Patent ID: 9700934
Date: 2017-07-11
CPC Classifications: B22C,B22D

Claim:
1. A casting assembly for making a cast steel railway wheel comprising: a ladle for holding a molten metal; a mold for receiving the molten metal from the ladle, the mold having a cope section and a drag section with a mold cavity defined therebetween shaped to form the railway wheel, the cope section having a first cavity face defining part of the mold cavity, the drag section having a second cavity face defining part of the mold cavity, at least one of the first and second cavity faces having a series of circumferentially positioned and alternating bosses and cavities that form corresponding ridges and voids on the surface of the railway wheel when cast, and wherein the mold cavity has a substantially constant thickness between the first and second cavity faces along the bosses when traveling radially outward along the bosses and wherein the mold cavity has a generally decreasing thickness between the first and second cavity faces along the cavities when travelling radially outward along the cavities.