| 摘要 |
PURPOSE: To precisely cut and remove a thin disk from ingot or a rod made of a hard and brittle material by forming a metal ring into a rolled starting ring and by developing the starting ring into a thin band loop by cold rolling. CONSTITUTION: A seamless metal ring is prepared and the metal ring is remade into a rolled starting ring 4. Secondly, the starting ring 4 is developed into a thin band loop 5 by cold rolling using a rolling machine composed of work rolls 7a, 7b, auxiliary rolls 8a, 8b, and a support roll 9. According to circumstances, the band loop 5 is divided into narrow band loops or wire loops. The band loop or the wire loop is covered with a cutting film. The band loop and the wire loop manufactured in this way are used as cutting tools is a band saw and a wire saw.
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