(Optional) Create a weld for various metals.

Creating welds should be done for metals such as steel and aluminum and should

• meet American Welding Society (AWS) standards of quality and safety
• have the correct bead in relation to heat, wire, speed, and hand movement
• reflect adherence to safety precautions and best practices in the use of SMAW (stick), GMAW (wire), and TIG welders.

Process/Skill Questions:

• What is the purpose of the setting(s) on the front of a welder? When should settings be changed?
• What is the difference between MIG and TIG welding?
• Why is it better to use a spool gun instead of a regular MIG machine when welding aluminum?
• Why should a person wear a welding hood when looking at an arc from the welder?
• What type of wire/rod is used with MIG welding? Why?
• Which of the following terms—seam, joint, bead—is used to describe the weld produced during welding? To what do the other two terms refer?