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Dissertations / Theses on the topic 'TIG welding'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Naseer-Ahmed. "Synergic control in MIG welding and penetration control in TIG welding." Thesis, London Metropolitan University, 1992. http://repository.londonmet.ac.uk/3451/.

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Part 1: Synergic control in MIG welding. Synergic controls (i.e. real time control methods) for both steady DC open arc and short circuiting arc operations have been developed in this study. These have been based on the generalised quadratic and linear ‘power-current' and linear ‘voltage-current’ equations which adequately describe the MIG welding operation. The controls are low coat electronic units which are added to a ‘transistor’ controlled power source. The units based on the ‘power-current’ concept can operate with the power source set in the constant current, constant voltage or any int

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2

Tan, Colin C. M. "Automation of some aspects of TIG welding." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235509.

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Ooi, Cheng Lee. "Waveform effects in bipolar TIG welding of aluminium." Thesis, Cranfield University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283811.

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4

Riggs, Mark R. "TIG Welding of Nickel Titanium to 304 Stainless Steel." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397607979.

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5

Rashid, Lezan. "Overlay welding of FeCrAl alloys." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-44345.

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In this master thesis different overlay welding methods suitable for boiler application has been investigated. The purpose of this project is to define advantages and disadvantages for each overlay welding methods and suggest some evaluation criteria on some commercial and experimental alloys aimed for overlay welding material. Many components in a boiler are made of low alloy steel and the atmosphere in the furnace region can be very complex; therefore many different types of corrosion can occur. Weld overlay is a process where one or multiple layers of corrosion resistant material are applie

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Thornton, M. F. "Spectroscopic determination of temperature distributions for a TIG arc." Thesis, Cranfield University, 1993. http://dspace.lib.cranfield.ac.uk/handle/1826/10551.

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Argon TIG arc temperatures have been measured for a wide range of arc parameters using the 'Fowler-Milne' spectroscopic method. Prompted by widespread disagreement amongst temperatures published by previous groups, a detailed investigation has been carried out into those experimental and theoretical aspects of the measurement process that may have led to incorrect results. The tests have included the variation of experimental parameters, the choice of Abel inversion procedure, and the calculation of argon species number densities and partition functions. The existence of equilibrium within the

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7

Chen, Xiao-Qi. "Sensor based automatic control system for narrow gap TIG welding." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278614.

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8

Drápela, Petr. "Využití hybridní technologie Laser-TIG pro svařování hliníkových slitin." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399437.

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Different problems arise from choice of setting technological parameters during welding of alluminium alloys. Choice of welding method, welding speed and material influence mechanical properties of welds. During welding of alluminium alloys come difficulties due to oxidation of thin surface layer of material. One of ways how to overcome this obtacle is to use hybrid laser-TIG welding method. In this diploma thesis is described influence of welding processes on mechanical properties of two alluminium alloys(EN AW-5754 H22, EN AW-6082 T6) and change in their microstructure during welding.

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Pollard, William Nichols Jr. "Non-contact Temperature Measurement of Stainless Steel in a TIG Welding Process." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/35433.

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The goal of this research was to design and test an experimental setup capable of performing a TIG welding process and acquiring temperature measurements near the weld with the use of an infrared spot sensor. The data collected can then be used to validate a computer simulation that models the exact same process. An experimental setup was built, and preliminary temperature data were collected. It was determined that infrared measurements taken at the arc contain excessive amounts of interfering radiation emanating from the welding zone. The optimal angle of orientation is normal to the weld li

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10

Carvalho, Sheila Medeiros de. "Estudo da soldabilidade a laser e a TIG do titânio comercialmente puro grau 2 empregado em sistemas pneumáticos de aeronaves." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/97/97134/tde-02102013-112909/.

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O conjunto de tubos denominado sistema pneumático, tem a função de conduzir o ar quente pressurizado desde o motor até os pontos de utilização pelos sistemas ambientais da aeronave. A ocorrência de falhas em serviço de peças desse sistema soldadas pelo processo TIG (Tungsten Inert Gas), motivou o estudo da substituição desse processo pelo de soldagem a laser. Foi utilizado um laser a fibra de 2 kW de potência e tubos de titânio comercialmente puro grau 2, de 0,5 mm de espessura e 50 mm de diâmetro. Para efeito de comparação foram realizadas soldas pelo processo TIG, semi-automático, cujos parâ

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Macedo, Filho Vanderlei Guilherme de [UNESP]. "Análise da pulsação térmica do processo TIG na soldagem da liga AA6063T6." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/123836.

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Made available in DSpace on 2015-06-17T19:34:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-12-17. Added 1 bitstream(s) on 2015-06-18T12:47:29Z : No. of bitstreams: 1 000823683.pdf: 3204048 bytes, checksum: f0ee3d6a05103cc075f55a3e59de3b96 (MD5)<br>Em algumas ligas de alumínio, em especial as da série 6xxx (Al-Si-Mg), a maior suscetibilidade no desenvolvimento de trincas de solidificação é uma preocupação constante na soldagem TIG CA autógena. No âmbito operacional a minimização dessa ocorrência, ou mesmo sua eliminação, têm sido feita pela utilização de métodos que fundamentalmen

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Macedo, Filho Vanderlei Guilherme de. "Análise da pulsação térmica do processo TIG na soldagem da liga AA6063T6 /." Bauru, 2014. http://hdl.handle.net/11449/123836.

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Orientador: Gilberto de Magalhães Bento Gonçalves<br>Banca: Yukio Kobayashi<br>Banca: Fernanda Raimunda de Abreu<br>Resumo: Em algumas ligas de alumínio, em especial as da série 6xxx (Al-Si-Mg), a maior suscetibilidade no desenvolvimento de trincas de solidificação é uma preocupação constante na soldagem TIG CA autógena. No âmbito operacional a minimização dessa ocorrência, ou mesmo sua eliminação, têm sido feita pela utilização de métodos que fundamentalmente procuram modificar a estrutura bruta de fusão refinando o metal na zona fundida e na zona termicamente afetada através da agitação da p

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Pendlebury, Mark. "The design and production of an automated TIG (Tungsten Inert Gas) welding machine." Thesis, University of Liverpool, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240265.

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Manorathna, Prasad. "Intelligent 3D seam tracking and adaptable weld process control for robotic TIG welding." Thesis, Loughborough University, 2015. https://dspace.lboro.ac.uk/2134/18794.

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Tungsten Inert Gas (TIG) welding is extensively used in aerospace applications, due to its unique ability to produce higher quality welds compared to other shielded arc welding types. However, most TIG welding is performed manually and has not achieved the levels of automation that other welding techniques have. This is mostly attributed to the lack of process knowledge and adaptability to complexities, such as mismatches due to part fit-up. Recent advances in automation have enabled the use of industrial robots for complex tasks that require intelligent decision making, predominantly through

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Brehovský, Patrik. "Svařování hlubokotažných ocelí s ochrannou vrstvou hybridní technologií Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417119.

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The diploma thesis focuses on laser welding of extra deep-drawn steel sheet according to the standard WSS-M1A365-A14 with a protective zinc surface layer. A 0,9 mm thick steel sheet with a zinc layer with coating weight 50 g · m^-2 is welded by a hybrid welding method Laser-TIG. The laser, as the primary energy source, is used for welding the material. The arc, provided by a non-melting tungsten electrode, is used for preheating the material for melting and evaporation of the zinc layer. Based on the initial experiments, the magnitude of the laser power with the welding speed was chosen as a c

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16

Kazdera, Tomáš. "Certifikace firmy dle ČSN EN 15085 a ČSN EN ISO 3834." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231008.

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The project elaborated in frame of engineering studies is focused on the certification of the company SW-MOTECH sro in the welding of steel structures for rail vehicles. According to standards ČSN EN 15085 and ČSN EN ISO 3834. The first part focuses on theoretical introduction to the used welding methods. The second section describes the destructive and non-destructive tests on individual welding methods, including their evaluation. Based on work tests pWPS is exposed to welding procedure WPS

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Stone, David Andrew. "Frontface monitoring of weld penetration." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329510.

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18

Herčík, Tomáš. "Svařitelnost kobaltových slitin hybridní metodou Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417054.

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The master thesis summarizes the critical situation of the lack of a cobalt used in different industry branches. Due to its increasing price, it will not be possible to use in existing applications. One of these applications is production of cobalt alloys where the replacement of this element is impossible. This type of material keeps mechanical properties at high temperature. However, a suitable choice of technology can achieve at least its savings. In the field of welding, the alloys are joined without any use of an additional material. The possible solution could be the use of hybrid techno

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Žák, Tomáš. "Využití hybridní technologie Laser-TIG pro svařování rozdílných materiálů používáných v energetice." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400985.

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Thesis is focused on analyzing the influence of preheating process parameters using electric arc from TIG torch during laser welding on weld properties of stainless steel and carbon steel with higher strength. In this thesis experiment was done in which metal sheets 3 mm thick from X12Cr13 and S355 steels were welded. Welding was done first with using only laser, then laser with TIG preheating and lastly laser with preheated material by induction heater. When TIG preheating was used than set welding current was changed on the power source. The welds were subsequently evaluated based on macrost

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20

Woodward, Neil J. "Pool oscillations and cast variations : penetration control for orbital tig welding of austenitic stainless steel tubing." Thesis, Cranfield University, 1997. http://dspace.lib.cranfield.ac.uk/handle/1826/4512.

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Pool oscillations in tungsten inert gas welding pools have been used in a closed-loop control system for orbital welding of ultra high purity tubing, determining a target level of penetration by altering the welding current in real-time. The technique is ideally suited to this application since it is does not contravene the cleanliness requirements for the inner bore and can be implemented outside the small orbital heads that are commonly used. The results presented in this thesis show how clear pool oscillation signals in extremely small molten pools can be monitored by optimising the welding

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21

Faraone, Kevin Michael. "Gas Tungsten Arc Welding of 304L and 21-6-9 Austenitic Stainless Steel with Penetration Enhancing Compounds." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1388356167.

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22

Antes, Jiří. "Svařování galvanicky pozinkovaných plechů pomocí hybridní technologie Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443206.

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ANTES, Jiří: Welding of galvanized sheets using hybrid Laser-TIG technology This master thesis deals with the welding of zinced deep drawing steel using Laser-TIG technology. The first section of the thesis describes the topic from the theoretical point of view, which includes analysis of welding technologies, influence of used material and application of diagnostic methods. The second part of the thesis is focused on monitoring of welding current impact for weld quality of two types of joints.

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Bukvic, Tomáš. "Svařování žárově pozinkovaných plechů pomocí hybridní technologie Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443207.

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Thesis is focused on verification of suitability of Laser-TIG technology for penetrating welding of galvanized sheets, made of WSS M1A 365-A14 50G steel and DC01 steel. Electric arc functions here as a preheating for evaporation of zink layer. Electric current was chosen as a variable parameter of magnitudes 0, 20, 30 and 40 A. Test welds were made, which have been subjected to a tensile test and metallographic evaluation. The positive influence for electrolytically galvanized steel WSS M1A 365-A14 50G was registered and determination of optimal welding parameters was successful. The electric

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CALVO, WILSON A. P. "Avaliacao e caracterizacao da liga de niquel tipo 600 apos processos de soldagem por fusao TIG, arco plasma e laser." reponame:Repositório Institucional do IPEN, 1997. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10493.

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Azevedo, Alessandra Gois Luciano de. "Soldagem A-TIG em aço inoxidável ferrítico." Universidade Federal de Uberlândia, 2012. https://repositorio.ufu.br/handle/123456789/14708.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The use of active flux in TIG process can be an alternative to increase the productivity since this technique increases the depth of penetration of weld bead maintaining the same parameters of conventional TIG welding. The results obtained indicate that the use of the traditional way of flux application tend to produce slag, which is hard to remove. In order to avoid this problem, are approach is by applying two flux strips alongside the joint, separated by a predetermined distance, defined as parameter \"a\". This technique is c

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Novotný, Michal. "Studium vlastností laserových svarů materiálu Domex 460 MC při využití obloukového předehřevu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399305.

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This diploma thesis deals with weldability of Domex 460 MC material. There are two welding methods and three other welded materials in heterogenous connection which will be researched in this diploma thesis. The welding methods are fiber solid-state laser and a new method of hybrid welding called laser – TIG. The other materials are Domex 700 MC, S355J2 and DC01. Domex 460 MC is a high-strenght steel with fine-grained structure. During the welding process the imput heat decreases mechanical properties of the materials. This effect is caused by material seeds growing. From these samples (which

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Nogol, Petr. "Svařování oceli technologií PATIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-229999.

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The effect of activating flux PATIG on welding arc was investigate in master thesis, A-TIG welding with flux PATIG. The test was performed on six materials with different chemical and mechanical properties. TIG and A-TIG welding was carried out after application flux. Performed require layer of PATIG flux was quite difficult. Result was compared between conventional TIG and experimental A-TIG method of welding. The best reached goals were for high-alloy steels. Typical and 3times deeper penetration was reached for A-TIG compared to conventional TIG welding.

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Fager, Stark Jonathan. "Novel small-scale manufacturing of welding consumables." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-103949.

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Current research and development processes of novel welding consumables constitutes a great cost and requires a lot of time and resources. LNU WML has requested a novel small batch GTAW welding consumables manufacturing process that is cost-, time-, and resource-efficient. The study was conducted in accordance to DFSS, a product developing process under the overarching scientific engineering method “Systems Engineering”. The DFSS process consists of four stages, where stage one and two were completed. This has resulted in the development of three novel concepts, and key parameters has been es

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Krejčí, Adam. "Svařování oceli 22MnB5 pomocí hybridní technologie Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417452.

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This thesis deals with usage of hybrid technology Laser-TIG for welding of boron enhanced steel 22MnB5. This thesis evaluates the influence of preheating using technology of TIG arc welding to a weld quality in comparison with laser welds. In practical part of thesis there were 1,8 mm metal sheets of 22MnB5 welded. This metal sheet specimens were welded by using constant parameters of laser with varying parameters of TIG technology. There were 12 specimens of sheet metal created including 3 specimens using only laser and 9 specimens using Laser-TIG hybrid technology while varying magnitude of

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Kachlíř, Jaromír. "Využití hybridní technologie Laser-TIG pro svařování bórem dopovaných vysokopevnostních ocelí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402499.

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This thesis deals with the usage of arc preheating for welding high strength boron enhanced steel 22MnB5 using hybrid technology known as laserTIG and also its impact on the final weld compared to welds welded by only the laser or the arc method. During the experiment I welded five sheets of the above mentioned steel 1,3 or 1,9 milimeters wide. Except for the welds fabricated by the laser and the TIG method was the only variable the electric current of the arc (I = 20, 40, or 60 A). Welds welded this way were compared based on strength limits measured by the tensile tests. Additionally were th

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Kutil, Petr. "Studium plasticity svaru hlubokotažných plechů svařených technologií Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443205.

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This thesis is focused on laser welding and hybrid laser-TIG welding. The first part contains a brief theoretical description of these technologies. Standard quality and plasticity tests of welded joint are also mentioned. The second, experimental part, centres on the study of plasticity of tailored blanks (made of different types of HSLA steel), that are welded with laser and laser-TIG technology. The aim of the thesis is to assess process parameters effect on weld suitability for following deep drawning operation. Based on the calculated and measured figures obtained from the experiment, the

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Catarino, Jonny Max [UNESP]. "Influência do desbalanceamento da onda retangular na liga de alumínio 6063-T6 soldada pelo processo TIG-CA." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132497.

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Made available in DSpace on 2016-01-13T13:26:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-05-15. Added 1 bitstream(s) on 2016-01-13T13:32:11Z : No. of bitstreams: 1 000853552.pdf: 2536743 bytes, checksum: 042c95e032f6ae0f89e4b73fc75c6c2e (MD5)<br>A soldabilidade das ligas de alumínio é altamente influenciada pela natureza de correntes de soldagem, podendo esta interferir significativamente na qualidade a ser alcançada. O uso da corrente alternada em onda retangular no processo de soldagem TIG, permite inúmeras possibilidades tais como, flexibilidadeem alterar a frequencia da ond

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Catarino, Jonny Max. "Influência do desbalanceamento da onda retangular na liga de alumínio 6063-T6 soldada pelo processo TIG-CA /." Bauru, 2015. http://hdl.handle.net/11449/132497.

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Orientador: Eduardo Carlos Bianchi<br>Co-orientador: Gilberto de Magalhães Bento Gonçalves<br>Banca: Omar Maluf<br>Banca: Yukio Kobayashi<br>O Programa de Pós Graduação em Ciência e Tecnologia de Materiais, PosMat, tem caráter institucional e integra as atividades de pesquisa em materiais de diversos campi<br>Resumo: A soldabilidade das ligas de alumínio é altamente influenciada pela natureza de correntes de soldagem, podendo esta interferir significativamente na qualidade a ser alcançada. O uso da corrente alternada em onda retangular no processo de soldagem TIG, permite inúmeras possibilidad

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Novotný, Jan. "Svařování martenzitické korozivzdorné oceli pomocí hybridní technologie Laser - TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417122.

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Theoretical part of this thesis includes overview of laser welding technology and possible combinations with arc welding methods for meeting desired properties of the weld. It also explains mechanical testing and metallographic examination on welds. The experimental part deals with optimisation of process parameters during welding of martensitic stainless steel, used in energetic industry using hybrid laser - TIG technology in regard of mechanical properties of the weld, its structure and proposal of technological parameters.

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Šurýn, Michal. "Svařování rámů dveří pekařských pecí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228633.

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This thesis made in the frame of my engineer studies is focused on technologic process of welding the door-case of bakery ovens. The project will suggest and rate used based material and then the choice of filler material, methods, welding characteristics and welding procedure. At the conclusion of the thesis is brief economical analysis.

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Koudadje, Koffi. "Etude expérimentale et modélisation numérique du bain de fusion en soudage TIG d'aciers." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4747/document.

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Grâce à la qualité des cordons de soudure produits, le soudage TIG est l’un des procédés de soudage à l’arc les plus répandus dans l’industrie nucléaire. Au cours des travaux de cette thèse, nous proposons un modèle physique pour la simulation numérique du bain de fusion en soudage TIG d’aciers inoxydables austénitiques avec des teneurs en éléments tensioactifs différentes. L’objectif du modèle développé est de prédire la morphologie et les dimensions du cordon de soudure ainsi que les contraintes thermiques résultantes dans les pièces soudées en fonction des paramètres opératoires du procédé

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Rodrigues, Juliana Aparecida. "Estudo da soldabilidade entre o aço austenítico alto manganês de efeito TRIP com o aço microligado ARBL pelo processo de soldagem TIG." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/18/18158/tde-16102014-152401/.

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Tendo em vista a tendência mundial de se buscar a diminuição de peso de estruturas metálicas de veículos, o desenvolvimento de aços de resistência mecânica superior apresenta-se como um importante fator para a competitividade e sustentabilidade da indústria brasileira, além da segurança do usuário. No setor automobilístico, as reduções no peso e no consumo de combustível requerem não somente a pesquisa de novos aços, mas também a utilização de componentes híbridos, resultantes, entre outros, da união entre os aços austeníticos inovadores de alta liga e baixo custo (TRIP) e aços ferríticos come

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Debs, Martin. "Studium vlastností laserových svarů materiálu Hardox 450 při využití obloukového předehřevu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-379020.

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In this thesis is studied the influence of arc TIG preheating during laser welding of 2 mm Hardox 450 material sheets. This material achieves its good mechanical properties by processes of heat treatment. That causes problems during welding because of heat degradation. Experimental sheets were welded within various configurations of welding parameters and positions of TIG nozzle. Testing specimens were cut out by laser and were used for tension testing, Vickers hardness testing and metallographical testing (macro and microstructure). The results of using the second heat source are: wider heat

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Průža, Štěpán. "Svařování palivových filtrů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228068.

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PRŮŽA Štěpán: Welding of fuel filters. This project, worked out in within engineering studies, branch M2307 – 02 Manufacturing technology, submits suggestions for decreasing of scrap during production – mechanized welding of fuel filters made out of aluminum EN AW – Al 99,5 using WIG/TIG methods. The theory is focused on arc welding issue. Verification of possible influences on the weld joints was tested during following experiments: top cover misalignment against the body of the filter, top cover deformation, gas flow, welding parameters setup, welding area purity, mechanization propositions.

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Barros, Isabel Ferreira de. "Dissimilar welding of ferritic stainless steel AISI 444 and AISI 316L austenitic stainless steel through the autogenous TIG process using pulsed current." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14072.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>The use of stainless steels has intensified with the industrial demand growing, which extends its application for various sectors such as the oil and gas, desalination equipment in industry, sugar industry, among others. In that context, the use of ferritic stainless steels has grown in recent years on account of its excellent relationship between corrosion resistance and cost, and a great option in substitution of austenitic stainless steels. Intending to study the connection of dissimilar stainless steels by means of a

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Kelča, Daniel. "Svařování tenkostěnných trubek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229355.

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KELČA Daniel: Welding of thin-walled pipe The project, elaborated during the engineering study, field of study M-VTM (Production technology and industrial management) deals with welding of thin-walled pipes Cats in practise. There are methods of WIG and microplasma welding compared. The suggested basic material is corrosion-resistant ferritic steel X2CrMoTi18-2 (1.4521; AISI 444). Welding runs continuously and depends on the demanded length of the thin-walled pipe. The tests of the weld were designed on the basis of a literary study. They should help us together with the economic evaluation to

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Silva, Jeovan da. "Avaliação da resistência flexural entre diferentes métodos de soldagem: chama direta - TIG - Laser." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/58/58131/tde-13122007-140808/.

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A técnica de soldagem apresenta vantagem de união de partes metálicas que permite melhora na adaptação e uniformidade na distribuição das forças mastigatórias, minimizando falhas no tratamento reabilitador. O objetivo foi avaliar a resistência flexural entre três métodos de soldagem diferentes: Chama Direta a maçarico, método TIG - Tungstênio gás inerte (Soldadora NTY - Kernit, Brasil) e o método de solda a Laser (Soldadora Desktop - Dentaurum, Alemanha) comparando a um grupo controle (Monobloco). Os espécimes cilíndricos foram obtidos a partir de canais de cera pré-fabricados com 3mm de diâme

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Angélico, Cristiano [UNESP]. "Soldagem TIG-AC onda retangular: efeitos da velocidade de soldagem sobre as propriedades mecânicas da Liga AA 6063-T6." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/96488.

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Made available in DSpace on 2014-06-11T19:28:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-10-26Bitstream added on 2014-06-13T20:37:08Z : No. of bitstreams: 1 angelico_c_me_bauru.pdf: 3319014 bytes, checksum: 6e80b1957b5cf72eb5800b57aafd8569 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Neste trabalho foram investigados os efeitos da velocidade de soldagem no comportamento mecânico em juntas da liga AA 6063-T6, soldadas pelo processo TIG-CA com onda retangular desbalanceada. Foram analisadas as características macroestruturais (diluição do metal

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Angélico, Cristiano. "Soldagem TIG-AC onda retangular : efeitos da velocidade de soldagem sobre as propriedades mecânicas da Liga AA 6063-T6 /." Bauru : [s.n.], 2012. http://hdl.handle.net/11449/96488.

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Orientador: Gilberto de Magalhães Bento Gonçalves<br>Banca: Sérgio Rodrigues Barra<br>Banca: Yukio Kobayashi<br>Resumo: Neste trabalho foram investigados os efeitos da velocidade de soldagem no comportamento mecânico em juntas da liga AA 6063-T6, soldadas pelo processo TIG-CA com onda retangular desbalanceada. Foram analisadas as características macroestruturais (diluição do metal de base e coeficiente de forma). O planejamento experimental contemplou a utilização de metal de adição (AWS ER 4043), chanfro em "v" (60º), e variações nos parâmetros de ajuste de onda retangular nominalmente: ampli

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LIA, FOOK Nathália Cristina Morais. "Avaliação da resistência à corrosão em fios soldados de Ni-Ti para uso ortodôntico." Universidade Federal de Campina Grande, 2015. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/287.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-03-14T21:54:07Z No. of bitstreams: 1 NATHÁLIA CRISTINA MORAIS LIA FOOK - DISSERTAÇÃO PPGEQ 2015..pdf: 2182368 bytes, checksum: 5948d7190b44ee52e0cbfdbf788ee8dd (MD5)<br>Made available in DSpace on 2018-03-14T21:54:07Z (GMT). No. of bitstreams: 1 NATHÁLIA CRISTINA MORAIS LIA FOOK - DISSERTAÇÃO PPGEQ 2015..pdf: 2182368 bytes, checksum: 5948d7190b44ee52e0cbfdbf788ee8dd (MD5) Previous issue date: 2015-10-05<br>Capes<br>As ligas de Ni-Ti têm possibilitado uma melhoria em muitos projetos tradicionais de engenharia e das áreas

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Dušek, Vojtěch. "Svařování potrubí z korozivzdorné oceli a titanu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318698.

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This master's thesis deals with the selection and evaluation of the appropriate welding technology for stainless steel and titanium alloys. Describes advantages and disadvantages of selected technologies. The experiment compares the mechanical properties, the heat input and the resulting surface structure of the welded samples. In conclusion, the thesis deals with the technical - economic evaluation of selected welding technologies.

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Kocák, Tibor. "Predpříprava a svařování tlakových hliníkových potrubí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318704.

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The project is an analysis of technology production of pressure pipes made of aluminum alloys. The basis is a literary study of TIG technology, aluminum heat-tretable and non-heat-treatable materials. The flange-material is EN AW 5083 and the pipe is made of EN AW 6005A. The design of the welding is compromise between the preparation, the cleaning of the welding edges and the weld metal backing strip. Weld was made in real production. Examined impacts are evaluated on the basis of destructive and non-destructive welding test methods. After heating process of weldment material exhibits better m

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Frölund, Henrik. "Manual TIG welding of Fe10Cr4Al+RE: overlay on an austenitic substrate and butt weld using alumina forming austenite consumable." Thesis, KTH, Fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279448.

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Renaux, Thibault. "Caractérisation des alliages d'aluminium après refusion in situ : application au soudage." Valenciennes, 2005. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/c3a15612-7d6a-4552-9cc9-178ac3e95441.

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Les domaines d’application du soudage à l’arc électrique sous protection gazeuse des alliages d’aluminium se sont diversifiés en particulier dans le secteur des industries du transport. Les effets des paramètres opératoires restent cependant à parfaire tant leur détermination expérimentale demeure incomplète. Cette étude porte sur le développement d’un protocole expérimental et numérique apte à reproduire les conditions d’élaboration d’un joint soudé. La complémentarité de ces deux aspects permet l’interprétation à l’échelle locale et globale des phénomènes constatés. L’essai, qui s’appuie sur

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Sampaio, Carlos Antonio Freire. "Avaliação comparativa de propriedades geradas pelos processos de soldagem TIG e brasagem em uma liga odontológica à base de Ni-Cr." Universidade do Estado do Rio de Janeiro, 2009. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=945.

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O objetivo deste trabalho foi comparar, por meio de teste de microdureza e técnicas de caracterização metalúrgica, que inclui a metalografia, microscopia óptica, microscopia eletrônica de varredura (MEV) e espectroscopia por dispersão de energia (energy dispersive spectroscopy EDS), propriedades mecânicas e metalúrgicas de juntas soldadas pelos métodos TIG e brasagem em uma liga odontológica à base de Ni-Cr (FIT-CAST SB). As regiões estudadas em cada amostra foram o metal de base (MB), a zona termicamente afetada (ZTA) e a zona de fusão (ZF). Foram confeccionados 40 corpos-de-prova cilíndrico

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