A burring processing method including increasing a diameter of a prepared hole provided in a metal component and bending a part of the metal component to form a burring processed portion (110) including an upright portion (120) and a curved portion (130), ...

There is provided a stabilizer bar in which through holes are not positionally offset even if the attachment portions are bent after the through holes are formed therein. A stabilizer bar is composed of a steel pipe material bent to an approximate U-shape ...

A novel method of manufacturing a turbine frame for rotatably holding adjustable blades in a VGS turbocharger is provided, which method is capable of manufacturing the turbine frame while almost eliminating a time-consuming cutting operation, whereby mass ...