PART FOUR: BI-METAL CASTING THE WHITE GOLD
The more I thought about the high polished white gold pieces fitting right up next to the textured yellow gold pieces, the more I was convinced that bi-metal casting was clearly the best way to go. I am so glad I did bi-metal castings 15 years ago in a workshop on gold alloys at Penland School.
Bi-metal casting can take twice as long and can create a bottleneck, so it is not done a lot. Contemplating, it was still clearly the winner.
I would cast the white gold first as its melting temperature was higher.
I would put a high polish on the white gold pieces and then fit them tightly against the waxes for the yellow gold pieces. The molten yellow gold would cast right up next to the polished white gold- a perfect fit!
Journal Entry Winter 2014
“I know there will still be some hurdles, some I have a hint and some I do not, and that some of my concerns will just flow smoothly. Actually I have a good feeling about this just all coming together, with vigilance…
So I am backing off when tired, and will hit it fresh in the morning. I just have to load the flask in the kiln and wait patiently, yeah like patience is a word that belongs there, well to wait for the gold to get here tomorrow, and cast.”