How do you use a tube expander like the one pictured below? Do you just stick it in and away you go, or do you need to heat the copper first?
Flowerpot wrote:How would these go expanding stainless pipe?
scythe wrote:You will need to keep the stainless red hot while you are expanding it.
It will "re-harden" when it cools.
A press will be a better idea i think, using a strong back is too much like hard work.
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