Kobalt esaslı süper süperalaşımların da kullanıldığı gaz türbini ve roket motor parçalarının üretiminde, yüksek sıcaklık oksidasyon dirençleri nedeniyle benzer olmayan metallerin kaynağına ihtiyaç duyulmaktadır. Gaz tungsten ark kaynağı (TIG), Lazer (LW), Elektron ışını (EBW) Plazma (PAW) gibi ergitme kaynak işlemleri, uygulamaları için yaygın olarak kullanılmaktadır. Kaynaklı birleştirmelerde ...

316L stainless steel joined to mild is widespread in several applications reach a requested good association of mechanical properties at lower cost. The activating tungsten inert gas (ATIG) weld was carried out using modified flux composed 76.63% SiO2 + 13.37% Cr2O3 10% NaF meet standard recommendations terms limiting the root penetration. Modified optimal gave depth penetration 1.84 times grea...

BACKGROUND Metal Inert Gas (MIG) welding and Tungsten Inert Gas (TIG) welding are widely used for mild steel segments in basic metal industries. Pulmonary problems such as asthma, pulmonary inflammation, hyper-responsiveness of airways and higher susceptibility to infections are reported as the result of occupational exposure of welders to ozone and nitrogen oxides. Potent oxidizing agents like...

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This paper is focused on the study and the control of a deposition process of robotic arc welding. The process consists of a SMD (Shaped Metal Deposition) system, that is a novel rapid prototyping tungsten inert gas (TIG) welding technique leading to near-net-shape, using a layer by layer deposition technique. An experimental setup has been properly implemented in order to study the system and ...

Tree Insertion Grammar (TIG) is a compromise between Context Free Grammar (CFG) and Tree Adjoining Grammar (TAG) that can be parsed in O(n3)− time. In the literature, just two parsers for TIGs have been defined, based on the well-known CYK and Earley algorithms for CFGs. In this paper, we define four new parsers for TIGs: three parsers use a bottom-up strategy and the other one uses a predictiv...

While dnaK and tig are the essential components for nascent polypeptide folding in E. coli, deletion did not confer synthetic lethality in B. subtilis, suggesting that under normal growth conditions, another system or mechanism with a specific role prevails. Likewise, survival at high temperature suffered dramatically, resulting from deletion of several sets of heat shock genes, thus during sud...

UNLABELLED Infectious diseases endanger all dental personnel during treatment, especially when spatter and aerosols are produced. Therefore, there is a strong need for better infection control principles during all treatments. The purpose of this in-vitro pilot study was to measure the environmental spatter contamination through a fluorescence technique. Scaling was performed using different po...