Breadcrumb Home Welding Technology WLDG 1428 WLDG 1428: Intro to Shielded Metal Arc Welding (SMAW) Download as PDF Class Program Welding Technology Credits 4 Lecture Hours 3 Lab Hours 2 CIP 48.0508 An introduction to the shielded metal arc welding process. Emphasis is placed on power sources, electrode selection, and various joint designs.