| 摘要 |
<p>Provided are a method of manufacturing a brazed rotor composed of a wheel (101a) and a shaft (101b) joined to the former by brazing, having a durability and a reliability which can be enhanced without increasing the manufacturing manhours, and a turbine rotor (101) for an exhaust turbosupercharger. The wheel (101a) having a disc portion (101d) formed at its outer periphery with blades (101c), and a rod-like shaft (101b) are arranged in a furnace (110), being opposed to each other at their surfaces to be joined with a brazing solder (102) being interposed therebetween, and infrared radiation (W) is irradiated onto a side part of the wheel (101a) so as to heat the surfaces to be joined up to a temperature in a range from 1,000 to 1,080 degree Celsius in order to melt the brazing solder, the wheel and the shaft being thereby joined to each other by brazing at their surfaces to be joined.
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