Pathfinder Atomic Power Plant. End Closure Development for Low Enrichment Superheater Fuel Rods

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Research on a welding process for closing the ends of pathfinder fuel elements is reported. Optimum parameters for certain variables (amperage, weld travel, preheat, etc.) affecting weld quality were determined, and two modified end cap designs were investigated and found to reduce weld sensitivity to certain variables. Use of chills on the fuel tube greatly improved weld puddie geometry and microstructure. Optimum weld parameters for rods containing UO/sub 2/ fuel were experimentally established. (D.C.W.)

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43 pages

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Boschke, R. A. & Wiggins, R. J. July 30, 1963.

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Research on a welding process for closing the ends of pathfinder fuel elements is reported. Optimum parameters for certain variables (amperage, weld travel, preheat, etc.) affecting weld quality were determined, and two modified end cap designs were investigated and found to reduce weld sensitivity to certain variables. Use of chills on the fuel tube greatly improved weld puddie geometry and microstructure. Optimum weld parameters for rods containing UO/sub 2/ fuel were experimentally established. (D.C.W.)

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43 pages

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  • July 30, 1963

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  • Oct. 18, 2017, 7:39 a.m.

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  • Dec. 16, 2025, 8:48 p.m.

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Boschke, R. A. & Wiggins, R. J. Pathfinder Atomic Power Plant. End Closure Development for Low Enrichment Superheater Fuel Rods, report, July 30, 1963; Milwaukee, Wisconsin. (https://digital.library.unt.edu/ark:/67531/metadc1030839/: accessed January 12, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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