Welding Development Program: Resistance projection welding of Zircaloy-2 to natural uranium and resistance series seam welding of Zircaloy-2 to Zircaloy-2 to Zircaloy-2

摘要

Discussions presented in this report result from product development activity conducted for the Hanford Atomic Products Operation of General Electric Company, Richland, Washington, by the Research Division, Sciaky Bros., Inc. Program objective, discussion of development effort, and test results are presented with a summary of final weld schedule, conclusions and recommendations. The objective of the development effort was to define the optimum projection weld area configuration and the weld schedule to consistently resistance projection weld join a machined Zircaloy (minus)2 end closure (ring with projection/s) to the exposed (depressed) surface of a natural uranium tube clad (or contained within a double wall) Zircaloy (minus)2 tube assembly and to further process said assemblies by series seam welding the outer Zircaloy (minus)2 clad wall to the Zircaloy (minus)2 end closure simultaneously with the weld joining of the Zircaloy (minus)2 end clad to the inner Zircaloy (minus)2 clad wall.