Toshiba Energy Systems & Solutions Corporation

Kabushiki Kaisha Toshiba

Yasutaka Kawada

Yusuke Suzuki

Yoshinobu Makino

Yasuteru Kawai

Shota Nakajima

Kouhei Yamada

A welding method for subjecting a surface to be built-up of an elongated workpiece to a build-up welding process along a longitudinal direction of the workpiece, the welding method includes a step of forming a build-up layer on the surface to be built-up by supplying a filler metal to the surface to be built-up along the longitudinal direction and by applying a laser beam thereto to melt the filler metal. In the step of forming the build-up layer, information on a dimension of a molten pool formed by the filler metal and the workpiece molten by the laser beam is obtained, and an output of the laser beam is controlled based on the information.

Welding method and welded member

A blade damage evaluation apparatus includes: a registration unit for design information of a turbine and maintenance information; an acquisition processor for detection data of sensors; a first discrimination processor for first facility states of the turbine at a plurality of past time points; a classification processor for classes Cof a plurality of first facility states; a first determination processor for first operating state values of the turbine; another registration unit for first damage rates at past time points; a setting processor of a characteristic function for each of the classes C; a second discrimination processor for a second facility state of the turbine at the current time point; a second determination processor for a second operating state value of the turbine at the current time point; and an analyzer for a second damage rate at the current time point.

Blade damage evaluation apparatus, blade damage evaluation method, and blade damage evaluation program

Growing community of inventors

Kawasaki, Japan

Yasutaka Kawada