Influence of Friction Stir Processing on Weld Temperature Distribution and Mechanical Properties of TIG-Welded Joint of AA6061 and AA7075
作者： Husain Mehdi , R. S. Mishra
DOI: 10.1007/S12666-020-01994-W
关键词:
摘要: The joining of dissimilar materials is required in many engineering and defense applications, the conventional fusion welding often results defective welds. friction stir has minimized defects, but not completed. This work focuses on effect processing TIG-welded joints with filler ER 5356 to improve mechanical properties joints. In this paper, FSP tool pin rotates an already welded joint by TIG lower load weld quality adjusting parameters processing. After analyzing TIG + FSP-welded joint, computational fluid dynamics-based numerical model was developed predict temperature distribution material flow during TIG + FSP aluminum alloys AA6061 AA7075 ANSYS fluent software. minimum compressive residual stress 18 MPa, maximum tensile strength (281.1 MPa) hardness (107 HV) were located at nugget zone weldment rotation speed 1300 rpm, traverse 30 mm/min tilt angle 2°. predicted peak values region calculated (505 °C) heat flux (2.93 × 106 w/m2) observed a 1300 rpm.
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