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http://dx.doi.org/10.5228/KSTP.2012.21.3.195

Development of a Housing Component for an Auto-compressor Using Vacuum Ladling Die Casting  

Lee, H.S. (한라대학교 기계자동차공학부)
Park, J.S. (깁스코리아다이캐스팅(유))
Publication Information
Transactions of Materials Processing / v.21, no.3, 2012 , pp. 195-201 More about this Journal
Abstract
A vacuum ladling die casting system is suggested as a means to obtain a high vacuum level. A high vacuum of 17.8 mmHg is obtained by sealing the inner space of the mould. The sample product is a rear-head housing for an auto-compressor, and the die-casting with 6-cavities was conducted. The flow analysis shows that the filling speed during vacuum ladling is faster than for a non-vacuum system. The air holes in the sample product were too small to be seen with the naked eye in X-ray films. Density tests show that the high vacuum ladling system reduces the internal porosity as much as 57.8% when compared to the non-vacuum system. A defective rate of only 0.17% was found from leak testing. The results of this research prove that the high vacuum die-casting process is useful for manufacturing of aluminium components under high internal pressure.
Keywords
Vacuum Ladling; Compressor Housing; High Vacuum; Die Casting; Aluminium;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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