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박지우(J. W. Park),김정(J. Kim),강범수(B. S. Kang) 한국소성가공학회 2013 한국소성가공학회 학술대회 논문집 Vol.2013 No.5
Flexible stretch forming is appropriate process for flexible manufacturing, so it can use aerospace, shipbuilding and architecture industry. Flexible stretch forming process has some advantages including that it could be applied to various shape forming such as double curved one. In this study, a numerical simulation was carried out for saddle type surface using the flexible stretch forming process. In this simulation, it can confirm the decrease effect of elastic recovery of stretch process. The experiment was also carried out to confirm the formability of this forming process. By comparing the simulation and experiment results, the suitability of the flexible stretch forming process for double curved surface was verified. Consequently, it was confirmed that the flexible stretch forming process has the capability and feasibility to manufacture the curved surface.
박지우(J. W. Park),서영호(Y. H. Seo),허성찬(S. C. Heo),송우진(W. J. Song),구태완(T. W. Ku),강범수(B. S. Kang) 한국소성가공학회 2011 한국소성가공학회 학술대회 논문집 Vol.2011 No.10
In recent years, an interest for atypical structures has been increased because of the culture which is emphasized on personality than uniformity. Flexible Forming Technology has no fixed types about punches and dies, so it is easy to do forming about various shapes of structures. In this paper, it chooses one model of atypical configuration and carries out the forming simulation by using the finite-element method about the chosen model. Finally, based on the result it compares the result of the last simulation model with the objective surface, and confirms its suitablity.