The current work investigates the viability of utilizing a friction stir deposition (FSD) technique to fabricate continuous multilayer high-performance, metal-based nanoceramic composites. For this purpose, AA2011/nano Al2O3 composites were successfully produced using AA2011 as matrix in two temper conditions (i.e., AA2011-T6 and AA2011-O). matrices without nano addition was also deposited for comparison purposes. process parameters an 800 rpm rod rotation speed 5 mm/min feed rate. Relative...

Bobbin tool friction stir welding (BT-FSW) is characterized by a fully penetrated pin and double-sided shoulder that promote symmetrical solid-state joints. However, control of the processing parameters to obtain defect-free thick lap joints still difficult needs more effort. In this study, BT-FSW process was used produce 10 mm AA1050-H14 similar A newly designed bobbin (BT) with three different geometries (cylindrical, square, triangular) concave shoulders profile designed, manufactured,...

In the current study, a 2 mm thick low-carbon steel sheet (A283M-Grade C) was joined with brass (CuZn40) of 1 thickness using friction stir spot welding (FSSW). Different parameters including rotational speeds 1000, 1250, and 1500 rpm, dwell times 5, 10, 20, 30 s were applied to explore effective range have FSSW joints high load-carrying capacity. The joint quality spot-welded (FSSWed) dissimilar materials evaluated via visual examination, tensile lap shear test, hardness macro-...

In the present study, tribological behavior of 3D printed components manufactured with different raster orientations [0°/90°], [+15°/−75°], [+30°/−60°] and [+45°/−45°] was evaluated. Special attention given to impact orientation on roughness parameters, particularly in mean spacing profile [Formula: see text] arithmetic average text]. Experiments were conducted Polylactic Acid (PLA) using a reciprocated tribometer apparatus under two contact pressures The friction force measured recorded...

Friction stir welding (FSW) as a solid-state process is an excellent candidate for high softening temperature materials welding; however, extending the tool life required to make cost-effective. This work investigates use of pin shoulder ratio (65%) tungsten carbide (WC) friction 5 mm thick 2205 DSS extend this low-cost material. In addition, effect FSW parameters in terms rotational rates, travel speeds, and downward forces on microstructural features mechanical properties welded joints...

In the interest of developing a comprehensive understanding drilling process using hole saw tool, this article aims to build three-dimensional (3D) micromechanical model representing orthogonal cutting CFRP one tooth tool. For purpose, finite element is developed Abaqus Explicit code. The influence various parameters like rake angle, inclination angle and cutting-edge radius on quality explored. Especially, chip formation mechanisms, force lateral damage are analyzed. Through simulations...

Purpose The purpose of this paper is to examine numerically the magnetohydrodynamic (MHD) free convection and thermal radiation heat transfer single walled carbon nanotubes-water nanofluid within T-inverted shaped corrugated cavity comprising porous media including uniform source/sink for solar energy power plants applications. Design/methodology/approach two-dimensional numerical simulation performed by drawing on Comsol Multiphysics program, based finite element process. Findings important...

This paper's goal is to find the impact of incorporation Phase Change Material (PCM) in heat sink for improving cooling performance circular Light Edding Diode (LED). A 3D numerical model using Comsol Multiphysics was created PCM melting process while taking natural convection into account. The ''Paraffin'' inserted central cavity sink. After validation this with previously published works, effect power input on PCM's effectiveness investigated. results found that allowed a reduction...

Water scarcity, energy and demographic difficulties are all real concerns for many countries throughout the world. Due to high solar intensities long sunshine duration in Saudi Arabia, water desalination can be effectively utilized obtaining fresh water. The aim of this paper is explore potential simple-design plentiful rectangular trough under vacuum condition. Numerical analysis heat mass transfer tubular still containing was performed. A 2-D code that solves systems equations mass,...

Light-weight metal matrix composites, especially magnesium-based have recently become more widespread for high-efficiency applications, including aerospace, automobile, defense, and telecommunication industries. The squeeze cast AZ91 base material (AZ91-BM) its composites having 23 vol.% short carbon fibers were fabricated investigated. composite specimens machined normal to the reinforced plane (Composite-N) parallel (Composite-P). All as-casted materials subjected different tests, such as...

Limb disability is a frequent healthcare problem, especially for patients in primary care. Orthotic treatment has become the most common practice either rehabilitation or permanent assistance, due to emergence of 3D scanning and printing technologies. A CAD model rebuilt from captured data key step rapid prototyping process customized orthoses. An accurate robust surface reconstruction technique remains research challenge, aiming well-fitting design patient’s comfort. Thus, this paper...

This paper is intended to ensure adequate thermal management extract and dissipate the heat emitted by a square Light Emitting Diode (LED) guarantee efficient safe operation. Towards this aim, we developed three-dimensional, time-dependent code that uses Comsol Multiphysics solve equation systems for mass, momentum, energy. After validation of model, it used find an inexpensive solution decrease junction temperature LED lamp. The drilling sink in or circular form subject paper. For precise...

In this study, AZ91/23 vol.% short carbon fiber composite was produced by a squeeze casting technique using cylindrical pre-form of treated fibers, in which the fibers are randomly oriented horizontal plane. Cylindrical specimens (height = 9 mm and diameter 6 mm) were machined from as-cast AZ91 matrix its composite. The full behavior studied through test two directions, namely parallel to reinforced plane (in radial direction cast cylinder) normal axial composite). microstructures...

The aim of this paper is to ensure proper thermal management in order remove and dissipate the heat produced by a square Light Emitting Diode (LED), as well stable safe operation reducing junction temperature. For this, we developed three-dimensional code, time-dependent that solves systems equations for mass, momentum, energy using Comsol Multiphysics. After validation numerical 3D performance LED cooling system with three nanofluids such MWCNT-Water, MWCNT-Ethylene Glycol, MWCNT-Engine oil...

The present study is established on a simulation using CFD analysis in COMSOL. Blood acted as the base fluid with this simulation. taken flow been modeled incompressible, unsteady, laminar and Newtonian fluid, which appropriate at high rates of shear. characteristic blood studied order to determine pressure, velocity temperature impact caused by an abdominal aortic aneurysm (AAA). This work employs nanoparticles Iron Oxide (Fe3O4) type. technique utilized evaluate equations mass, momentum,...

An exploration is made to investigate numerically and theoretically the time dependent flow of blood along with heat transfer through abnormal artery having trapezoidal shaped plaque. The taken be Newtonian, laminar, unsteady incompressible. A suitable geometrical model constructed simulate stenosis affected artery. governed 2-dimensional momentum equations are conventionalized by assuming mild stenosis. renovate partial differential further converted into ordinary assist transformations....