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-c ast railroad wheel to remove sprues and riser pads has a projecting and leading edge to exten d the ground surface into close proximity to a hub and fillet section of the railroad wheel, which grinding wheel has a reduced wall thickness, a recess for receiving a retaining flange to reduce the elements extending from the outer face of the grinding wheel, and a sloped outer grinding surface projecting the leading edge and providing a grinding-wheel surface adequate to g rind the entire riser pad from the plate front surface between the wheel rim and the front hub f illet, and to generally retain the grinding wheel outer surface contour during multiple grindi ng operations.