Is this still a spray arc transfer?

By - Date 10-05-2000 09:40

Using .035 solid wire, 95% argon 5% oxygen, 50 cfh, about 28.5 Volts, and about 700 to 800 ipm. You get a good spray at around 600 ipm. What do you call the process if you run the wire speed up past the spray arc and you get a frying sound and spatter?

By jcrupert Date 10-09-2000 19:26

Have you increased the voltage as you were increasing the wirefeed speed? If you increase the wire feed speed and do not increase the voltage, you will get spatter. 700-800 ipm over 600 is a significant increase with no increase in voltage.

By - Date 10-09-2000 23:46

No the voltage was not increased. All other settings remain the same.

By DGXL

Date 10-11-2000 23:43

The process remains the same, the arc transfer mode has changed from spray to globular. The transition voltage must be increased to maintain a proper balance between the wire feed speed and arc voltage.