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|Title:||Sheet Forming and Porging Of Zn-Al alloys|
|Authors:||Porster, Allam James|
|Keywords:||Management Sciences and Quantitative Methods;Operations Research, Systems Engineering and Industrial Engineering;Management Sciences and Quantitative Methods|
|Abstract:||<p>A brief introduction to superplasticity is presented.</p> <p>The forming of superplastic sheet into a rectangular trough is examined and the thickness distribution theoretically determined. Figures, dependent on the height to width ratio of the trough, are presented of the thickness variation against a suitable geometric parameter.</p> <p>Experiments have been performed on the forming of superplastic Zn-Al into a flat bottomed cylindrical cavity. A semi-empirical analysis based on the theoretical work of Cornfield and Johnson is presented and the theoretical and experimental thickness distributions compared.</p> <p>The closed die forging of superplastic and conventional Zn-Al eutectoid alloys is examined. The results of experiments are presented and a two phase forging cycle, suitable for rate dependent materials, is presented.</p>|
|Appears in Collections:||Open Access Dissertations and Theses|
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