پديد آورنده :
سخايي، اميرحسين
عنوان :
شبيه سازي نورد گرم مقاطع ناوداني
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
طراحي كاربردي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان،دانشكده مكانيك
صفحه شمار :
دوازده،84ص.:مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمود سليمي،محمود كدخدائي
توصيفگر ها :
روش المان محدود , طراحي كاليبر , تعريض
تاريخ نمايه سازي :
89/1/23
استاد داور :
محمود فرزين،مهران مرادي
تاريخ ورود اطلاعات :
1396/09/28
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Simulation of hot rolling of channel section Amir Hosein Sakhaei a sakhaei@me iut ac ir 08 03 2010 Mechanical Engineering Department Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language Farsi Dr Mahmoud Salimi salimi@cc iut ac ir Dr Mahmoud Kadkhodaei kadkhodaei@cc iut ac irAbstractNow days rolling technology plays a great role in industrial and economical development in most countriesand it is because in compare with other metal forming processes rolling is used to manufacture moreproducts Regarding the construction application of channel angle and I Beam sections shape rolling have aspecial position among other rolling processes One of the main aspects of this process is designation of hotshape rolling steps named rolling calibration Shape rolling calibration is usually done based on trial anderror in industry as a result the most expenses of installation of a rolling production line is assigned to thispart This paper presents a three dimensional analysis for hot rolling of channel section beams by the finiteelement method using ABAQUS Explicit A complete production line containing 13 passes for forming thesection including break down intermediate and finishing sequences are modeled and the exit section of eachpass is imported as the entering material for the next pass The geometry and dimensions of the exit crosssection of each stand separation force roll torque and the power consumptions in each pass are calculated The output geometry and work power predicted by the numerical solution were verified by the practicalinformation of Zobahan Esfahan Company In the next step a group of 3 D finite element simulations using ABAQUS Explicit are performed to studythe parameters affecting the spread of working material in shape rolling processes The results are verified byother analytical researches and available experimental findings Then a sample caliber design process toachieve a certain cross section is made The minimum possible number of passes according to the parametersaffecting the spread is the main strategy for a new pass design Then the production line for this new caliberis simulated using ABAQUS Explicit and the geometry and dimensions of the exit cross section theseparation force roll torques and the power consumption in each stage are calculated A comparison for thenew design and a practical caliber used in industry for the same cross section is made At the end a new caliber design is presented to reduce the forming steps in channel section rolling accordingto standards from 13 passes to 11 passes and then with the use of finite element simulations different rollingparameters such as roll separation forces roll torques power consumption stress and strain contours andgeometry of work piece cross section in each stage are calculated The new caliber design is compared withindustrial design to show the advantages and disadvantages of new design Key wordsRoll pass caliber design Shape rolling Finite element method Spread
استاد راهنما :
محمود سليمي،محمود كدخدائي
استاد داور :
محمود فرزين،مهران مرادي
