br wrote:
Hello all,
I've been a lost-wax caster for over thirty years, and I never really
learned to use a rolling mill. I never even bought one, because I could
always figure out how to get along without it. I have several questions for
you bench experts concerning rolling gold wire. For an upcoming line, I need
long bands of 18K yellow gold to then have disks punched out, 1/10th. of a
millimetre thick and 8mm in diameter. How many operations/reductions am I
looking at to roll down a 1.2mm wire to a 0.1mm x 10mm ribbon? Is this too
thin to be done reasonably? Could I do this, with good repeatability
(thickness-wise I'd like to stay between 0.09mm and 0.11mm), using an off
the shelf rolling mill? Do standard mills have well polished rollers, and
will I have a problem getting an easy polish on the ribbon after the final
reduction? I'm hoping to need about 10 meters a year, lets say 1000 pieces.
What are the do's and don'ts for doing these myself? Perhaps I'd be better
off getting them made? I have kilns and temp. control for annealing. That's
no problem. I'd appreciate any and all ideas, comments, etc. B.RANDALL
http://www.srdfrance.com



JUst an update for you.
Ive checked out Via the Swiss chamber of commerce if my paillion
supplier, Bayeler&co. Geneva are there and still in business.
I!st contact with them was in 1969, last in 1978.
Yes!! they are!!
So im writing to them today to ask if they would like to quote to supply
you with 1000 1/10mm by 8mmdia 18 ct gold discs.
as soon as I have a reply ill mail the group.
It would help if you mentioned what you plan to do with them.
I need to contact them again anyway, as I need some more of their
paillions myself. Fancy doing some enamelling again.
It will be interesting to see what they will want in terms of cost,
delivery times and business payment details.
Probably half the cost up front.
well see.
Ted.