Tend flame-hardening machines.
What does a Flame Hardening Machine Operator do?
Tends flame-hardening machine, according to set procedures, to case-harden metal objects: Positions and fastens part in fixture, on arbor, or between centers of machine. Presses buttons on control panel to light burners that direct flame against part and start automatic feeding or spinning mechanism. Observes machine operation and removes finished part. May anneal metal cartridge or shell cases and be designated Flame-Annealing-Machine Operator.