COMPONENT WITH INTERNAL UNDERSTANDING VOLTAGES, PROCEDURE FOR THE DEVELOPMENT AND DEVICE FOR THE ELABORATION OF INTERNAL UNDERSTANDING VOLTAGES.

摘要

Turbine blade (120, 130, 342, 354), which has a curved surface area (4) in the form of spruce in a fixing area (16) or foot of the blade (43), the surface area (4) consisting of at least one concavely curved area (7, 11) and at least one convexly curved area (10, 12), mutually adjacent, characterized in that the concavely curved area (7, 11) has internal compression stresses ( sigmaE) different from zero by means of ball blasting, because the convexly curved zone (10, 12) presents internal compression stresses (sigmaE) different from zero by ball blasting, because the concavely curved area (7, 11 ) has higher internal compression stresses (sigmaE) than the convexly curved area (10, 12), because the concavely curved area (7, 11) has a radius of curvature (R) at the minimum (7 '' ) and because the concavely curved area (7, 11) has at least a width (81) of three to five times the radius of curvature (R), and because the entire surface area (4) has internal compression stresses (sigmaE).