| 摘要 |
Cams for mounting on a shaft are manufactured by assembling a stack of dies 10 with frangible members 12 interposed therebetween, each of the dies 10 defining cam-shaped cavities 24 and the frangible members 12 defining restricted orifices 32 inter-connecting the adjacent cavities 24. The cavities 24 are filled with molten metal through the orifices 32. After the metal has solidified, and removal of the dies 10, the frangible members 12 are broken away and the cams are separated by breaking through the sprues defined by the orifices 32. <IMAGE> |
