What?

Regular and advanced heat treatment process;

Hardness measurements on different kind of heat treated alluminium welds

Why?

Investigate precipitation mechanisms of Heat treated aluminium alloys in more detail

Investigate further influence of previous heat treratments on welding & PWHT

How?

Previous research investigation, DOE planning, sample preparation, experimental testing

Lessons learned

it appears that initially different structure can exert similar mechanical properties, with potential energy savings and less sensitivity on subsequent welding or PWHT processes