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Abstract：
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With the help of the finit element analysis software DEFORM-3D,the singl-layer drawing,the double-layer drawing and the packed-layer drawing technology on drawing of FVS0812 aluminum alloy semi-spheroid under the conditions of warming were analyzed.The result shows that the critical Damage value is 0.24 when the workpiece fractures.In the single-layer drawing technology,the stress distributed difference is big and the strain distribution is not uniform;The double-drawing technology to improve the workpiece's stress situation and the strain distribution in the certain degree has a good effect.The packed drawing technology causes the workpiece's strain and stress distribution condition to have a very big change,enables the workpiece's strain distribution to be uniform.Compared with the result of experiments,the predicted Damage area is in accordance with the experimental results.
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Funds：
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国家科技部创新基金立项项目(07C26214301749);;
湖南省自然科学基金项目(07JJ5067)
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AuthorIntro：
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Reference：
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