| 摘要 |
A universal joint part (26) is an integral member with a hub (28) and trunnions (30) extending from the hub. The integral member is cold- formed to provide a grain flow path in the trunnions parallel to the trunnion outside surface adapted to engage the rollers (34) of a bearing. A metal blank (58) is placed in a bore (54) of a die (50) (52) which has cavities (56) shaped so that the cold- formed integral universal joint part will have the desired configuration. Pressure is then applied against the metal blank using rams (60) (62) to extrude metal into the die cavities to form a cold-formed, integral universal joint part. <IMAGE> |
