METHOD OF BEAM WELDING OF AN IMPELLER WITH PERFORMANCE OF TWO PASSES ON A SLOT; IMPELLER AND TURBO MACHINE HAVING SUCH WELD CONFIGURATION

摘要

The method according to these exemplary embodiments provides welding techniques for impeller blades (60) associated with impellers in centrifugal compressors. According to one exemplary embodiment, a connection area of the impeller blade (60) has a "hammer" - shaped cross - sectional area (70) which facilitates beam welding of the connection area to a slot in the surface or body to which the blade (60) is to be connected.