4963

4667

كارشناسي ارشد

ساخت و توليد

اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك

1388

دوازده،111ص: مصور، جدول،عكس، نمودار

ص.ع. به:فارسي و انگليسي

محسن صفوي

حسن خادمي زاده

28/10/88

محمود سليمي، عليرضا فدائي تهراني

مهندسي مكانيك

ID4667

به فارسي و انگليسي: قابل رويت در نسخه ديجيتال

Analysis of Cold Rolling Process Using Damage Mechanic Rasul Rashidifar rashidi@me iut ac ir Date of submission 2009 June 06 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiAssoc Prof S M Safavi mosafavi@cc iut ac ir Abstract The main purpose of the present thesis is to analysis the effects of variation of rolling speedin tandem cold rolling process At the beginning the various factors which are in fluenciveon tearing of strip such as manual effects equipments and strip defects are studies Using theoritical equation the main parameters of tandem cold rolling are calculated andare copmared with practical results of tandem cold rolling line in Foulad Mobarake steelcompany and calculated parameters were validated Then the tandem cold rolling pocess was simulation by means of finite element software ABAQUS Explicit and damage critria was defined as strip s tear criteria Among variousdamage models available in ABAQUS software FLD damage was selected Erichsen test was applied on St12 steel sheett model to extract Correlated parameters tofollowing that results of simulation of tandem cold rolling were compared with practical andanalytical results and validated Consequently variations of rolling speed and it s effects onstrip s tear were analysed Key WordsTandem Cold Rolling Velocity Variation Tearing of Sheet Metal Damage Forming LimitDiagram FLD FLD Damage ABAQUS Finite Element Analysis

محسن صفوي

حسن خادمي زاده

محمود سليمي، عليرضا فدائي تهراني