![]() “Proving this advanced application of TIP-TIG welding for the high tensile, low carbon steel used in the Collins Class submarine pressure hulls means we will achieve even higher quality and reliability in our future work on Australia’s fleet of Collins Class submarines,” Whiley said. ![]() The tests were conducted with the specimens held at a temperature significantly below zero degrees, simulating the most demanding under-sea conditions.Ĭareful examination of the weld showed that cracks did not grow or break through, successfully passing the test.ĪSC Chief Executive Officer Stuart Whiley said the successful explosive tests demonstrate ASC’s continued expertise in submarine hull fabrication and welding capability. The test specimen was repeatedly blown up until the “bulge” in the steel produced a thinning of the hull of a certain specified per cent. ![]() The tests involved a one square metre specimen of Collins Class hull steel, made up of two sections that had been welded together. To gain Commonwealth approval, ASC-welded test specimens of the hull steel had to pass repeated explosive bulge tests at a facility in Victoria. The newly approved TIP-TIG welding method is a more consistent and improved welding process and is expected to lead to increased efficiencies for submarine sustainment while retaining a safe environment for submarine crews. TIP-TIG welding for submarines ASC has successfully passed explosive tests for an advanced new welding technique for submarine hull steel in a development that opens the way to more efficient and reliable welds for Australian submarines.
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