Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 7 Issue 1
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- Pages.64-72
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- 1983
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- 1225-5963(pISSN)
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A Study on the Pure Stretch Forming Of Al Sheet
알루미늄薄板 의 Stretch Forming 에 관한 硏究
Abstract
A method of numerical analysis is proposed for the pure stretch forming of A1 sheet by hemi-spherical punch. The analysis is performed by Woo's general method under the condition of variable friction and plastic yielding is based on the new anisotropic yield function proposed by Hill. A comparison of the calculated results with experiment shows good agreement for various lubrication when the initial values of the coefficient of coulomb friction at pole are less than 0.4.
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