| 摘要 |
PROBLEM TO BE SOLVED: To improve the strength of the root portion of a trunnion journal by efficiently reducing or removing a forging parting line. SOLUTION: A method for manufacturing a tripod includes a reduction or complete removal by barreling of the forging parting line P of the tripod, which is then treated by cutting, heat treatment, grinding, etc. COPYRIGHT: (C)2007,JPO&INPIT
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