Aluminum Q&A

Q: I have some questions relating to aluminum weldment performance:

1. I was informed that you should not weld on annealed aluminum base metals. Is this true and, if so, why?

2. Can I use thermal stress relief on aluminum welded components?

3. What are the typical tensile properties of aluminum welds at various temperatures?

A: I will answer your questions in order:

1. It is possible to produce sound welds on annealed non-heat-treatable aluminum alloys..