AWS PHB-4

GMAW portion includes shielding gas information for spray arc transfer, shortcircuiting arc transfer, globular to spray transition currents, arc voltages, wirefeed speed, melting rates, and typical welding conditions for carbon and lowalloy steels, stainless steels, and aluminum. FCAW portion includes specification and classification system for FCAW electrodes, and same topics as GMAW portion for CO2 and selfshielding. Covers troubleshooting advice for mechanical and electrical GMAW and FCAW.