Developments in Pressure Diecasting

Street, Arthur

doi:10.1179/imr.1975.20.1.121

Cited by 3 publications

(1 citation statement)

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“…Surface finish of thin-walled casting is still a poorly researched area, but it is commonly agreed that the die or mould conditions and the casting conditions determine surface finish [3]. A common practice is that foundries increase the injection speed at the second stage, as many defects are seen are cold flow related and increasing the speed reduces temperature drop during filling and also improve homogeneity due to turbulence flow [4]. This strategy is particular successful for Mg-alloys as they have low density and thus also low heat content, making them susceptible to heat loss and premature solidification.…”

Section: Introductionmentioning

confidence: 99%

Influence of Process Parameters on Surface Appearance and Roughness of a Low Si Containing Al-Alloy, in Semisolid Casting

Jarfors

Rigovacca

Payandeh

et al. 2014

SSP

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The visual appearance and surface roughness were experimentally investigated in industrial scale for a low silicon containing aluminium alloy cast in semisolid state integrated with HPDC machine. A visual comparative technique and surface roughness in the form of the Rq value were used to evaluate the surface appearance and the surface roughness respectively. The results were investigated statistically to find significant models. It was shown that high quality appearance, following a comparative scale, was possible using high die temperature and high injection speed. It was also found that improving the surface roughness will deteriorate the visual appearance.

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Section: Introductionmentioning

confidence: 99%