000			02253cam a2200349 a 4500
003			EG-GiCUC
005			20250223031205.0
008			150330s2014 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.13.13.M.Sc.2014.Bi.E
100	0		_aBishoy Michael Rizk Dawood
245	1	0	_aExperimental and numerical study of the bending process of tailor welded blanks / _cBishoy Michael Rizk Dawood ; Supervised Abdalla S. Wifi , Mostafa H. Shazly , Alaa M. El-Mokaddem
246	1	5	_aدراسة معملية وعددية لعملية ثنى لالواح مصممة ملحومة
260			_aCairo : _bBishoy Michael Rizk Dawood , _c2014
300			_a137 P. : _bcharts , facsimiles ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Design and Production
520			_aA tailor-welded blank (TWB) is comprised of two or more separate pieces of sheet metal welded together prior to stamping. TWBs allow the welding of materials with different grades, thickness or corrosion coatings together to achieve desired properties in different areas. However, several process defects appear during the forming of TWBs such as springback, reduced formability due to welding, and weld-line movement (WLM). The present work studies the effect of different process parameters on springback and WLM through an integrated experimental and numerical analysis of U-bending process of the TWB. The analysis of draw-bending process shows that, under constant BHF schemes, weld-line moves under all BHF levels considered. WLM occurs at the early stage of punch travel. This problem has been successfully solved via the use of variable blank holding force (VBHF) schemes that eliminates WLM
530			_aIssued also as CD
653		4	_aSpringback
653		4	_aTWB
653		4	_aWeld-line movement (WLM)
700	0		_aAbdalla Shaban Wifi , _eSupervisor
700	0		_aAlaa Mohamed Elmokaddem , _eSupervisor
700	0		_aMostafa Hassan Shazly , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aSoheir _eCataloger
942			_2ddc _cTH
999			_c50153 _d50153