"CalifBill" wrote in message
...




I would guess a spin (friction) weld on the cookware.


I think so ... a "cladding" process.

I know of several specialty products that bond normally incompatible
materials but the process is unique and certainly not welding.

One thing I enjoyed about the technology I was involved in was some of the
weird materials and alloys that could be produced in high vacuum deposition
systems. A process known as "sputtering" involves knocking off molecules
of a source material with energetic ions formed in a plasma and depositing
them onto an object or substrate to be coated.
Using two or more different "sources" at the same time allowed the
co-deposition of completely incompatible materials resulting in a really
strange alloy.

The original "Silverstone" cookware was produced in this manner.

Eisboch