Abstract: The method to detect droplet transfer by means of arc spectrum,
while the experiment sets, testing principle and data processing
procedure, are presented. The experiment and analysis results
show that arc spectrum signal can be utilized to detect and
measure the transfer procedure, the transfer modes and the
transfer parameters. The arc spectrum signal enjoys excellent
quality with high signal amplitude. Each transfer mode has its
specific typical signal mode, and the pulse outline corresponds
to an integrated transferring procedure of one droplet. All
these features of arc spectrum signal can be easily applied in
the control of transfer procedure, the identification and
stabilization of transfer mode and the measurement of transfer
parameters.
Key words: MIG
welding Arc spectrum Signal feature Droplet transfer Detection
*
The project is
supported by National Natural Science Foundation of China (No.59575059).
Manuscript received on August 7, 2000; revised manuscript December
10, 2000
|