Note: Preheating a brass assembly for forging blanks
Objective:
Preheat two brass parts to 1652 °F (900 °C) for a forging application in the wrist watch industry -- a key objective was to heat at a faster rate than their current induction heating system
End Product:
Brass assembly
Equipment:
Ambrell EKOHEAT 30 kW, 50-150 kHz induction heating system, equipped with a remote workhead containing four 1.5 μF capacitors A double position three-turn pancake style coil with one helical turn
Materials:
A brass assembly consisting of two components with an outside diameter of 2 in (51 mm)
Temperature:
1652 °F (900 °C)
Frequency:
120 kHz
Testing:
Initial tests were conducted to optimize the power delivered to the assembly. The assembly was placed 1 mm above the coil. The entire assembly was heated to 1652 °F (900 °C) in 16 seconds. Heat was generated in the bottom of the part, and heat was conducted to the entire assembly within 16 seconds.
Benefits:
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Speed: The client was using a competitor"s system, and it as heating the assembly at a slower rate. They needed to increase their production rate, which this solution was able to achieve.
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Service: The client was not receiving satisfactory support for their induction heating system, so they were looking to switch to a superior system that was built to their specifications and included the support they needed.
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