Induction Shrink Fit Aluminum Shaft with IGBT induction heating systems
Objective Heat aluminum impeller blades to 200 ĀŗF (93 ĀŗC) and shrink fitĀ onto a shaft.
Material Aluminum impeller blades with a .28ā (7.109mm) bore,Ā aluminum shaft
Temperature 200 ĀŗF (93 ĀŗC)
Frequency 255 kHz
Equipment ā¢ DW-UHF-6W induction heating system, equipped with aĀ remote workhead containing one 1.0Ī¼F capacitor.
ā¢ An induction heating coil designed and developedĀ specifically for this application.
Process A split two turn helical coil is used to evenly heat the openingĀ on the impeller blade. The impeller blade is heated for 20Ā seconds to reach the 200 ĀŗF (93 ĀŗC). The impeller blades areĀ then removed from the coil & slipped over the shaft toĀ complete the shrink fitting application.
Results/Benefits Induction heating provides:
ā¢ Repeatable results
ā¢ Reduced cycle time, lower consumables cost
ā¢ Even distribution of heating
