resmelt
/ˈrɛzmɛlt/Definitions
1. verb
to melt (metal, etc.) again, especially after it has been solidified
“The old industrial plant began to resmelt the scrap metal for reuse in the factory’s production line.”
2. noun
the act of melting (metal, etc.) again
“The resmelt process was crucial to the new smelting technique that saved millions of dollars in production costs.”