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首页> 外文期刊>Journal of Manufacturing Processes >Torque and force perspectives on particle size and its effect on mechanical property of friction stir welded AA6092/17.5SiC_p-T6 composite joints
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Torque and force perspectives on particle size and its effect on mechanical property of friction stir welded AA6092/17.5SiC_p-T6 composite joints

机译：扭矩和力的大小关系及其对搅拌摩擦焊接AA6092 / 17.5SiC_p-T6复合接头的力学性能的影响

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摘要

Torque and force generated during Friction Stir welding play a major role in determining and controlling the quality of the final weld. This study combines role of torque and force on particle size in the weld zone. AA6092/17.5SiC(p)-T6 composite plates of 6mm thickness are welded at different tool rotational speed (TRS); 1000rpm, 1500rpm and 2000rpm and a fixed traverse speed of 2mm/sec and tilt angle of 2 degrees by using a taper pin tool. Fluctuations in the torque and force values was noticed at 2000 rpm which may be attributed mainly due to the evolution of a discrete stick-slip event at higher heat input and possible tool wear at higher TRS. The result shows a comparatively stable torque and force at 1500rpm. Particle size of 4.03 mu m and 4.99 mu m was observed in nugget zone (NZ) and Thermo-mechanically affected zone (TMAZ) respectively at 1500rpm which is very much smaller than the particles in base material (7.92 mu m). The effect of particle size in the weld zone was investigated in terms of the tensile strength. Better strength and elongation were achieved for the sample that possessed finer size particles among the welded samples.
机译：搅拌摩擦焊接过程中产生的扭矩和力在确定和控制最终焊接的质量中起着重要作用。这项研究结合了扭矩和力对焊接区颗粒大小的作用。以不同的工具转速（TRS）焊接厚度为6mm的AA6092 / 17.5SiC（p）-T6复合板;通过使用锥销工具，可实现1000rpm，1500rpm和2000rpm，以及2mm / sec的固定横移速度和2度的倾斜角。扭矩和力值在2000 rpm时出现波动，这可能主要归因于在较高的热量输入下离散的粘滑现象的发展以及较高的TRS可能造成的工具磨损。结果表明在1500rpm下扭矩和力相对稳定。分别在1500rpm的熔核区（NZ）和热机械影响区（TMAZ）中观察到4.03μm和4.99μm的粒径，这比基材中的颗粒（7.92μm）小得多。根据抗拉强度研究了焊缝区颗粒尺寸的影响。对于在焊接样品中具有更细尺寸颗粒的样品，可以获得更好的强度和伸长率。

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