－
27
－
9. WELDING PREPARATION
(Continued)
9.4 Welding Conditions
When setting to the improper welding conditions, the following troubles will occur.
Cause
Trouble
Wire extension is too long.
･
Long Arc length
･
Wide bead width
･
Poor shield
･
current increase Note 1
Wire extension is too short.
･
Short arc length
･
Easy generation of spatter
･
current decrease
Note 1
Welding voltage is too high.
･
Long arc length
･
Wide bead width
･
Shallow penetration and flat bead
Welding voltage is too low.
･
Stick to base metal and easy generation of spatter
･
Narrow bead width
･
Deep penetration and high excess metal
Welding current is too high.
･
Wide bead width
･
Deep penetration and high excess metal
Welding speed is too fast.
･
Narrow bead width
･
Shallow penetration and low excess metal
The data in the tables below is only for reference. Please find the optimum welding conditions for
weldment shape and welding position.
Note 1: the function of depth of fusion F13 can improve the difference between set current and actual
current.
Wminfo
