| 摘要 |
A manufacturing method of socket for car transmission and accelerator comprising the step cutting a green rod(1) in constant length and then forming it into the first processed member(1a) using the first punch(2) and the lower mold(3), the step forming it into the second processed member(1b) using the second punch(2a) and the lower mold(3a), the step forming it(1b) into the third processed member(1c) using the third punch(2b) and the lower mold(3b), the step forming it(1c) into the forth processed member(1d) using the forth punch(2c) and the lower mold(3c), and finally the step forming it(1d) into half-finished member(1e) using the fifth punch(2d) and the lower mold(3d) is disclosed. Thereby, it is possible to massproduce, to save manufacturing time and manhour, and then to reduce costs.
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