With some
newer metals, including coated and high strength low alloy (HSLA) steel
and aluminum, the control of welding parameters over a narrower range
has become more important.
Parts with
several welds may exhibit current shunting from earlier welds.
Distance
of the weld to the sheet edge can also have a major effect on weld quality.
Advanced
weld monitoring techniques - not just measurement - can help.
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