Development of a heat source model for friction stir welding tools considering probe geometry and tool/workpiece interface conditions

Yang, Zebin; Wang, Yulin; Domblesky, Joseph P.; Li, Wupeng; Han, Jingtao

doi:10.1007/s00170-021-06985-9

Cited by 9 publications

(2 citation statements)

References 20 publications

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“…Yang et al [11] used FLUENT to establish a simulation model for friction stir lap welding of dissimilar materials of Q235 steel and 6061 aluminum alloy, and studied the in uence of different welding process parameters on the temperature distribution. Su et al [12] and Yang et al [13] established FSW simulation models of different stir pin shapes based on CFD method, and studied the effects of stir pin shape, shoulder radius, rotational speed and welding speed on temperature distribution in the welding process. The simulation method based on CFD has no strict restriction on the mesh size, but it cannot simulate the plunging and dwelling phase and the tool withdrawal phase, only the welding phase.…”

Section: Introductionmentioning

confidence: 99%

Welding parameters optimization during plunging and dwelling phase of FSW 2219 aluminum alloy thick plate

Lü

Qiao

Qian

et al. 2022

Int J Adv Manuf Technol

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The in uence of welding parameters on temperature distribution in plunging and dwelling phase of friction stir welding (FSW) medium thickness 2219 aluminum alloy is blank. Improper selection of welding parameters will result in uneven temperature distribution along the thickness of the weldment, which will lead to welding defects and ultimately affect the mechanical properties of the weldment. To realize the prediction of temperature distribution and achieve the optimization of welding parameters, a simulation model of FSW 18mm thick 2219 aluminum alloy is built based on DEFORM. The validity of the simulation model is veri ed by temperature measurement experiments. With the minimum temperature difference in the core area of the weldment as target value, and weldable temperature range of 2219 aluminum alloy as constraint conditions, orthogonal experiments are conducted considering the rotational speed, the press amount, the tool tilt angle, the plunging traverse speed and the dwelling time.The results of variance analysis show that the rotational speed and the dwelling time are signi cant factors affecting temperature eld during plunging and dwelling phase. Through single factor simulation, the welding parameters in plunging and dwelling phase are optimized. This study provides a reference for realizing high-quality welding of a heavy rocket fuel tank.

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Section: Introductionmentioning

confidence: 99%

Welding parameters optimization during plunging and dwelling phase of FSW 2219 aluminum alloy thick plate

Lü

Qiao

Qian

et al. 2022

Int J Adv Manuf Technol

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“…Not only the length of the probe, but also other additional features, such as type of thread or pattern of probe, are required to be modified to break the oxide line in the SZ. Therefore, variations of probe profile and geometry, such as triangular (TR), square (SQ), pentagon (PEN), and hexagon (HEX) have been used to improve the quality of the joint by intensifying the stir and breaking of the oxide layer in SZ [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Tool Probe Profiles on Material Flow of Al–Mg–Cu Alloy Joined by Friction Stir Welding

et al. 2021

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Friction Stir Welding (FSW) was utilized to butt−join 2024–T4 aluminum alloy plates of 1.9 mm thickness, using tools with conical and tapered hexagonal probe profiles. The characteristic effects of FSW using tools with tapered hexagonal probe profiles include an increase in the heat input and a significant modification of material flow, which have a positive effect on the metallurgical characteristics and mechanical performance of the weld. The differences in mechanical properties were interpreted through macrostructural changes and mechanical properties of the welded joints, which were supported by numerical simulation results on temperature distribution and material flow. The material flow resulting from the tapered hexagonal probe was more complicated than that of the conical probe. If in the first case, the dynamic viscosity and strain rate are homogeneously distributed around the probe, but in the case of the tapered hexagonal probe tool, the zones with maximum values of strain rates and minimum values of dynamic viscosity are located along the six tapered edges of the probe.

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Experimental and computational analyses of material flow characteristics in friction stir welding

Kumar

Lal

Bharti

et al. 2021

Int J Adv Manuf Technol

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Development of a heat source model for friction stir welding tools considering probe geometry and tool/workpiece interface conditions

Cited by 9 publications

References 20 publications

Welding parameters optimization during plunging and dwelling phase of FSW 2219 aluminum alloy thick plate

Welding parameters optimization during plunging and dwelling phase of FSW 2219 aluminum alloy thick plate

Effect of Different Tool Probe Profiles on Material Flow of Al–Mg–Cu Alloy Joined by Friction Stir Welding

Experimental and computational analyses of material flow characteristics in friction stir welding

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