Breadcrumb Home WLDG Welding WLDG-1434 WLDG-1434: Introduction to Gas Tungsten Arc Welding (GTAW) Download Catalog PDF Download Page PDF Program WLDG Welding Lecture Hours 3 Lab Hours 3 Credit Hours 4 Course Type N Principles of gas tungsten arc welding (GTAW), including setup of GTAW equipment. Instruction in various positions on joint designs. Prerequisites WLDG-1323, WLDG-1428.