Used Robots.com: Motoman XRC Arc Welding

Created: 99-02-16 Revised: 99-08-18 Operator's manual MOTOMAN XRC Page: 87 MOTOMAN ROBOTICS EUROPE Concave bead:
Part of the fillet weld has a
dented bead surface. It can
be seen in a downward
weld at a vertical position or
incline position Welding current is too high
Arc voltage is too high
Welding speed is too slow Lower the welding speed.
Adjust the voltage appropriatel y. Meandering of beads:
State in which welding
bead is shaped like a
snake. The welding wire is bent
and twisted.
The welding chip’s hole
diameter is growing larger.
Magnetic blow influences
welding. Shorten the wire length.
Use a pail.
Exchange old tips for new tips.
Change earthing condition.
Change welding direction. Welding defect Reason for occurrence Correction method Concave bead


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