Induction hardening system and method
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United States of America Patent
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Apr 25, 2017
Grant Date -
Sep 19, 2013
app pub date -
Apr 26, 2013
filing date -
Apr 9, 2010
priority date (Note) -
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Abstract
A system and method of induction heat treating a gear includes a workstation. The workstation has a power source, an inductor coil, and a rotational mechanism. The gear is induction heat treated at a first portion of the gear and a second portion of the gear remains untreated by induction hardening. The gear has an inner surface. The inner surface includes the first portion and the second portion. The first portion has a first width. The second portion has a second width. The inductor coil includes at least one heating loop and at least one non-heating loop. The inductor coil is energized to a predetermined frequency to create an alternating magnetic field, where the alternating magnetic field developed in the heating loop induces an eddy current in the first portion of the gear.
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