000 01556cam a2200289 a 4500
003 EG-GiCUC
005 20250223031027.0
008 140818s2013 ua o f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aGift
097 _aM.Sc
099 _aCai01.34.M.Sc.2013.Ah.D
100 0 _aAhmed Awadallah Ahmed Elsayed Mowafy
245 1 0 _aDetermination of parameters to manipulate the evenness of perforated sheets with non-circular contours of holes /
_cAhmed Awadallah Ahmed Elsayed Mowafy ; Supervised Nahed Elmahallawy , Rainer Hank , Alexander Tatarczyk
260 _aCairo :
_bAhmed Awadallah Ahmed Elsayed Mowafy ,
_c2013
300 _a123 Leaves :
_bphorographs ;
_c30cm
502 _aThesis (M.Sc.) - German University - Faculty of Postgraduate Studies and Scientific Research - Department of Design and Production Engineering
520 _aDuring 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
700 0 _aAlexander Tatarczyk ,
_eSupervisor
700 0 _aNahed Elmahallawy ,
_eSupervisor
700 0 _aRainer Hank ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c46916
_d46916