شماره راهنما :
1362 دكتري
پديد آورنده :
برقي كار، حامد
عنوان :
مطالعه تجربي و شبيه سازي عددي توليد لنزهاي PMMA كروي به روش تزريق پلاستيك و ارزيابي هندسي و اپتيكي محصول
گرايش تحصيلي :
ساخت و توليد
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان
صفحه شمار :
ت، [158]ص.: مصور، جدول، نمودار
استاد راهنما :
پيمان مصدق
استاد مشاور :
محمود معصومي، مهدي رنجبر
توصيفگر ها :
انواع لنزهاي اپتيكي , هندسه لنز
استاد داور :
محمد حسين بهشتي، احسان فروزمهر، مهدي كاروان
تاريخ ورود اطلاعات :
1398/01/17
تاريخ ويرايش اطلاعات :
1398/01/19
كد ايرانداك :
ID1362 دكتري
چكيده انگليسي :
Experimental Study and Numerical Simulation of PMMA Spherical Lenses Produced by Injection Molding Process by Evaluation of Geometrical and Optical Properties of Product Hamed Barghikar h barghikar@me iut ac ir Date of Submission 2019 01 16 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree Ph D Language Farsi Supervisor s Name 1 Peiman Mosaddegh mosaddegh@cc iut ac ir Advisor s Name 2 Mahmoud Masoumi Advisor s Name 3 Mehdi RanjbarDepartment Graduate Program Coordinator Reza TikaniAbstractInvestigation of the geometric and optical quality of polymer lenses in the injection molding processis costly and time consuming So looking forward to reducing the cost of inspection while ensuringthe optical quality of the lenses after production is consider in this study The geometric quality of bi convex and bi concave spherical lenses and comparing the trend of the pressure and temperaturegraph of the mold cavity to the optimum geometric mode as reference trend and the maximumgeometric deviation is evaluated Regarding the priority of the effect of the geometric parameters average volumetric shrinkage and warpage are the best parameters for consideration The results showthat the most important effective injection molding process parameters in lens molding are packingtime packing pressure melt temperature and mold temperature According to the experimentalresults the average amounts of PV for the two surfaces of the bi convex lens in the optimum levelare 7 7 and 7 9 and for the bi concave lens are 8 8 and 8 1 In addition the geometric qualityof a lens is better when the trend of slope of the pressure graph is lowered to zero and should not bereduced suddenly for all three sensors locations KeywordsAverage volumetric shrinkage Warpage Spherical lens Injection molding Peak to valley Moldcavity pressure temperature Department of Mechanical Engineering Isfahan University of Technology Isfahan Iran P O B 8415683111 Isfahan Iran Department of Chemical Engineering Isfahan University of Technology Isfahan Iran Department of Physics Isfahan University of Technology Isfahan Iran
استاد راهنما :
پيمان مصدق
استاد مشاور :
محمود معصومي، مهدي رنجبر
استاد داور :
محمد حسين بهشتي، احسان فروزمهر، مهدي كاروان
