Method for producing cooling insert for stator blades in gas turbines involves shaping outwardly curved and inwardly curved walls from single plate which is then bent about rear edge and welded along leading edge

摘要

The method involves making the outwardly curved wall (2) and inwardly curved wall (3) by shaping a single plate (10) and then bending same about the rear edge (5) so that the join between the two walls requires a single welding seam (7) along the leading edge (4) of the hollow body (1) which follows the bending process. Independent claim describes cooling insert made with an outwardly curved wall and inwardly curved wall made from a single plate which is shaped and bent around the rear edge and welded only along the leading edge.