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Precision forging of spur gears with inside relief |
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| Authors: | J. C. Choi Y. Choi |
| Affiliation: | a School of Mechanical Engineering, ERC for NSDM, Pusan National University, Kumjumg-gu, Pusan, South Korea;b Department of Mechanical Design Engineering, Graduate School, Pusan National University, Kumjumg-gu, Pusan, South Korea |
| Abstract: | Conventional closed-die forgings as applied to the forging of spur gears require high forging pressure. In this paper, a precision forging technology has been developed for the forging of spur gears with alloy steel (SCM415). The technology developed includes two steps in the forging process. Well-shaped products are forged successfully using a lower forging pressure than that of conventional forging. The accuracy of the forged spur gear obtained by the new precision forging technology is set nearly equal to that of a cut spur gear of the fourth and the fifth classes in the Korean industrial standard. |
| Keywords: | precision forging forging of spur gear alloy steel (SCM415) accuracy of forged spur gear |
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