4676

4404

كارشناسي ارشد

ساخت و توليد

اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك

1387

ده،95،[II]ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

محمود فرزين

محمدرضا فروزان

88/7/13

محمود سليمي، عليرضا فدائي تهراني

1396/09/20

كتابنامه

مهندسي مكانيك

ID4404

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Theoritical and Experimental Investigation of Sheet Metal Bending by Laser Beam Ahmad Reza Majed Hossein Abadi ahmadmajed@me iut ac ir February 15 2009 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree M Se Language FarsiM Farzin farzin@cc iut ac irAbstractLaser forming is an innovative technique that uses a defocused laser beam to form sheet metal by thermalstresses rather than external forces Promising potential applications of laser forming include rapid prototyping straightening aligning and adjusting of macro micro components In This thesis firstly reviews the mechanisms involved in laser forming and analytical models proposed forthem Then influencing factors on the laser bending process have been discussed In this dissertation theStraight Line Laser Forming process was simulated by using ANSYS commercial software developing relatedANSYS codes macros in order to estimate temperature distributions stresses and plastic strains Thesimulation process is done uncouple thermal mechanical First thermal model is solved and the results of thethermal solution is used to load on mechanical model and then by solving mechanical model the bend angle iscomputed In this research thermo physical and mechanical properties is depended to temperature Moreover aseries of experiment carried out on stainless steel AISI 304 using a continuous wave CO2 laser source Thesurface of sampls was coated with graphite in order to increase absorption The results of this model accordancewith the experimental results Key WordsLaser forming Bending Sheet metal Forming Thermal stress Numerical simulation

محمود فرزين

محمدرضا فروزان

محمود سليمي، عليرضا فدائي تهراني