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http://dx.doi.org/10.7315/CADCAM.2012.188

Multi Point Press Stretch Forming System Applied to Curved Hull Plate of Aluminum Ship  

Bae, Chul-Nam (Dept. of Naval Architecture and Ocean Engineering, Inha Univ.)
Hwang, Se-Yun (Dept. of Naval Architecture and Ocean Engineering, Inha Univ.)
Lee, Jang-Hyun (Dept. of Naval Architecture and Ocean Engineering, Inha Univ.)
Jeong, Uh-Cheul (Dept. of Naval Architecture and Ocean Engineering, Inha Technical College)
Kim, Kwang-Ho (Research and Development Center, Steel Flower Co. Ltd.)
Publication Information
Korean Journal of Computational Design and Engineering / v.17, no.3, 2012 , pp. 188-197 More about this Journal
Abstract
Recently, aluminum ships are constructed more than ever because of the environmental pollution generated by FRP (Fiber Reinforced Plastic) ships. In particular, FRP ships have been replaced by the Aluminum ships. The forming process of the curved aluminum plate has been performed only by labor works without systematic technique. Therefore, it is difficult to construct the aluminum ship that the design satisfies both required propulsion performance and hull design. Present study introduces a MPSF (Multi Point Stretching Forming) that is a flexible manufacturing technique to form large sheet panels of doubly curvature. The hull pieces are stretch-formed over the MPSD (multi-point stretching die) generated by the punch element matrix. In this study, MPSF is applied to deform the doubly curved surfaces of aluminum ship. The forming system including FEA (finite element analysis) of the processes for stretching the plate were carried out by static implicit analysis is suggested. Residual deformation of the surface is modeled by an elasto-plastic contact phenomena while the forming process is simulated by FEA. Finally, the proposed system is also validated, comparing the deformed shape by MPSF with that of object surfaces.
Keywords
Aluminum forming; Elasto-plastic analysis; Mechanical forming system; Multi point press stretch forming;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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