Abstract
In machining using abrasive grains, the heat generated at the cutting point affects deterioration of the work material, grain wear, etc. The influence of heat on the magnetic domain structure is investigated when an amorphous metal that has excellent magnetic properties is machined with abrasive grains. At a cutting speed of 51 m/min, the tool temperature is 220°C and it does not affect the properties of the amorphous metal because the temperature is below the Curie temperature of 643 K (370°C). At a cutting speed of 512 m/min, the tool temperature is 580°C and it markedly affects the magnetic domain structure of the amorphous metal because the temperature above that of crystallization (753 K, 480°C).
