METHOD OF PRODUCED SMALL-WEIGHT BLADE FOR GAS TURBINE ENGINE Russian patent published in 2010 - IPC B23K15/00 B23K31/02 B23K37/04 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and can be sued for fabricating gas turbine engine blades. Blade body workpiece is machined to produce a part comprising body back with cavity and jointing groove along the edges of said cavity, and tail end. Blade pressure surface is produced with shape and sizes mating body back jointing groove. Blade pressure surface is fitted in said jointing groove to weld both together. Welded seam is treated thermally and blade is subjected to finishing. Blade workpiece has base elements arranged on tail end and back face that make base plane. Prior to machining, workpiece is fixed relative to basic plane. Machining, welding and finishing are effected with orientation along basic elements. Welding is performed by electronic beam in vacuum with minimum electronic beam power on the side of jointed parts that allows penetration of welding bath in jointing slot of not over 0.2 to 0.4 mm.

EFFECT: proposed blade allows ease of manufacture of smaller-weight gas turbine engine.

9 cl, 8 dwg