Effect of Tool Material and Offset on Friction Stir Welding of Al Alloy to Carbon Steel

2012 ◽  
Vol 445 ◽  
pp. 747-752 ◽  
Author(s):  
Namdar Karimi ◽  
S. Nourouzi ◽  
M. Shakeri ◽  
M. Habibnia ◽  
A. Dehghani
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Carbon Steel ◽  
Feed Rate ◽  
Tool Material ◽  
Butt Joint ◽  
Al Alloy ◽  
Friction Stir ◽  
Tool Offset ◽  
Dissimilar Friction Stir Welding

In this research, effect of tool material and tool offset on tool erosion and metallurgical and mechanical properties of dissimilar friction stir welding of Al alloy to carbon steel are investigated. As the tool erosion is one of the important parameters on the defect-free friction stir welding, especially in butt joint of Al alloy to steel. In present work, different tool material and offset are used in friction stir welding at Al alloy to carbon steel with a constant tool speed and feed rate named as 710 rpm and 28 mm/min respectively. The result of experimental observation is shown better performance by tungsten carbide (WC) tool material with 1 mm offset on Al alloy area.

Effect of Tool Rotation Speed and Feed Rate on Friction Stir Welding of 1100 Aluminum Alloy to Carbon Steel

2012 ◽  
Vol 445 ◽  
pp. 741-746 ◽  
Author(s):  
M. Habibnia ◽  
M. Shakeri ◽  
S. Nourouzi ◽  
Namdar Karimi
Keyword(s):  
Friction Stir Welding ◽  
Carbon Steel ◽  
Feed Rate ◽  
Rotation Speed ◽  
Butt Joint ◽  
Al Alloy ◽  
Dissimilar Metals ◽  
Friction Stir ◽  
Tool Rotation Speed ◽  
Tool Rotation

To achieve a defect-free butt joint of dissimilar metals by friction stir welding procedure, there are some major parameters, such as tool material and geometry, tool rotational speed, feed rate and tilt angel. This research is focused on dissimilar metals welding, namely 1100 Al alloy and 1045 carbon steel. In this paper, the effect of tool rotation speed and feed rate are experimentally investigated on surface appearance, microstructure and micro hardness of the friction stir welded plates. Optimum values of tool rotation speed and feed rate have been achieved experimentally by the quality of the butt joint.

Effect of Tool Material and Offset on Friction Stir Welding of Al Alloy to Carbon Steel

2012 ◽  
Vol 445 ◽  
pp. 747-752
Author(s):  
Namdar Karimi ◽  
S. Nourouzi ◽  
M. Shakeri ◽  
M. Habibnia ◽  
A. Dehghani
Keyword(s):  
Friction Stir Welding ◽  
Carbon Steel ◽  
Tool Material ◽  
Al Alloy ◽  
Friction Stir

scholarly journals Effect of Stirring Pin Rotation Speed on Microstructure and Mechanical Properties of 2A14-T4 Alloy T-Joints Produced by Stationary Shoulder Friction Stir Welding

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 1938
Author(s):  
Haifeng Yang ◽  
Hongyun Zhao ◽  
Xinxin Xu ◽  
Li Zhou ◽  
Huihui Zhao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Rotation Speed ◽  
Weld Nugget ◽  
Al Alloy ◽  
Nugget Zone ◽  
T Joints ◽  
Friction Stir ◽  
Stationary Shoulder ◽  
Microstructure And Mechanical Properties

In this study, 2A14-T4 Al-alloy T-joints were prepared via stationary shoulder friction stir welding (SSFSW) technology where the stirring pin’s rotation speed was set as different values. In combination with the numerical simulation results, the macro-forming, microstructure, and mechanical properties of the joints under different welding conditions were analyzed. The results show that the thermal cycle curves in the SSFSW process are featured by a steep climb and slow decreasing variation trends. As the stirring pin’s rotation speed increased, the grooves on the weld surface became more obvious. The base and rib plates exhibit W- or N-shaped hardness distribution patterns. The hardness of the weld nugget zone (WNZ) was high but was lower than that of the base material. The second weld’s annealing effect contributed to the precipitation and coarsening of the precipitated phase in the first weld nugget zone (WNZ1). The hardness of the heat affect zone (HAZ) in the vicinity of the thermo-mechanically affected zone (TMAZ) dropped to the minimum. As the stirring pin's rotation speed increased, the tensile strengths of the base and rib plates first increased and then dropped. The base and rib plates exhibited ductile and brittle/ductile fracture patterns, respectively.

A study on the effect of cooling on microstructure and mechanical properties of friction stir-welded AA5086 aluminum butt and lap joints

2017 ◽  
Vol 233 (6) ◽  
pp. 1156-1165 ◽  
Author(s):  
Adel Sedaghati ◽  
Hamed Bouzary
Keyword(s):  
Mechanical Properties ◽  
Friction Stir Welding ◽  
Feed Rate ◽  
Rotational Speed ◽  
Lap Joints ◽  
Tensile Behavior ◽  
Water Cooling ◽  
Friction Stir ◽  
Microstructural Behavior ◽  
Constant Feed Rate

In this paper, the effect of water cooling on mechanical properties and microstructure of AA5086 aluminum joints during friction stir welding is investigated. For doing so, the mechanical and microstructural behavior of samples welded both in air and in water was analyzed. Tests were performed involving both butt and lap welds and the results were compared. The effect of rotational speed at constant feed rate of 50 mm/min and changing rotational speed ranging from 250 to 1250 r/min was investigated. The results showed a significant change in the tensile behavior of the butt-welded specimens due to water cooling. In addition, welding was performed at constant spindle speed of 800 r/min and various traverse speeds (25 mm/min to 80 mm/min) to determine the effect of feed rate. The strength increases at first, but then decreases dramatically along with the feed rate which is due to the occurrence of a groove defect. Results showed some generally positive impacts of water cooling which are discussed in terms of tensile results, hardness distributions and microstructure analysis.

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