Revised 8/26

WEL 235 - Advanced Gas Metal Arc Welding (GMAW) (3 CR.)

Course Description

Continues the study of Gas Metal Arc Welding (GMAW), wire feed welding, Metal Inert Gas (MIG) using spray transfer, pulsed GMAW, short circuit transfer, and flux cored wire on various metals and joint designs. Focuses on developing GMAW skills with practice and instruction in these advanced processes.Lecture 1 hour, Laboratory 6 hours, Total 7 hours per week.

General Course Purpose

The purpose of this class is to allow students practice time and instruction to develop their welding skills to a level that will prepare them for an AWS fillet weld certification test which will make them more employable.

Course Prerequisites/Corequisites

None.

Course Objectives

Upon completion of the course the student will be able to:

• explain the purpose and use of material control and fabrication control under the major codes
• understand the weldability of specific alloys
• examine changes in microstructure produced by the process
• identify defects, probability, prevention, and testing

Major Topics to Be Included

• Basic types of metals and respective codes governing welding
• Elements, compounds, and mixtures of metals
• Thermal effects upon the microstructure and physical characteristics of metals
• Weldability and procedure for welding of quench and tempered steels
• Heat treatment of welded metals