GRINDING WHEEL AND METHOD FOR REMOVAL OF SPRUES AND RISER PADS FROM CAST RAILCAR WHEELS

摘要

An abrasive material grinding wheel for grinding the plate front face of an as-cast railroadwheel to remove sprues and riser pads has a projecting and leading edge to extend the groundsurface into close proximity to a hub and fillet section of the railroad wheel, which grindingwheel has a reduced wall thickness, a recess for receiving a retaining flange to reduce theelements extending from the outer face of the grinding wheel, and a sloped outer grinding surfaceprojecting the leading edge and providing a grinding-wheel surface adequate to grind the entireriser pad from the plate front surface between the wheel rim and the front hub fillet, and togenerally retain the grinding wheel outer surface contour during multiple grinding operations.