Note: Hardening teeth on a steel motorcycle gear
Objective:
Hardening teeth on a steel motorcycle gear to a hardness of 48- 55 HRC
End Product:
Steel motorcycle gear
Equipment:
Ambrell 90 kW induction heating system, equipped with a remote workhead containing eight 1.0 μF capacitors for a total of 8 μF An induction heating coil designed and developed specifically for this application.
Materials:
Carbon steel gear 6.9 in (175mm) diameter
Temperature:
2000 °F ( 1093 °C)
Frequency:
78 kHz
Testing:
A single turn helical coil is used to heat the gear. The gear is placed on a spindle and rotated at 300-350 RPM in s. Heat is applied for 10 seconds to reach the desired hardness. The gear is immediately quenched to remove the heat, dried and then coated with a lubricant.
Benefits:
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Easy control of depth of hardness
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Energy savings due to efficiency of process
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Hands-free heating that involves no operator skill for manufacturing
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Even distribution of heating
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