FORFARANDE FOR FRAMSTELLNING AV ETT DELAT HOLJE FOR EN GASTURBINMOTOR

摘要

The split case is formed from a cylinder 10 in whose outer surface at least two axially extending grooves 14 are cut. A pair of mating elements 16, 18 are placed in each slot and are respectively welded to the adjoining parts of the cylinder. The inner diameter of the cylinder is turned to at least the inner edge of the mating elements so that the cylinder separates into at least two portions. The cylinder may be formed with circumferentially extending ribs 12 and/or rails and the mating elements may be machined to form matching ribs and/ or rails, the interfaces being electron welded.