Unit 1: Basic of Knowledge in Technology Welding -- Unit 2: Techniques of Safe and Controlling Welding -- Unit 3: Practices in Occupational Health, Safety Procedures and Hazards -- Unit 4: Welding Machine Installation and Control: Uses of Welding Current and Voltage -- Unit 5: Use of Weld Alloy Steel Plates in Welding -- Unit 6: Prepare and Modeling in Weld Materials -- Unit 7: Welding Equipment: Tools and Techniques.
"Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding, is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece metal(s), which heats the workpiece metal(s), causing them to melt and join."--Back cover