| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for inexpensively manufacturing a high quality aluminum grindstone core having a high content ratio of silicon such as more than 20 wt.% and an efficient manufacturing method of a grindstone having a grindstone segment bonded to an outer periphery of the grindstone core. SOLUTION: In the manufacturing method of the substantially disk shaped grindstone core 1 used for the grindstone rotated on a rotating shaft of the grindstone, as a material of the grindstone core, aluminum (Al) including 20 wt.% or more (or 30 to 40 wt.%) of silicon (Si) is used to cast the grindstone core 1 by using a semi-solid die-casting method. When the grindstone core is cast by using the semi-solid die-casting method, a plurality of grooves M are formed on an outer peripheral surface of the grindstone core 1. The grooves M are filled with adhesive agent and the grindstone segment is bonded thereon to manufacture the grindstone. COPYRIGHT: (C)2011,JPO&INPIT |
