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