Descripción
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Arc welding of Dissimilar Metals:FEM and Experiments. An asymmetrical temperature field is noticed on dissimilar metals welding due to different thermo-physical properties. A slight increase of temperature, and a higher elongation of the heat affected zone and weld pool can be noticed with increasing the welding time. HAZ width of the low carbon steel decreases when moving the welding source closer to copper, and the negative effects induced by the welding process are reduced in this base metal. A material with small conductivity requires a small heat input per unit of weld length, whereas a large conductivity material requires a large heat input per unit of weld length. Increasing the heat input, the bainite formation may occur in HAZ, strongly affecting the mechanical properties of the welded joint. The copper islands visible in the transition area of the low carbon steel leads to a poorer cohesion among the crystal grains in this area. The undesired thermal effects of the welding process on the carbon steel and the related issues can be reduced by an asymmetric positioning (closer to the copper) of the heat source moving along the gap. | |
Internacional
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Si |
Nombre congreso
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8TH INTERNATIONAL CONFERENCE ON TRENDS IN WELDING RESEARCH |
Tipo de participación
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960 |
Lugar del congreso
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PINE MOUNTAIN, GEORGIA (EE.UU.) |
Revisores
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Si |
ISBN o ISSN
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0000000000 |
DOI
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Fecha inicio congreso
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01/06/2008 |
Fecha fin congreso
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06/06/2008 |
Desde la página
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1 |
Hasta la página
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1 |
Título de las actas
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PROC. OF 8TH INTERNATIONAL CONFERENCE ON TRENDS IN WELDING RESEARCH |