صورة الغلاف المحلية
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Determination of parameters to manipulate the evenness of perforated sheets with non-circular contours of holes / Ahmed Awadallah Ahmed Elsayed Mowafy ; Supervised Nahed Elmahallawy , Rainer Hank , Alexander Tatarczyk
نوع المادة :
نصاللغة: eng تفاصيل النشر: Cairo : Ahmed Awadallah Ahmed Elsayed Mowafy , 2013الوصف: 123 Leaves : phorographs ; 30cmموارد على الإنترنت: ملاحظة الأطروحة: Thesis (M.Sc.) - German University - Faculty of Postgraduate Studies and Scientific Research - Department of Design and Production Engineering ملخص: During the punching operation the work piece is subjected to residual stresses. A compressive layer of residual stresses is formed on the top side while a tensile residual stress layer is formed on the lower surface of the sheet, which create a bending moment on the sheet which lead to its unevenness. The unevenness can be stated as the non-flatness of the sheet metal on a flat surface
| نوع المادة | المكتبة الحالية | المكتبة الرئيسية | رقم الاستدعاء | حالة | الباركود | |
|---|---|---|---|---|---|---|
Thesis
|
قاعة الثقاقات الاجنبية - الدور الثالث | المكتبة المركزبة الجديدة - جامعة القاهرة | Cai01.34.M.Sc.2013.Ah.D (استعراض الرف(يفتح أدناه)) | لا تعار | 01010110063658000 |
Thesis (M.Sc.) - German University - Faculty of Postgraduate Studies and Scientific Research - Department of Design and Production Engineering
During the punching operation the work piece is subjected to residual stresses. A compressive layer of residual stresses is formed on the top side while a tensile residual stress layer is formed on the lower surface of the sheet, which create a bending moment on the sheet which lead to its unevenness. The unevenness can be stated as the non-flatness of the sheet metal on a flat surface
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