Material saving method for truing track wheels
AssigneeWilhelm Hegenscheidt GmbH
InventorHerbert Feldewert
Life of this patent
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Abstract
Track wheels, especially railroad wheels, are trued in a material saving manner by first displacing material from zones of lesser wear to zones of higher wear on the wheel tread and/or on the wheel flange including the flank area of the flange, especially that part of the flank merging the flange into the tread zone. The location of the new or restored tread is then determined and a material removing operation such as milling or turning is performed. The material displacing may be performed by a rolling or forging operation prior to the milling or turning operation.
Claims9
A method for making a restored track wheel by restoring a worn track wheel having a worn peripheral profile with a tread section and with a flange section, so that the restored track wheel will have a restored peripheral profile, comprising the following steps:
- ascertaining on said worn peripheral profile first worn zones of lesser wear, ascertaining on said worn profile second worn zones of higher wear, subjecting only said first zones of lesser wear to a material displacing deformation for forcing material out of said first zones into said second zones for forming a partially restored profile, determining on said partially restored profile locations requiring a material removal by a truing operation for producing said restored profile, and performing a material removing truing operation on said determined locations for obtaining said restored profile, whereby the quantity of material to be removed by said truing operation is minimized.
Dependencies are inferred from the claim text.