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首页> 外文期刊>Journal of Materials Engineering and Performance >On the Distortion and Warpage of 7249 Aluminum Alloy After Quenching and Machining
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On the Distortion and Warpage of 7249 Aluminum Alloy After Quenching and Machining

机译：7249铝合金淬火加工后的变形和翘曲

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摘要

The objective of this study is to determine the effect of solution treatment temperature, quenching media, and various machining sequences on the warpage behavior of aluminum 7249 alloy aged to T6 and T7′ tempers. Large extrusions of 7249 aluminum alloy with fins were cut into 108 “T” sections. The samples were solution-treated, aged, and machined. Three solution temperatures (445, 474, and 505 °C), two quenching media (water and 20% polyalkylene glycol), two aging treatments (T6 and T7′), and three machine sequences were used. The flatness of the samples was measured on the surfaces orthogonal to the z-axis. Three points were on top of both shoulders (six total), six were at the bottom of the sample, and six were on the top of the fin, in the cases where the fin was not milled off. They were then averaged together by surface to represent the overall warpage of each sample.
机译：这项研究的目的是确定固溶处理温度，淬火介质和各种加工顺序对时效为T6和T7'的7249铝合金的翘曲行为的影响。将7249铝合金的大型散热片与翅片切成108个“ T”形截面。样品经过固溶处理，时效处理和机加工。使用三种溶液温度（445、474和505°C），两种淬火介质（水和20％聚亚烷基二醇），两种时效处理（T6和T7'）以及三种机器顺序。在垂直于z轴的表面上测量样品的平面度。在未铣削鳍的情况下，两个肩部的顶上有3个点（总共6个），样品的底部有6个点，鳍的顶部有6个点。然后将它们按表面平均在一起，以代表每个样品的整体翘曲。

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