铝合金L型件压缩变形行为研究
Investigation on Metal Flow Behavior in Compression of Aluminum Alloy L-Shaped Billets
徐明达1， 李 峰2， 张春磊3
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作者单位：1.齐齐哈尔高等师范专科学校 理工系，黑龙江 齐齐哈尔 161005； 2.哈尔滨理工大学 材料科学与工程学院，黑龙江 哈尔滨 150040； 3.中国人民解放军驻一二0军代表室，黑龙江 哈尔滨 150066
中文关键字： L型件；压缩；铝合金；数值模拟
英文关键字：L-shaped billet; compression; aluminum alloys; numerical simulation
中文摘要：通过对铝合金L型件的压缩过程进行数值模拟，分析了坯料形状对压缩过程中金属的变形行为的影响。结果表明，坯料的形状规格对压缩变形中的金属流动行为影响较大，随着高径比的增加，变形不均匀性增加，坯料出于塑性区的范围变大，坯料外凸变形趋势增大，坯料内孔（内边）压缩变形后的金属变形流动行为的复杂程度也随之增大，为更好地对7075铝合金的L型件压缩变形行为进行研究提供了理论依据。
英文摘要：The metal deformation behavior of 7075 aluminum alloy L-shape ring was investigated by numerical simulation, and the influence of billet shape on the plastic deformation was analyzed. The results show that the shape factors of billets have a great influence on metal flow behavior. With the increase of high-radius ratio, the uniformity of deformation increases; with the increase of deformed area and the deformed trend of bulge of billets, the complex degree of metal flow behavior increase, so that it provides a better scientific basis for compression deformation of the 7075 aluminum alloys L-shaped billets.