Breadcrumb Home WLDG Welding WLDG-1430 WLDG-1430: Introduction to Gas Metal Arc Welding (GMAW) Download Catalog PDF Download Page PDF Program WLDG Welding Lecture Hours 3 Lab Hours 3 Credit Hours 4 Course Type N Principles of gas metal arc welding (GMAW), setup and use of GMAW equipment, and safe use of tools and equipment. Instruction in various joint designs. Prerequisites WLDG-1323, WLDG-1428.