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US 9,434,019 B2Granted
Re-manufacture and apparatus of worn railroad freight car and locomotive wheels by rotational continuous longitudinal welding
AssigneeCSX Transportation, Inc.
InventorRodney L. Keefe
Life of this patent
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Abstract
A method for re-manufacturing a worn railroad car wheel is described herein. The method includes identifying a candidate wheel or wheel set, preparing the wheel or wheel set to receive new welding, performing a welding operation on the wheel/wheel set, and performing post-welding steps to ensure the re-manufactured wheel meets a defined profile standard. Preparing the wheel may include cleaning, grinding, and pre-heating one or more surfaces of the wheel.
Claims12
A method for restoring a worn metal wheel for a railcar or locomotive, comprising:
- identifying a worn wheel to be restored, including inspecting the worn wheel to determine service life remaining of the worn wheel;
- preparing the worn wheel to receive a welding material, including at least one of cleaning the worn wheel, lathing the worn wheel, grinding the worn wheel, and heating the worn wheel;
- engaging a welding unit and depositing the welding material onto the worn wheel;
- disengaging the welding unit upon determining that dimensions of the worn wheel have reached a predefined value;
- and
- performing a post-welding process to shape the worn wheel to a defined profile, wherein the post-welding process comprises:
- applying heat to the worn wheel;
- quenching the worn wheel;
- and
- performing one or more of lathing the worn wheel and grinding the worn wheel to shape the worn wheel.
7 more elements
A method for restoring a worn metal wheel for a railcar or locomotive, comprising:
- identifying a worn wheel to be restored;
- preparing the worn wheel to receive a welding material;
- engaging a welding unit and depositing the welding material onto the worn wheel;
- disengaging the welding unit upon determining that dimensions of the worn wheel have reached a predefined value;
- and
- performing a post-welding process to shape the worn wheel to a defined profile, wherein the post-welding process comprises:
- applying heat to the worn wheel;
- quenching the worn wheel;
- and
- performing one or more of a lathing and a grinding operation on a surface of the worn wheel to shape the worn wheel to a desired profile.
7 more elements
Dependencies are inferred from the claim text.