Patent ID: 6616408
Filing Date: 2003-09-09
Classification: B23K,B23P,F01D,F05D,Y10T

Abstract:
A method for joining blade parts of a gas turbine, comprising the steps of:providing a blade-body section having at least one end joining area and at least one further blade part having an end joining area; positioning the end joining areas of the blade-body section and the further blade part substantially in alignment with and at a distance from one another; arranging an inductor around a circumference of the end joining areas of the blade-body section and the further blade part so that the inductor is disposed at a greater distance from the end joining area in a region of a blade leading edge and a blade trailing edge than in a center region of the blade; and welding the blade-body section and the further blade part to one another by energizing the inductor and by bringing the blade-body section and the further blade part together with a low force and with the end joining areas touching one another, inductor being energized with a high-frequency current at a frequency in a range of 0.75 MHz and 1.2 MHz.