Prepare the metal to be welded.

Preparation should include

• cleaning the metal
• assuring good metal fit-up
• applying weld-through primer, as required
• fitting, aligning, and clamping or tacking, as required
• following OE and product manufacturer guidelines and recommendations.

Process/Skill Questions:

• How is aluminum prepared for welding?
• What can be added to steel to prepare it for welding?
• What can one use to check the temperature of aluminum while welding?
• What is the melting point of mild (i.e., low-carbon) steel?