Induction Shrink Fit Aluminum Shaft

Induction Shrink Fit Aluminum Shaft with IGBT induction heating systems

Objective Heat aluminum impeller blades to 200 ºF (93 ºC) and shrink fit onto a shaft.
Material Aluminum impeller blades with a .28” (7.109mm) bore, aluminum shaft
Temperature 200 ºF (93 ºC)
Frequency 255 kHz
Equipment • DW-UHF-6W induction heating system, equipped with a remote workhead containing one 1.0μF capacitor.
• An induction heating coil designed and developed specifically for this application.
Process A split two turn helical coil is used to evenly heat the opening on the impeller blade. The impeller blade is heated for 20 seconds to reach the 200 ºF (93 ºC). The impeller blades are then removed from the coil & slipped over the shaft to complete the shrink fitting application.
Results/Benefits Induction heating provides:
• Repeatable results
• Reduced cycle time, lower consumables cost
• Even distribution of heating

Shrink Fit Aluminum

 

 

 

 

 

 

 

 
Shrink Fit Aluminum with induction

Inductioin Shrink Fitting Aluminum Pulley

Inductioin Shrink Fitting Aluminum Pulley With IGBT Heating Units

Objective Heat aluminum pulley for insertion of an inner bearing for the automotive industry
Material Aluminum pulley 2.3” (60mm) OD x 1.6” (40mm) ID x 1” (27mm) high and inner bearing 0.7” (17.8mm) high x 1.6” (40mm) dia
Temperature 464 ºF (240 ºC)
Frequency 283 kHz
Equipment • DW-UHF-4.5kW induction heating system, equipped with a remote workhead containing two 0.33μF capacitors for a total of 0.66μF
• An induction heating coil designed and developed specifically for this application.
Process A three turn helical coil is used to heat the aluminum pulley.
The pulley is heated to 464 ºF (240 ºC) in 20 seconds to expand the inner diameter and then the inner bearing is inserted to form the completed part.
Results/Benefits Induction heating provides:
• Defined and controlled heat pattern
• Process easily integrated into automated system
• Even distribution of heating

shrink fitting aluminum bearing