This research work aimed to investigate the effect of shape factor, slurry layers and pouring temperature in precision investment casting. Three controllable factors of the precision investment casting process (namely: shape factor, slurry layers (mould thickness) and pouring temperature) were studied at three levels each by Taguchi's parametric approach and single-response optimization was conducted to identify the main factors controlling surface hardness, dimensional accuracy ( d) and surface roughness (Ra). Castings were produced using aluminium, mild steel and stainless steel at...

The purpose of the present study is to experimentally investigate and optimize the mould fabrication process, based on vacuum casting for plastic component. Starting from the identification of component, prototype with three different types of material were prepared under three different conditions of temperature, time and mixing ratio. Measurements on the coordinate measuring machine helped in calculating the dimensional tolerances of the plastic components produced. Further relation between hardness, dimensional accuracy and surface roughness in vacuum casting and other controllable...

The present research work is aimed at the development of spherical disc of ball valve as a cast study for investment casting applications. Three controllable factors of the investment casting process (namely: volume/surface-area (V/A) ratio of components, slurry layers combination and type of metal) were studied at three levels each by Taguchis parametric approach and single-response optimization was conducted to identify the main factors controlling surface hardness, dimensional accuracy and surface finish. Castings were produced using Aluminium, Mild steel and Stainless steel at recommended...