4043 unless you need the joint to the 6061 part to be post-weld heat treated, then 4643. You know that the die casting is full of porosity, and the welds likely will be terrible, right?
Not to hijack the thread but, Cory have you had experience with vacuum die-casting making a substantial difference in the quality of welds?
Comprehension is not understanding. Understanding is not wisdom. And it is wisdom that gives us the ability to apply what we know, to our real world situations
