Topic
Rotational speed
About: Rotational speed is a research topic. Over the lifetime, 23327 publications have been published within this topic receiving 151696 citations. The topic is also known as: speed of revolution & revolution rate.
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TL;DR: In this paper, the effect of FSW parameters such as tool rotational speed, welding speed and tool tilt angle on the mechanical properties of yield strength and% of elongation of friction stir welded dissimilar AA5083 and AA6061 aluminium alloy was studied.
35 citations
TL;DR: In this article, the effect of the welding speed on the joint efficiency was investigated in detail, and it has been clarified that at a rotational speed of 600 rpm, the friction stir welding of 304 austenitic stainless steel is possible up to the joining speed of 1200 mm/min, and the tensile strength of the joint exceeds that of the parent material in terms of tensile force up to 1150 mm /min.
Abstract: Although several studies on the friction stir welding of high temperature materials have recently been reported, their practical use has not yet occurred due to some problems to be solved such as decreases in the corrosion resistance and joint efficiency during a high-speed joining. In this study, the effect of the welding speed on the joint efficiency was investigated in detail. As a result, it has been clarified that at a rotational speed of 600 rpm, the friction stir welding of 304 austenitic stainless steel is possible up to the joining speed of 1200 mm/min, and the tensile strength of the joint exceeds that of the parent material up to the joining speed of 1150 mm/min. In addition, the corrosion resistance is significantly improved at the higher welding speeds. No rust was observed during the salt spray testing of the 1000 mm/min joint. Thus, an increase in the welding speed can improve productivity and the product quality by decreasing corroded region. These results are expected to extend to an actual application to products by further improving the technology.
35 citations
TL;DR: A Linear-ADRC (LADRC) with the torque compensation is implemented to the speed control loop of a VS-MHP, which is tested under a real-time power Hardware-In-the-Loop benchmark and results prove its advantages for VS- MHP applications.
35 citations
TL;DR: In this article, the influence of the FSW processing parameters (tool geometry, rotational speed, and welding speed) on the wear characteristics of the welded joint of the considered hybrid aluminum matrix composite under dry sliding conditions was investigated.
Abstract: In the present work, the aluminum matrix composites reinforced with both SiC and graphite particles are joined using a friction stir welding (FSW) process. The wear characteristics of the welded joints were investigated at constant load of 50 N and a rotational speed of 1,000 rpm using a pin-on-disk wear testing apparatus. This study focuses on the influences of the FSW processing parameters (tool geometry, rotational speed, and welding speed) on the wear characteristics of the welded joint of the considered hybrid aluminum matrix composite under dry sliding conditions. The experimental results indicate that the wear resistance of the joint increases at high welding speeds (>45 mm/min) and/or low value of rotational speeds. Different tool pin profiles (square, octagonal, and hexagonal) are developed to perform the welding process, and the effects of the tool pin profile on the weldments were studied. It is found that joints welded with square pin profile have better wear resistance compared to the other p...
35 citations
TL;DR: In this paper, the authors investigated the mixing kinetics and flow patterns of non-cohesive, monodisperse, spherical particles in a horizontal paddle blender using experiments, statistical analysis and discrete element method (DEM).
35 citations