engleski

Effect of gating system design parameters on mold filling properties

Gating system should allow filling of the mould cavity, fast enough to prevent premature solidification of the melt, and yet slow enough to avoid inclusions in the casting. The shape, size and position of the gating system are critical process parameters for pouring of the melt into a mould cavity. For a given plate shaped casting, unpressurized gating system with a gating ratio 1:2:2 and 1:4:4 were modelled. Then the cross-sectional area of the bottom of the sprue was increased by seventy percent, while sections of runner and gates remained constant. For all four variants simulations were made in the simulation software QuikCAST. Wooden patterns of the gating system components were made and green sand moulds were produced. Alluminium alloy AlSi10Mg was casted. The results obtained by the simulation and experiments were compared.

aluminium alloys, gating system, casting simulation

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