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What are reason for poor spot welding?
Rusty/unclean surface grease on metal and thickness and heat setting all poss answers
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What are the reasons for burr generation in spot welding?
Poor tip preparation, and poor alignment of electrodes, excessive current and hold time will all contribute to burrs,
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What is spot welding?
Spot Welding is a process where two pieces of overlapping metal are welded by applying an electric current through two contact points. The interface of the parts creates current resistance which...
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Is spot welding is fusion welding?
Yes, no filler metal is used. Often used on thin metals, the metals are pressed together and electricity is used to heat the metals to a state they melt slightly and fuse together.
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Why spot welding known as resistance welding?
Spot welding is known as resistance welding because the the two pieces of metal melt together at the point of highest resistance to current flow, basically when the electricity flows through the...