Note: Preheating titanium rods for forging turbine blades
Objective:
To heat titanium rod blanks prior to forging into a turbine blade
End Product:
Titanium turbine blade
Equipment:
Ambrell EKOHEAT 20 kW, 50-150 kHz solid state induction heating power supply with a workhead and coil specifically designed for this application.
Materials:
Titanium rod 0.591" (15 mm) OD by 11.8" (300 mm) long
Temperature:
2,030 °F (1,110 °C)
Frequency:
164 kHz
Testing:
Through extensive laboratory work in THE LAB at Ambrell, the EKOHEAT 20 kW output solid state induction power supply, an optical pyrometer, 4-20 mA input, and a 19-turn helical coil were found to achieve the following results:
- A temperature of 2030 ºF (1,110 °C) was reached in 25 seconds with a 3 ºF (-16.1 °C) overshoot and stabilized at ± 2 ºF (-16.7 °C).
- A time to temperature of 15 seconds could be achieved with this setup if run at full power
Benefits:
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Speed: Induction’s rapid heating allowed the client to reduce their cycle time and increase throughput.
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Consistency/Repeatability: The client can expect the same result time after time with induction.
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Efficiency: Induction is an energy efficient medium of heating, so it enabled the client to not only save time, but money too.
Visit our Applications Lab to learn more about free applications testing.
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