| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for forging a bevel gear in which the forging accuracy of the gear is improved, and a forging process of a die is shortened. SOLUTION: A die face shape of the forging die is acquired based on the three-dimensional coordinate values of the bevel gear (P1), and a die stock 20 is directly milled by a small diameter ball end mill (P2). The die face is measured (P3) to correct the errors, and the tooth flank shape of the gear which is forged (P7) by the forging die and heat-treated (P8) is measured (P9), and the errors are fed back to the die forging (P10). Thus, the die for forging the bevel gear of high accuracy can be manufactured in a short time.
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