摘要
介绍脉冲MIG焊（熔化极惰性气体保护焊）熔滴过渡控制的发展现状,分析了现有控制法存在的局限性,阐述一种最新的控制法-熔滴过渡光谱控制法的原理、优越性及其进展。指出这方面的发展趋势。电弧光谱信号在反映脉冲MIG焊熔滴过渡方面有很大的优越性,其信号品质和灵敏度远胜过以往的信号。相应的光谱控制法己在实验室成功地实现了脉冲MIG焊1峰0基的精确控制,并可能推广用于2峰0基、3峰0基的控制,甚至推广用于连续电流焊条件下熔滴过渡的控制中,工艺适应性宽,前景广阔。
The current state of droplet transfer control methods in pulsed-MIG welding is introduced. The principle of the newest method-droplet transfer spectral control method and its advantage, development, and prospects are described. The spectral signal has many advantages in reflecting droplet transfer in pulsed-MIG welding. Its quality and sensitivity are far better than other signals used before. The droplet transfer spectral control method for the one-peak-zero-base (OPZB) in pulsed-MIG welding is realized. It will be spread to the droplet transfer control of two-peak-zero-base and three-peak-zero-base in pulsed-MIG welding. Even it can be spread to the droplet transfer control in continue current welding. Therefore, the new method has wide technology applicability and a prosperous future.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2002年第11期12-16,共5页
Journal of Mechanical Engineering
基金
国家自然科学基金资助项目(59975068)。
