نتایج جستجو برای: frictional stir welding
تعداد نتایج: 25306 فیلتر نتایج به سال:
The present study was carried out to evaluate how the friction stir spot welding (FSSW) process parameters affect the temperature distribution in the welding region, the welding forces and the mechanical properties of the joints. The experimental study was performed by means of a CNC machine tool obtaining FSSW lap joints on AA7050 aluminum alloy plates. Three thermocouples were inserted into t...
In this study, the effect of toolchr('39')s advance velocity on the mechanical behavior of the Al-7075 alloy during friction stir welding was simulated. In this simulation, the Lagrangian method with rigid-Visco-plastic material was used. The results of the process temperature obtained by the simulation method were verified by the experimental welding test. Using the characteristic stress, stra...
In this paper, an adaptive torque controller for friction stir welding (FSW) that can estimate parameters such as probe radius which may be changing throughout the welding process is presented. Implementing an adaptive controller with this capability would be of interest to industry sectors in which FSW is performed on high melting point alloys or metal matrix composites (MMC). Welding these ma...
Friction stir welding (FSW) was conducted on AISI 304 austenitic stainless steel plate with 2 mm thickness. The FSW was performed at a welding and rotational speeds of 50 mm/min and 400 rpm, respectively. Microstructure observations by the optical microscopy showed that a severe grain refinement occurred in the stir zone (SZ). Electron backscattered diffraction analysis (EBSD) results indicated...
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