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http://dx.doi.org/10.5228/KSPP.2005.14.7.642

Process Control and Thixoforming of Cu Rotor for High Efficiency Motors  

Jung, W. S. (창원대학교 재료공학과)
Lee, S. Y. (안동대학교 신소재공학부)
Shin, P. W. (창원대학교 재료공학과)
Publication Information
Transactions of Materials Processing / v.14, no.7, 2005 , pp. 642-648 More about this Journal
Abstract
Rotor in small-medium induction motor has been usually manufactured by aluminum diecasting. In order to improve the efficiency of induction motors, newly developed Cu-Ca alloys have been investigated. The electrical conductivity in the Cu alloys containing Ca less than $1.0wt\%$ was higher than $80\%$ IACS. Cu-Ca alloy is desirable for the thixoforming process because it has wide semi-solid range over $150^{\circ}C$. In this study, Cu-rotor with thixoforming process was developed to replace the conventional aluminum diecasting rotor. Analysis was performed for the microstructure of thixoforming rotor. Effect of incomplete filling on the efficiency of induction motor was discussed.
Keywords
Cu Rotor; Thixoforming; Semi-solid Metal Forming; High Conductivity Copper Alloy; SIMA Process; Cu-Ca Alloy;
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Times Cited By KSCI : 1  (Citation Analysis)
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