Consolidated Casting Corporation facilitated a major cost reduction of a critical part through use of it’s investment casting capabilities.
The combustor assembly is a critical part of the microturbine power generator for the Parallon 75. The original component consisted of 16 individual machined tabs that were electron beam-welded in 64 places onto a fabricated tube.
With turnkey responsibility for the complete combustor assembly, Consolidated Casting Corporation produced the tabs as a single ring casting which becomes two finished rings when split in a secondary machining operation.
Each finished ring component is butt-welded into a 0.080 in. wall sheet metal tube, as opposed to the individually welded tabs of the original design.
The foundry also assembles the complete combustor assembly, which includes five investment castings, sheet metal tubes, a machined pin, stampings, tubes and fittings.
The change in design reduced the sub-assembly time by 26 minutes and achieved a greater than 50% per-part cost reduction.