نتایج جستجو برای: جوشکاری tig

تعداد نتایج: 2202  

Magnesium alloys are very attractive materials owing to their properties of low density, high specific strength and stiffness, good castability, and weldability. AZ31 magnesium alloys in terms of weldability has better situation than the other, so it has more applications than other magnesium alloys. In this study, TIG and pulsed TIG welding method was used to welding the AZ31 alloy and finally...

2015
S. K. Jarial

The main objective of industries reveal with manufacturing better quality product at low cost and increase productivity. TIG welding is most vital and common operation use for joining of two similar or dissimilar parts with heating the material or applying the pressure by using the filler material for increasing productivity with less time and cost constrain. The TIG welding parameters are the ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی موادو متالورژی 1386

در پژوهش حاضر، اثر عملیات ذوب سطحی توسط فرآیند tig و نیز تاثیر متغیرهای جوشکاری بر ریزساختار و خواص سایشی چدن خاکستری پرلیتی مورد بررسی قرار گرفته است. چدن خاکستری به دلایل اقتصادی و نیز به دلیل ویژگی های منحصر به فرد آن در صنایع مختلف به ویژه ماشین سازی، مورد توجه است. به دلیل کاربردهای سایشی قطعات چدنی در این صنایع، سطح قطعات با روش های مختلف از جمله ذوب سطحی با tig، اصلاح می گردد. بر اساس نت...

Journal: :Archives of facial plastic surgery 1999
R W Kridel B A Scott H M Foda

BACKGROUND Correction of the lower third of the nose is perhaps the most challenging component of performing a rhinoplasty. The tongue-in-groove (TIG) technique provides a method for correcting excess columellar show and maintaining correction of caudal deviation. It is also indicated for controlling nasal tip rotation and projection while preserving the integrity of the lobular cartilaginous c...

Journal: :The National medical journal of India 1998
M Agarwal K Thomas J V Peter L Jeyaseelan A M Cherian

BACKGROUND Tetanus is a major cause of mortality and morbidity in developing countries. Various modalities of treatment to prevent progression of the disease and alter its outcome have been tried. This study was designed to evaluate the role of intrathecal human anti-tetanus immunoglobulin (TIG) in the management of tetanus. METHODS Thirty-six adult patients presenting to an university-affili...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده مهندسی 1390

آلیاژهای آلومینیوم برنز نیکل دارای کابرد گسترده ای در تجهیزات دریایی می باشند. این آلیاژها دارای میکروساختار پیچیده ای شامل فازهای ?، و ترکیبات بین فلزی ? (i?، ii?، iii? و iv?) می باشند که ترکیب این فازها و حضور هر کدام از آن ها منجر به تغییرات گسترده ای در مقاومت به خوردگی این آلیاژها می شود. این مسأله به خصوص در زمانی که عملیات ناگزیری مثل جوشکاری بر روی آن ها انجام می شود و منجر به تغییرات د...

2015
Miyako Udono Kaoru Fujii Gakuro Harada Yumi Tsuzuki Keishi Kadooka Pingbo Zhang Hiroshi Fujii Maho Amano Shin-Ichiro Nishimura Kosuke Tashiro Satoru Kuhara Yoshinori Katakura

Many genes and signaling pathways have been found to be involved in cellular senescence program. In the present study, we have identified 16 senescence-associated genes by differential proteomic analysis of the normal human diploid fibroblast cell line, TIG-1, and focused on ATP6V0A2. The aim of this study is to clarify the role of ATP6V0A2, the causal gene for ARCL2, a syndrome of abnormal gly...

2004
Songling HUANG Luming LI Haiqing YANG Keren SHI

(1) A mathematical model of weldpool surface deformation and keyhole formation in PAW+TIG DSAW process is developed on the basis of magnetohydrodynamic theory and calculus of variations with considering all kinds of dynamic factors acting on the weldpool. (2) Welding current of PAW+TIG DSAW process flows in from the TIG bottom side of workpiece, along the keyhole and metal neighborhood and away...

Journal: :Computational Linguistics 1995
Yves Schabes Richard C. Waters

Tree insertion grammar (TIG) is a tree-based formalism that makes use of tree substitution and tree adjunction. TIG is related to tree adjoining grammar. However, the adjunction permitted in TIG is sufficiently restricted that TIGs only derive context-free languages and TIGs have the same cubic-time worst-case complexity bounds for recognition and parsing as context-free grammars. An efficient ...

Journal: :Journal of materials research and technology 2021

A comparative study to investigate the influences of single component fluxes on depth-to-width ratio (DWR) oxygen free copper was carried out with novel variants tungsten inert gas (TIG) welding namely Activated TIG (A-TIG), Flux Bounded (FB-TIG) and Zoned processes. The experiments identify delivering higher DWRs in A-TIG among thirteen distinct were followed by trials FB-TIG FZ-TIG employing ...

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