I think quill stems are cast, now I know welding cast iron is very tricky long winded process involving hours of preheating and cooling, aluminum is harder to weld in general than steel so I am presuming that welding cast aluminum will be even tougher to (and hence more expensive) to weld.
I think quill stems are cast, now I know welding cast iron is very tricky long winded process involving hours of preheating and cooling, aluminum is harder to weld in general than steel so I am presuming that welding cast aluminum will be even tougher to (and hence more expensive) to weld.