Abstract
The effects of gating system design on the tensile strength properties of cast Al-Mg-Si alloy component were studied, with gating sprue diameters of 10 mm and 12 mm respectively for pressurized and non-pressurized systems. A match plate pattern was made for channels and mould cavity preparation, while the pouring temperature is at 6800C maintained as the optimum temperature. The variation with respect to increasing ingate of 1 to 3 was observed, the resulting castings from the gating system were compared for tensile strength using instron tensile test machine. The non-pressurized system with reduced turbulence and increasing cross sectional area towards the mould cavity, had finally increased the tensile strength. The result shows that 2-ingate pressurized gating system with 10 mm sprue diameter designed type has improved tensile strength. While the non-pressurized system with reduced turbulence and increasing cross sectional area towards the mould cavity, had finally increase the tensile strength.
Highlights
1 Introduction Gating system is the assembly of channels which facilitates the molten metal to enter into the mould cavity [1,2,3]
There’re two types of gating systems depending on the choke area: nonpressurised and pressurized [4]
There is no pressure existing in the metal flow system and it helps to reduce turbulence, a typical gating ratio is 1:4:4
Summary
Gating system is the assembly of channels which facilitates the molten metal to enter into the mould cavity [1,2,3]. This research investigate the effects of designed gating systems components such as varied sprue diameters of 10 mm and 12 mm with increased in-gate number of 1 to 3 on the tensile properties
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