Can anyone offer tips on hammering a 24K gold coin into a foil that
is less than 1.0mm thick? I need suggestions on: how to avoid
excessive contamination; what work surface and hammer is best for
this; when to anneal; and how to avoid hammering a hole in the
sheet.
The motivation is to gain experience working with gold, and to not
have to spend $1350 on a sputter target.