1) I will use an electric kiln; is 1,500F the right firing
temperature for those alloys?
I’m not an expert, but I have tried to make the laminated stock for
producing this stuff… with mixed results.
The temperature to fire it at should be a bit less than the lowest
melting point of the metals involved. The point where the metal
starts to sweat is right.
It really helps if you pick metals that have similar melting points.
For instance, do not try to laminate pure silver and palladium white
2) Is there an optimal stacking order for those copper alloys,
i.e., are there alloys that should or not be in contact with each
others? Or does it not matter?
The problem you will encounter with the copper alloys is that the
oxygen in the furnace will react with them. If they oxidize, they
will not fuse. You have to pack the vise you’re using to compress
them with a lot of charcoal, and try to make some kind of airtight
casing around it.
The rest I don’t know. :-).
For myself, I was able to adequately fuse 24kt gold with fine
silver, and the fine silver with 18kt green gold.
I had poor results trying to fuse palladium white gold (very hard,
and high melting point), to anything, and 14kt pink gold (high copper
content) I found also to be difficult. Both of these layers
delaminated when I tried to work the stack.
This was just an experiment, and I did not go all out packing with
carbon and such.