| 摘要 |
PROBLEM TO BE SOLVED: To efficiently produce a finishing formed article and further, lower the cost, in a forging formation. SOLUTION: A third forging apparatus 24 is provided with a lower die 60 and an upper die 64 arranged on a fixed base 40 and a punch 90 arranged on a movable base 42, and injecting nozzles 94a and 94b are arranged between the fixed base 40 and the movable base 42. The injecting nozzles 94a and 94b is supplied with lubricating oil stored in an oil tank. The lubricating oil is finally sprayed toward the punch 90 and the lubricating oil is coated on the punch 90. When the lubricating oil is concentrated, such degree that the punch 90 is not wet in the visual observation, the lubricating oil is again sprayed and the lubricating oil is again coated on the punch 90. This re-coating may be performed at one or more times, and the coating and the re-coating is performed before reaching the second formed article 38 to the third forging apparatus 24. COPYRIGHT: (C)2007,JPO&INPIT
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