Plastic Welding
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Effect of Welding Parameters on Nanostructured Fe-(C, B)-(Cr, Nb) Alloys
New nanostructured Fe-(Nb,Cr)-(C,B) multicomponent alloys have been developed for hardfacing application. They have better wear resistance than traditional Fe-Cr-C alloys. The nano-alpha-Fe, eutectic and hard carboborides phases of the weld metal usually show variations with the welding procedure. 6 test samples with different heat input were welded. It was
Mat. Res.. Publicado em: 20/01/2020
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2. Efeito do metal de adição na resistência ao desgaste por deslizamento de um aço estrutural soldado por GMAW
RESUMO O objetivo do presente trabalho foi avaliar o efeito do metal de adição na soldagem, e das microestruturas resultantes, na resistência ao desgaste de juntas soldadas de um aço estrutural ASTM A242, que possui resistência à corrosão atmosférica e é utilizado na fabricação de vagões destinados ao transporte de minério. As amostras foram sol
Matéria (Rio J.). Publicado em: 16/09/2019
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3. Nickel-Titanium Alloys Welding of Thin Sheets Using GTAW: Comparative Study Between Similar and Dissimilar Welding with AISI 304 Stainless Steel
The objective of the present work was to evaluate welding of thin sheets (thickness < 1 mm) of similar and dissimilar NiTi alloys with AISI 304 stainless steel using the Gas Tungsten Arc Welding (GTAW) process and to study the mechanical and metallurgical properties of the joints with and without post-welding heat treatment (PWHT). The GTAW process was chose
Mat. Res.. Publicado em: 08/11/2018
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4. Friction Stir Welding of AZ31 Magnesium Alloys - A Numerical and Experimental Study
Abstract In this paper, weldability of magnesium alloys by friction stir welding (FSW) method which is difficult to join by the fusion welding have been investigated experimentally and numerically. To this end, the connection of magnesium alloys was performed using different welding parameters. AZ31 Mg-alloy plates were friction stir welded at rotation speed
Lat. Am. j. solids struct.. Publicado em: 2017-01
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5. Evolución Microestructural en Uniones de la Aleación Ti-6Al-4V Mediante el Proceso de Soldadura de Punto por Fricción-agitación
Abstract Friction stir spot welding (FSSW) is a process of recent development and interest, mainly in titanium alloys, since there are previous studies of aluminum alloys, magnesium, steel and polymers. Titanium alloys have a wide range of applications in the aeronautical industry, mainly in the components of commercial aircrafts as landing gear. Therefore,
Soldag. insp.. Publicado em: 2016-06
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6. Resistencia al desgaste de materiales de las orugas de tractores después del proceso de recuperación
This study proposes an alternative for the recovery of the crawler tractor bulldozer worn by the abrasive effect of the soil. To this end, deals with a comparative analysis between the wear resistance of an original track like two caterpillars, recovered by different processes. The first recovery process uses the application of a hairpiece in the region of w
Matéria (Rio J.). Publicado em: 2015-03
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7. Influence of welding parameters and post-weld aging on tensile properties and fracture location of AA2139-T351 friction-stir-welded joints
Tensile properties and fracture location of AA2139-T351 friction stir welded joints are studied in the as-welded and post-weld aged condition. The experimental results show that when the joints are free of welding defects, they fail on the advancing side of the HAZ exhibiting a large amount of plastic deformation. When the revolutionary pitch exceeds a thres
Mat. Res.. Publicado em: 25/06/2013
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8. Laser beam welding tempered 300M ultrahigh mechanical strength steel
AISI 300M ultrahigh strength steel has been used in a number of high demanding applications, such as the VLS Brazilian rocket project. This work intends to propose laser beam welding, with subsequent tempering, as a possible route for the fabrication of engineering pieces of this steel. A 2 kW fiber laser was used to produce welded coupons for metallographic
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-03
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9. Welding of AA1050 aluminum with AISI 304 stainless steel by rotary friction welding process
Abstract: The purpose of this work was to assess the development of solid state joints of dissimilar material AA1050 aluminum and AISI 304 stainless steel, which can be used in pipes of tanks of liquid propellants and other components of the Satellite Launch Vehicle. The joints were obtained by rotary friction welding process (RFW), which combines the heat g
J. Aerosp. Technol. Manag.. Publicado em: 2010-12
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10. Efeito dos materiais do backing bar na geometria e dureza de juntas soldadas por FSW em ligas de alumínio 6013 e 2024
Solid-state joining techniques such as Friction Stir Welding (FSW) are a natural choice to produce weld low heat input, limited slight distortion and low microstructural and mechanical degradation. Great effort has currently been devoted to the joining of Al-Cu-Mg and the Al-Mg-Si alloys because of their high strength, improved formability, and application i
Publicado em: 2009
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11. Comportamento à fratura de defeitos circunferenciais em dutos submarinos instalados por bobinamento
This study aims to evaluate the limit of the fracture instability for submarine pipelines installed by the Reeling Method, determining the maximum allowable ductile tearing for use in analysis of structural integrity through correlations with SENT specimens (Single Edge Notched Tension). The Standard DNV-RP-F108, which gives guidance to testing and analysis
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2009
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12. AVALIAÇÃO DO COMPORTAMENTO ESTRUTURAL DE CONECTORES PERFOBOND E T-PERFOBOND PARA VIGAS MISTAS / ASSESSMENT OF PERFOBOND CONNECTOR BEHAVIOUR FOR COMPOSITE BEAMS
Steel and composite beams have been extensively used in buildings and bridges. The component that assures the shear transfer between the steel profile and the concrete deck, enabling the composite action to develop, is the shear connector. Among the different types of connectors the headed studs, C sections and the Perfobond may be referred. An alternative c
Publicado em: 2009