Method and repair insert for repairing mettalic structure

A rail repair method and insert therefor enables repair of rails and rail-like structures. A rail defect is initially identified and removed as contained within a volumetric material portion so as to form a contoured void while maintaining continuity of the rail opposite the void. A pre- formed inse...

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Bibliographic Details
Main Authors RICHARD F KRAL, DAVID P WORKMAN, SHANE A MAYHILL
Format Patent
LanguageEnglish
Published 26.12.2012
Subjects
COMBINED OPERATIONS
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FIXED CONSTRUCTIONS
MACHINE TOOLS
MACHINES FOR MAKING RAILWAYS OF ALL KINDS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OTHER WORKING OF METAL
PERFORMING OPERATIONS
PERMANENT WAY
PERMANENT-WAY TOOLS
TRANSPORTING
UNIVERSAL MACHINE TOOLS
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Summary:A rail repair method and insert therefor enables repair of rails and rail-like structures. A rail defect is initially identified and removed as contained within a volumetric material portion so as to form a contoured void while maintaining continuity of the rail opposite the void. A pre- formed insert is then placed into the void thereby effecting a rail-to-insert interface. Current is driven through the interface as force directs the insert against the rail. Resistance heat and pressure weld the insert to the rail. The flash welding aspects remove oxides and other impurities from the interface, and the forge welding aspects create a robust solid state weld. Excess material, whether flash, rail, or insert-based, is removed during the finishing processes to provide a virtually seamless rail repair. The solid state weld repair insert and underlying methodology enabled thereby may be used to repair any number of targeted metallic rail-like structures.
Bibliography:Application Number: GB20120016915