Set up and attach a work clamp (i.e., ground), and adjust the GMAW welder to tune for proper electrode stickout, voltage, polarity, flow rate, and wire-feed speed required for the substrate being welded.

Procedures should include

• determining the correct welder type, electrode, wire type, diameter, and gas to be used in a specific welding situation
• setting up welding equipment
• adjusting for proper electrode stick-out, voltage, polarity, flow rate, and wire-feed speed required for the material being welded
• determining the work clamp (e.g., ground) location
• attaching the work clamp
• following OE and product manufacturer guidelines and recommendations.

Process/Skill Questions:

• What is the line pressure for shielding when welding steel?
• When increasing amperage, what else needs to be increased? Why?
• What is the proper angle of the gun to the metal?