We are pleased to announce that the USDOE has accepted Holtec’s proposal to advance and commercialize a cutting-edge technology known as hybrid laser arc welding for use in nuclear structures and systems. Our own SMR-160 small modular reactor program will be a principal beneficiary of the fruits of this R&D program. We anticipate that this advancement will help improve the quality of welds in the entire range of critical service components, from thick-walled reactor vessels to thin-walled multi-purpose canisters. Brian Farnsworth, Holtec’s principal subject matter expert and noted innovator of welding and non-destructive examination technologies, stated, “this project will allow us to investigate and develop very low weld heat input techniques coupled with grain size control (refinement), mechanical properties optimization, high joint fill rates utilizing narrow gap, and very close control of weld heat-affected zone size.” (more…)
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