METHOD FOR WELDING ROTORS FOR POWER GENERATING UNIT

摘要

PROBLEM TO BE SOLVED: To provide a method for welding rotors for a power generating unit, which method eliminates disadvantages of the prior art methods and substantially reduces the manufacturing time and cost.SOLUTION: A weld seam preparation machining step includes preparing an optimized transition geometry of a TIG welding gap to an SAW welding gap transition with a first opening 28 having a first opening angle and a second opening 29 having a second opening angle greater than the first opening angle.