CO_2焊接过程的高速摄影与电信号分析  

Study on CO_2 welding process based on high-speed photography and electronic signals analysis

作　　者：张丽玲[1] 彭祺[2] 张莉琴[3] 

机构地区：[1]南昌工程学院机械与动力工程系,江西南昌330099 [2]江西工业职业技术学院,江西南昌330099 [3]江西科技师范学院通信与电子学院,江西南昌330013

出　　处：《电焊机》2008年第3期30-33,共4页Electric Welding Machine

摘　　要：焊接过程的复杂性和微观熔滴过渡过程的随机性,使得对弧焊电源及其焊接过程的分析和评定成为一个难以有效解决的课题。而高速摄影技术是一种先进的图像采集技术,作为能够记录高速过程的一种手段,常用于熔滴过渡等过程的研究。利用自行研制的电信号、高速摄影图像采集处理系统对焊接过程中熔滴过渡过程进行分析,利用小波分析仪采集焊接过程中的电压、电流信号并进行滤波处理,而高速摄影仪采集的焊接图像可以对熔滴过渡过程进行细微研究。通过对比分析两者,为改进熔滴过渡过程提供了数据上的支持。For the complexity of welding process and the randomicity of droplet transfer,the analysis and estimate at arc welding power and its welding process becomes a problem which is difficult to resolve efficiently.As an advanced image-acquired technique,high- speed photography is a general measure of memorizing high-speed process.In this paper,our electronic signals and high-speed photography processing system was used to analyze droplet transfer process：wavelet-analysis instrument was used to obtain and filter the voltage and current signals in welding process.High-speed photography instrument was used to acquire welding image.Through comparing and analyzing the processing result ,we could provide data support to improve droplet transfer process.

关 键 词：高速摄影 熔滴过渡 CO2焊 

分 类 号：TG409[金属学及工艺—焊接] V430[航空宇航科学与技术—航空宇航推进理论与工程]