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Previous issue date: 2015-09-02 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Este estudo oferece uma abordagem anal??tica que visa determinar o campo de temperaturas
desenvolvido durante a soldagem TIG DC sobre uma placa fina de Alum??nio.
As caracter??sticas n?ao-lineares do fen?omeno, tais como a depend?encia das propriedades
termof??sicas e mec?anicas do material com a temperatura, s?ao consideradas nesse estudo.
Al?em do processo de troca de calor por condu?c?ao, s?ao levadas em considera?c?ao as trocas
por convec?c?ao natural e radia?c?ao. Uma an?alise transiente foi realizada a fim de se avaliar
o comportamento temporal do campo de temperatura. Tamb?em uma modelagem tridimensional
para a fonte de calor foi discutida. Com a finalidade de validar os resultados
obtidos atrav?es do modelo anal??tico, foi feito o confronto destes com aqueles obtidos experimentalmente
e os dispon??veis na literatura. As respostas anal??ticas obtidas apresentam
uma boa correla?c?ao com as experimentais dispon??veis na literatura, comprovando assim
a viabilidade e efici?encia deste m?etodo anal??tico na simula?c?ao do ciclo t?ermico para este
tipo de soldagem. / This study offers an analytical approach in order to provide a determination of the temperature
field developed during the DC TIG welding of a thin plate of aluminum. The
non-linear characteristics of the phenomenon, such as the dependence of the thermophysical
and mechanical properties with temperature were considered in this study. In addition
to the conductive heat exchange process, were taken into account the exchange by natural
convection and radiation. A transient analysis is performed in order to obtain the temperature
field as a function of time. It is also discussed a three-dimensional modeling of
the heat source. The results obtained from the analytical model were be compared with
the experimental ones and those available in the literature. The analytical results show a
good correlation with the experimental ones available in the literature, thus proving the
feasibility and efficiency of the analytical method for the simulation of the heat cycle for
this welding process.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/20290 |
| Date | 02 September 2015 |
| Creators | Santos, Tadeu F?lix dos |
| Contributors | 08494534882, http://lattes.cnpq.br/3401274958916898, Mendes, Jos? Ubiragi de Lima, 12391085400, http://lattes.cnpq.br/7103009428184656, Souza, Luiz Guilherme Meira de, 25094955420, http://lattes.cnpq.br/0801747108308706, Souza, Roberto Silva de, 44466927472, N?brega, Selma Hissae Shimura da |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA MEC?NICA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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