Connecting metallic structural elements such as turbine blade and turbine blade head of gas turbine, comprises inserting filling material or mass into cavity of the elements, and then connecting by inductive high-frequency pressure welding

摘要

The process for connecting metallic structural elements (12, 14) such as turbine blade and turbine blade head for a component of a gas turbine, comprises inserting or filling a preformed filling material (18) or a filling mass into a cavity (16) of the elements, connecting corresponding connecting surfaces (20, 22) of the elements by inductive high-frequency pressure welding, and mechanically removing the filling material or the filling mass by ultrasonic or chemical. The material of the filling material or the filling mass is temperature stable for the period of connection of the elements. The process for connecting metallic structural elements (12, 14) such as turbine blade and turbine blade head for a component of a gas turbine, comprises inserting or filling a preformed filling material (18) or a filling mass into a cavity (16) of the elements, connecting corresponding connecting surfaces (20, 22) of the elements by inductive high-frequency pressure welding, and mechanically removing the filling material or the filling mass by ultrasonic or chemical. The material of the filling material or the filling mass is temperature stable for the period of connection of the elements. The filling material or the filling mass projects over the connecting surface of the first or second element. The connecting surfaces of the respective element are beveled before the connecting process. The filling material or the filling mass consists of ceramic, glass, metal, a metal alloy or polystyrene. An independent claim is included for a filling material or filling mass useful for connecting metallic elements.