Patent ID: 9700935
Date: 2017-07-11
CPC Classifications: B22D

Claim:
1. A manufacturing method of a casting comprising: drawing out molten metal upwardly from a bath surface of a molten metal bath to form a body of drawn molten metal and solidifying the drawn molten metal to provide a casting, arranging an outer contour unit configured from a plurality of outer contour defining members for defining an outer contour of the casting in a region between the bath surface of the molten metal bath and a solid region where the drawn molten metal is solidified, wherein in the step of drawing out the molten metal, the molten metal is drawn out from the bath surface through a region determined by the outer contour unit, and changing the outer contour of the casting by moving at least one of the plurality of outer contour defining members according to the drawing out of the molten metal.