نتایج جستجو برای: جوشکاری tig
تعداد نتایج: 2202 فیلتر نتایج به سال:
در این تحقیق به بررسی ساختار میکروسکوپی و خواص سایش روکش استلایت 6 بر سطح فولاد زنگ نزن 316 بدون حضور و باحضور درصد های وزنی مختلف (10، 20 و 30) ذرات tic پرداخته شد. جهت اعمال روکش از فرایند جوشکاری قوسی تنگستن-گاز(tig) با سه حرارت ورودی مختلف و دو نوع جریان dcen معمولی و پالسی استفاده گردید. همچنین به منظور امکان سنجی رسوب مجدد ذرات ticحل شده نمونه ها عملیات حرارتی شدند. ریز ساختار روکش توسط م...
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Abstract Tungsten inert gas (TIG) welding is frequently used to fabricate super duplex stainless steel weldments due its superior mechanical qualities and attractive appearance in contrast with other arc techniques. The broad use of TIG remains constrained despite all advantages. Thus, the process activated flux tungsten (A-TIG) created. In current study, ATIG different oxide fluxes execute bea...
در این تحقیق روکش استلایت 6 حاوی درصد های وزنی مختلف ذرات تقویت کننده TiC (0، 10، 20 و 30) بر سطح فولاد زنگ نزن 316 به روش جوشکاری قوسی تنگستن-گاز(TIG) اعمال گردید. ریز ساختار روکش توسط میکروسکوپ نوری، میکروسکوپ الکترونی روبشی (SEM) و فاز شناسی توسط پراش پرتو ایکس(XRD) مورد بررسی قرار گرفت. به کمک آزمون ریز سختی سنجی ویکرز پروفیل سختی نمونهها تهیه شد و آزمون سایش پین روی دیسک به منظ...
The development and fabrication of fusion reactor components utilize different grades of stainless steel materials and different welding techniques. Major candidates are TIG welding, Laser welding and Electron beam welding and Narrow Gap TIG welding. The weld joints quality evaluation and their mechanical properties are to be analyzed for performance of these developed components. The welded jo...
Gas tungsten arc welding is a popular process in those applications requiring a high degree of quality and accuracy. However, this process has a big disadvantage against the substantially high productivity welding procedures. Hence, many efforts have been made to improve its productivity. One of these efforts is the use of activating flux (A-TIG welding). In this study, the performance of A-TIG...
The fatigue fracture of structural details subjected to cyclic loads mostly occurs at a critical cross section with stress concentration. The welded joint is particularly dangerous location because of sinergetic harmful effects of stress concentration, tensile residual stresses, deffects, microstructural heterogeneity. Because of these reasons many methods for improving the fatigue resistance o...
Different post-weld treatment methods are used to strengthen welded joints that subjected cyclic loading. Combining High-Frequency Mechanical Impact (HFMI) with Tungsten Inert Gas (TIG) remelting is rather a new concept. In this paper, the fatigue lives of transverse attachments treated by HFMI-treatment, TIG-remelting, or combination both estimated using damage modelling and finite element del...
This study investigates the combined effect of Tungsten Inert Gas (TIG) and Metal (MIG) arcs in achieving improved mechanical microstructural properties compared with standalone TIG MIG based on optimum parameters setting for welding processes. Miller machines a maximum capacity 400 A were used as heat source. The welds produced by TIG-MIG, processes characterized via tensile hardness testing, ...
Tungsten Inert Gas welding (TIG) process is an important component in many industrial operations. The TIG welding parameters are the most important factors affecting the quality, productivity and cost of welding. This paper presents the influence of welding parameters like welding current, welding speed on strength of low carbon steel on AA1050 material during welding. A plan of experiments bas...
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