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http://dx.doi.org/10.5228/KSPP.2005.14.2.126

Process Design of Isothermal Forging for Three-Dimensional Ti-6Al-4V Wing-Shape  

Yeom J. T. (한국기계연구원 공정연구부)
Park N. K. (한국기계연구원 공정연구부)
Lee Y. H. (포항공과대학교 신소재공학과)
Shin T. J. (포항공과대학교 기계공학과)
Hong S. S. (국방과학연구소 기술연구본부)
Shim I. O. (국방과학연구소 기술연구본부)
Hwang S. M. (포항공과대학교 기계공학과)
Lee C. S. (포항공과대학교 신소재공학과)
Publication Information
Transactions of Materials Processing / v.14, no.2, 2005 , pp. 126-132 More about this Journal
Abstract
The isothermal forging design of a Ti-6Al-4V wing shape was performed by 3D FE simulation. The design focuses on near-net shape forming by the single stage. The process variables such as the die design, pre-form shape and size, ram speed and forging temperature were investigated. The main design priorities were to minimize forging loads and to distribute strain uniformly in a given forging condition. The FE simulation results for the final process design were compared with the isothermal forging tests. The instability of deformation was evaluated using a processing map based on the dynamic materials model(DMM), including flow stability criteria. Finally, a modified process design for producing a uniform Ti-6Al-4V wing product without forming defects was suggested.
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Times Cited By KSCI : 2  (Citation Analysis)
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