| 摘要 |
PURPOSE:To decrease the machining allowance of a cylinder regardless of the inside size of a claw and to improve the productivity of a product by disposing a cylinder part molding die to a rotor width part molding die and housing the former into the cavity part of the latter after casting, then taking out the product. CONSTITUTION:The cylinder part molding die c' having a core handle (g) corresponding to the inside size (d) of the claw is disposed to the rotor width part molding die b' of a disk brake caliber body (a) and the titled product (a) is cast. The core handle (g) is pulled after casting and is housed into the cavity part (f) of the rotor width part molding die, then the product (a) is taken out. The machining allowance of the cylinder part is decreased to the adequate allowance regardless of the inside size (d) of the claw, by which the finish machining is made more efficient and the productivity of the product is improved.
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