This photo shows the heating station of our automobile transafer shaft
and helical shaft induction annealing machine.

After the entire surface is hardened by carburizing,
only a section is annealed by induction.

The photo shows the workpiece after annealing.
The flange shaped section of the middle workpiece appears blue
after being heated.

While we at Fuji Denshi maintain induction hardening as one of
our specialties, we also specialize in annealing of parts hardened
by carburizing, machining, and welding.