Spot Welding

Spot welding is a process in which contacting metal surfaces are joined by the heat obtained from resistance to electric current flow.  Workpieces are held together under pressure exerted by electrodes.

Process Characteristics

Requires no filler metal or fluxes
Can achieve high speed production
Is easily automated
Does not require skilled operators
Is used primarily on sheet metal
Uses nonconsumable, low resistance, copper alloy electrodes

BACK

Information provided is from Manufacturing Processes Reference Guide by Robert H. Todd, Dell K. Allen, and Leo Alting.--1st ed. Published by Industrial Press Inc., 1994.