engineering recuitment GATE ME 2023-24 Test Series Production Engineering (Manufacturing) Metal Casting Design of Gating System
A top gating system has to be designed to fill a mold of dimensions 60 cm × 40 cm × 20 cm. The sprue length is 160 mm, diameter at the top end is 30 mm and the molten metal in the pouring cup has to be maintained at 40mm. To avoid aspiration,
1
The diameter at the bottom end of sprue is 10 mm
2
The filling time for the mold is 77 sec
3
The velocity at the bottom of sprue is 1.98 m/s
4
The diameter at the bottom end of sprue is 20 mm