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heating

PROCESSES


Annealing

Bonding

Brazing

Forging

Fusing

Hardening

Heat Staking

Heat Setting

Pre-Tinning

Susceptor Heating

Pre-Heating for Welding


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Heating an Inconel Susceptor for a Jet Engine Fan Blade

Research Objective

To heat an inconnel susceptor used to heat jet engine fan blades to 1950°F in less than 1 minute. Improved temperature uniformity across the blades will be achieved by using this indirect heating method in an atmosphere of argon.

Parts & Materials Description

Inconnel susceptor, 1 3/8” wide, 2” long, 3/4” thick.

Temperature Required

1950°F

Induction Heating Equipment

Protective atmosphere heating system, 3kW induction heating power supply, specially designed induction coil.

Operating Frequency

215 kHz

Heating Procedure

A specially-designed seven-turn helical induction coil was used to provide optimal heating efficiency. Initial tests were conducted to establish a heating profile and determine time to temperature. RF power was applied for 45 seconds to bring the inconnel susceptor to 1950°. An even heating pattern was observed throughout the inconnel block.

Conclusion

Successful, even heating was achieved by heating the inconnel susceptor with the 5 kW power supply in a protective atmosphere.

the susceptor rests inside the inductor

Heating an inconel susceptor