW)/stability of weld formation/control of weld formation分类
矿业与冶金引用本文复制引用
何丽君,林三宝,李金全..VPPA焊接的焊缝成形稳定性控制的研究现状[J].电焊机,2011,41(6):18-21,82,5.
