کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9796396 1514946 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deep cup forming by superplastic punch stretching of friction stir processed 7075 Al alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Deep cup forming by superplastic punch stretching of friction stir processed 7075 Al alloy
چکیده انگلیسی
Multiple overlapping passes of friction stir processing (FSP) were used to cover 80 mm wide region for punch stretching of 7075 Al alloy plate. The forming experiments were performed at 723 K. While a maximum depth of 52 mm (depth/punch diameter ∼ 2.7) could be achieved by punch stretching at a slow strain rate of 10−3 s−1, the maximum depth obtained at a higher strain rate of 10−2 s−1 was 40.4 mm. However, tolerable variations in thickness can be maintained up to a depth of 18.5 mm which is nearly equal to the punch diameter. FEM simulation closely predicts the load and thickness variation till the point of initiation of cavities and instabilities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 395, Issues 1–2, 25 March 2005, Pages 173-179
نویسندگان
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