Re your problem with white gold. Sounds to me that you are doing all
the right things: ari cooling, annealing, slow passes, etc. so there
shouldn’t be any problems.
What comes to my mind is that you are working with an unknown alloy in
the original band which is probably a commercial casting alloy that
contains nickel. It is the nickel that makes white gold behave badly,
the brittleness and stiffness etc. Then you combine that with the
palladium white from H&S which theoretically should improve
malleability and other working characteristics. Theoretically. But
what may be happening is that the two alloys are interacting in a
strange way due to something that a only metallurgist would know
You can call Tory at Hoover and ask him what he thinks. He may
transfer you to the metals expert there. Those people are very
helpful in that regard, so don’t be bashful.
Even when you know the cause, you are still going to be stuck with the
problem, I would guess. I would talk to the client and explain the
dilemma and then try to persuade the client to use new metal. I
usually decline to use materials provided by the client for just this
reason. If they insist, I would agree only on condition that they
accept the risks from the unknowns.
Let us know how you came out.
Ricco Gallery of Contemporary Art Jewelry
125 W German St /PO Box 883
Shepherdstown, WV 25443-0883