پديد آورنده :
منتظرالقائم، حميد
عنوان :
تحليل تئوري و تجربي رفتار ترموپلاستيكي و متالورژيكي فرايند جوشكاري اصطكاكي اغتشاشي دو سرعته
گرايش تحصيلي :
ساخت و توليد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
هجده،129ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
عليرضا فدائي تهراني، محسن بدرسماي
استاد مشاور :
سعيد ضيايي راد، مرتضي شمعانيان
توصيفگر ها :
شكل هندسي جوش , مدل دمايي , ورق هاي نازك تركيبي
تاريخ نمايه سازي :
3/12/93
استاد داور :
مهدي ظهور، محمدرضا فروزان، مهران مرادي،احمد كرمانپور
كد ايرانداك :
ID715 دكتري
چكيده انگليسي :
Theoretical and Experimental Analysis of Thermoplastic and Metallurgical Behavior of Dual Rotation Speed Friction Stir Welding Hamid Montazerolghaem H montazerghaem@me iut ac ir 2014 09 17 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Alireza Fadaie Tehrani mcjaft@cc iut ac ir Mohsen Badrossamay mohsen badrossamay@cc iut ac ir Saeed Ziaie Rad Morteza Shamanian Esfahani Mohamad Reza Salimpour Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Department of Materials Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Abstract Implementing differential rotation speeds of the pin and shoulder for friction stir welding process is considered A model based on energy for predicting maximum temperature in conventional friction stir welding has been extended to estimate the heat evolution in the weld zone for dual rotation speed friction stir process The model has been verified using the data found in the literature and performed experiments Experimental has been carried out using a designed and fabricated apparatus for dual rotation speed friction stir welding Metallographic studies of the welded samples reveal that individual proper selection of the pin and the shoulder rotation speeds not only results in obtaining defect free joints but also affecting the weld zone via controlling the delivered heat input to the weld This study also presents a novel approach for fabricating thin welded plates with excellent surface finishing and physical properties using friction stir welding process Similar and dissimilar materials were welded under various conditions followed by cold rolling operations to the desired thin thicknesses Results indicate that the presented approach can be replaced with costly fusion processes especially for ultra thin joints Key Words Friction Stir Welding Thermal Model Dual Rotation Speed Shoulder Pin Aluminum Introduction Friction Stir Welding FSW a solid state joining process was invented at TWI in 1991 1 Although conventional FSW process may produce defect free welds with reasonable properties of the weld regions compared with fusion welding process the produced thermal cycle might be sufficient to reduce the mechanical and corrosion properties of the weld 2 Using the dual rotation speed friction stir welding DRS FSW where the pin and the shoulder are rotated at different speeds the rate of input energy into the weld zone can be controlled 3 4 Although decreasing the maximum produced temperature within the weld zone using DRS FSW has been reported 3 4 to the best knowledge of the authors there is no published research on the individual effect of the pin or the shoulder rotation speed on the stirring condition inside the weld zone
استاد راهنما :
عليرضا فدائي تهراني، محسن بدرسماي
استاد مشاور :
سعيد ضيايي راد، مرتضي شمعانيان
استاد داور :
مهدي ظهور، محمدرضا فروزان، مهران مرادي،احمد كرمانپور
