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|Title:||HYDROFORMING SHEET METAL INTO AXISYMMETRICAL SHELLS WITH DRAW-IN OF FLANGE PERMITTED.|
|Authors:||Shang, H.M. |
|Citation:||Shang, H.M.,Chau, F.S.,Tay, C.J.,Toh, S.L. (1985). HYDROFORMING SHEET METAL INTO AXISYMMETRICAL SHELLS WITH DRAW-IN OF FLANGE PERMITTED.. American Society of Mechanical Engineers (Paper) : -. ScholarBank@NUS Repository.|
|Abstract:||In this investigation, the clamped portion of copper test specimens is allowed to be drawn slightly into the die throat when hydroformed into axisymmetrical shells. Changing the blank holding load results in different draw-in characteristics. In general, the drawing-in action affects the shape of the shell and also lowers the severity of the deformation and surface area of the deformed shell. Although the nominal thickness uniformity of shells formed with draw-in permitted is improved, the actual thickness is less uniformly distributed. Experimental results also show that, at the beginning of the forming process, the infeeding material due to draw-in is unstretched; but as deformation progresses, stretching of the infeeding material becomes necessary for attaining higher polar heights.|
|Source Title:||American Society of Mechanical Engineers (Paper)|
|Appears in Collections:||Staff Publications|
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