Arc Welding With Constant Current

The power source is the heart of all arc welding processes. Two basic types of power sources are expressed by their voltage-ampere output characteristics. The constant current machine is considered in this paragraph. The other power source, the constant voltage machine, is discussed in paragraph 10-3. The static output characteristic curve produced by both sources is … Read more

Carbon Arc Welding (CAW)

Carbon arc welding is a process in which the joining of metals is produced by heating with an arc between a carbon electrode and the work. No shielding is used. Pressure and/or filler metal may or may not be used. Carbon Arc Welding Equipment Electrodes. Carbon arc welding electrodes range in size from 1/8 to 7/8 … Read more