Induction Heating fan blades for welding

Objective To uniformly heat jet engine turbine fan blades to 1800°F (982.2ºC) within five minutes for a welding application
Material Jet engine turbine fan blades with 2”(50.8mm) length tip
Temperature 1800°F (982.2ºC)
Frequency 216 kHz
Equipment • Power of 6kW induction heating system equipped with a remote workhead.
• An induction heating coil designed and developed specifically for this application.
Process A four-turn helical coil with a kidney shape is used to provide uniform heat for this application. The turbine blade is placed inside the coil and power is applied for 5 minutes until the top
0.25” (6.35mm) of the blade reaches 1800°F (982.2ºC). An optical pyrometer is used to measure the temperature of the
part.
Results/Benefits Induction heating provides:
• Even and consistent distribution of heat
• Faster production rate
• Reduces product waste through rapid heat-up and cool down cycles

Heating fan blades for welding