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Influence of Taguchi-Grey Relational Analysis of Gating System Design on Mechanical Properties of Casting

Ingle P. D., Narkhede B. E.

Archives of Foundry Engineering

2019

iss. 3

72--77

Throughout the casting process, mold filling plays a very significant role in the casting quality control. It is important to study the effect of gating system design on ingate velocity of the metal which affects the mechanical properties of casting. The effect of varying the design of four gating system elements namely pouring cup, sprue height, runner and ingate design on the multiple responses like tensile strength and percentage elongation is studied using a Taguchi’s L9 OA. The Taguchi technique was coupled with a Grey Relational Analysis (GRA) to obtain a Grey Relational Grade (GRG) for evaluating multiple responses. ANOVA has been applied to identify the significance of different parameters and it was found that the pouring cup design and the runner cross-section along its length collectively contributed above 76% of the total GRG value. Finally, the confirmation tests were performed to validate the predicted optimized results and it established an improvement of 9.90% from the initial design.

Gating system for in-mold technology

Pokusová M., Murgaš M.

Archiwum Odlewnictwa

2006

R. 6, nr 18/2

21--26

The reaction chamber’s shape is designed so to provide the homogeneous supply of the active elements from the master alloy at the different position of the casting towards the parting plane depending on the master alloy’s melting speed, its granulometry and the melt’s temperature. On the section including sprue–reaction chamber–slag skimmer the gating system is designed as the pressurized one with the control cross-section on the slag skimmer output.

Kształt komory reakcji technologii In-mold dla żeliwa sferoidalnego jest zaprojektowany tak aby zabezpieczyć jednorodną podaż aktywnych elementów stopowych w różnych położeniach odlewu do płaszczyzny podziału zależnie od prędkości topnienia stopu, jego ziarnistości i temperatury topnienia.