Unit for induction heating and hardening gear teeth

Details Unit for induction heating and hardening gear teeth Unit for induction heating and hardening gear teeth

1979-03-28

1981-02-17

Albritton, C. L.

Electric heating

Metal heating

Of cylinders

219 1079, 219 1043, 266125, 266129, 148147, H05B 614, H05B 640, C21D 110, C21D 932

Patent

active

042517044

ABSTRACT:
An induction heating unit is disclosed which is operable to inductively heat and harden teeth on circumferentially extending radially thin flange segments of a gear. The unit includes an inductor conforming in circumferential contour and length to the flange segment and having radially and axially offset conductor leg portions to control heating of the gear teeth during relative axial scanning movement between the gear and inductor so as to prevent distortion of the gear flange. The unit further includes an arrangement for quenching the gear teeth and cooling the end portions of the flange segment during scanning movements.

REFERENCES:
patent: 2164310 (1939-07-01), Denneen et al.
patent: 2167798 (1939-08-01), Denneen et al.
patent: 2797288 (1957-06-01), Kiemele et al.
patent: 3031555 (1962-04-01), Ross et al.
patent: 3185808 (1965-05-01), Sorensen et al.
patent: 3236993 (1966-02-01), Jones
patent: 3446495 (1969-05-01), Pfaffman et al.
patent: 3532333 (1970-10-01), Dehn
patent: 3777097 (1973-12-01), Budzinski

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