4.2. Welding

Try these first

1. 1.

   What must be done to aluminum before welding?

   Hint

   Think about the natural properties of aluminum.

2. 2.

   Name one welding technique used for aluminum.

   Hint

   Consider the common methods from our discussion.

3. 3.

   What is the primary reason for removing the oxide layer when welding aluminum?

   • To enhance appearance
   • To ensure proper fusion
   • To reduce costs

   Hint

   Think about the properties of aluminum.

4. 4.

   True or False: MIG welding is slower than TIG welding.

   • True
   • False

   Hint

   Consider the characteristics of both welding methods.

5. 5.

   Imagine you're tasked to weld aluminum components for a bridge. What specific steps will you take to ensure weld quality, considering issues like porosity and hot cracking?

   Hint

   Think through the entire process from preparation to execution.

6. 6.

   Consider a scenario where a welder encounters a significant amount of porosity in the finished weld. What factors might you troubleshoot to improve the situation?

   Hint

   Review what aspects could contribute to quality welds.