نتایج جستجو برای: tig
تعداد نتایج: 1040 فیلتر نتایج به سال:
در این پژوهش تاثیر حرارت ورودی بر ریزساختار و رفتار مکانیکی در اتصال ورق های نازک آلومینیوم سری 5456 در دو فرآیند جوشکاری قوسی تنگستن_گاز (GTAW) و جوشکاری قوسی فلز_گاز (GMAW) مورد بررسی قرار گرفت. بدین منظور فلز پایهی آلومینیوم با ضخامت 9/0 میلی متر، فلز پرکننده ی ER5356 به قطر 2/1 میلی متر و گاز محافظ آرگون مورد استفاده قرار گرفت. ریزساختار و سطح مقطع شکست بترتیب توسط میکروسکوپ نوری و میکروسک...
Due to special properties such as low density, high strength and high corrosion resistance Ti-6Al-4V alloy has been used extensively in various industries, especially in the aerospace aspects. However the major problem of this alloy is its poor tribological properties under relatively high loads. In the present study, in order to improve the tribological properties of mentioned alloy, chromium ...
The prediction of the weld bead geometry parameters is an important aspect welding processes due to it related strength welded joint. This research focuses on using statistical design techniques and a deep learning neural network predict shape shielded metal arc (SMAW), inert gas (MIG), tungsten (TIG) processes. With techniques, experiments were carried out obtain data for generating regression...
Fin-shaped Field-Effect Transistors} (FinFETs) with Three Independent Gates (TIG) have been recently demonstrated capable of an ultra-steep-slope operation down to 3.4mV/dec. In this paper, we explore their opportunities in the domain of analog design and terahertz detectors. We see that they could result in analog circuits with 25× power efficiency improvement and in THz detectors with 2 order...
We describe the TIG formalism and its advantages over CFGs and TAGs. We then give an algorithm for training PLTIGs following Hwa (2001). We train on a partially supervised corpus by repeated parsing with a lexicalized normal form. The training algorithm is EM-style, and the parsing algorithm is a generalization of CKY. Finally, we look toward the possibility of extending this method into a sync...
Titanyum alaşımları, üstün özellikleri nedeni ile birçok alanda kullanılmaktadır. Bu alaşımlardan yapılan imalat işlemlerinde veya sonrasında kaynak birleştirme yapılmaktadır. çalışmada birleştirilen Ti6Al4V titanyum alaşımının mikroyapı, sertlik ve asidik ortamdaki korozyon incelenmiştir. Asidik özelliğinin incelenmesinin amacı, kaynaklı alaşımlarından imalatların kimya, petrokimya benzeri ala...
Different post-weld treatment methods have been developed to enhance the fatigue strength of welded steel structures and extend service lives their components. High-frequency mechanical impact (HFMI) tungsten inert gas (TIG) remelting are two that attracted considerable interest in recent decades. This paper presents results a study life extension for pre-fatigued details which can be achieved ...
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