Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 15 Issue 2
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- Pages.81-89
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- 1998
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
A Study on the Forging of Spur Gears with Internal Serrations
내부세레이션홈을 갖는 스퍼어 기어의 단조에 관한 연구
Abstract
Numerical calculation tools for forging of gear-like components based on kinematically admissible velocity fields for upper bound method applicable to various deformation features of workpiece in forging processes were suggested. Each one of them deals with unidirectional flow of metal on dies, such as external involute spur gear. square spline, internal serrations. A complex calculation tool of gear-like component forging process was built up by combining these kinematically velocity fields. In this paper the workpiece with 110th external and internal teeth is divided into two parts. The deformation of each part is analyzed simultaneously using numerical calculation tool from combined kinematically admissible velocity field. The experimental set-up was installed in a 200 ton hydraulic press. As a result, each kinematically admissible velocity field could be combined with others and the calculated solution are useful to predict the capacity of forging equipment.
Keywords