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welding current
GATE Mechanical Engineering · Joining · 1992-2001
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All concepts →2001 PYQ
Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by
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1998 PYQ
The voltage-arc length characteristics of a $$DC$$ arc is given by $$V=20+4L.$$ Where $$L$$ is in $$mm$$. During a welding operation arc length is expected to vary between $$4$$ an...
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1992 PYQ
For resistance spot welding of $$1.5$$ $$mm$$ thick steel sheets, the current required is of the order
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