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http://dx.doi.org/10.5228/KSPP.2005.14.9.798

Optimization of a Hot Forging Process Using Six Sigma Scheme and Computer Simulation Technology Considering Required Metal Flow tines  

Moon H. K. (FAG베어링코리아(유) 연구소)
Moon S. C. (FAG베어링코리아(유) 연구소)
Eom J. G. (경상대학교 대학원 기계공학과)
Joun M. S. (경상대학교 기계항공공학부)
Publication Information
Transactions of Materials Processing / v.14, no.9, 2005 , pp. 798-803 More about this Journal
Abstract
In this paper, the six sigma scheme together with the rigid-viscoplastic finite element method is employed to obtain the optimal metal flow lines of a hot forging according to the six sigma processes, i.e., five steps such as define, measure, analyze, improve and control. Each step is investigated in detail to meet customer's requirements through improvement of product quality. A forging simulator is used for analysis of the metal flow lines of the hot forging, manufactured by a hot press forging machine, under various conditions of major factors determined at each step. The analyzed results are examined in order to reveal the effects of major factors on the metal flow lines and the formed shapes. The effects are then used to find an optimal process and the optimal process with die is devised and tested. The comparison between the required metal flow lines and the experiments shows that the approach is effective for optimal process design in hot forging considering metal flow lines.
Keywords
Hot Forging; Six Sigma Scheme; Computer Simulation; Process Design; Metal Flow Lines; Double Angular Ball Bearing with flange;
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