A recently developed solid-state joining technique called “friction stir spot welding” (FSSW) is used to combine metal alloys with low weldability. Significant experimental work for this study concentrated on the FSSW of AA6063 and AA5083. The involved fixture setup welding pattern parameters sizes material, all which were done a milling machine. cylindrical shoulder concave (10°) square pin pr...

In the present investigation, friction spot extrusion welding was investigated for dissimilar AA2024-T3 and AA5754-O materials, under effect of three different shoulder plunge depths 0.25, 0.35 0.45 mm, keeping other parameters constant. The welded specimens were evaluated by visual inspection, optical microscopy, scanning electron backscattered diffractions, tensile testing. results revealed t...

The solid-state welding method known as friction stir (FSW) bonds two metallic work parts, whether the same or different, by plastically deforming base metal. frictional resistance between both workpieces causes them to produce heat, which produces plastic deformation and welds them. However, weldability strength of FSW joints mainly depend on parameters. This review highlights previous researc...

Abstract This paper presents research into the creation of refill friction stir spot welding (RFSSW) single-lap joints 6082-T6 aluminum alloy and roll-bonded AlCu bimetallic sheet. The latter sheet comprises EN AW-1050A electrolytic copper M1E in Z6 temper condition (after rolling) with a 1:1 ratio Cu:Al layers. parameters involved variable plunge depth time. mechanical properties were determin...

Ultraprecision aspheric cutting process using a monocrystalline diamond tool is widely used in the manufacturing of optical components and their molds/dies. Plastic lenses are molded by injection molding an amorphous electroless Ni-P plated molds/dies decreasing lens surface roughness required. Generally, oblique one methods to decrease force burr, roughness. In this study, was applied mold mat...

The aim of this paper is to offer a novel friction stir welding technique achieve non-thinning and lack kissing bond welds with excellent mechanical properties. In the conventional (CFSW) process, certain size spindle tilting angle shoulder plunge depth were applied in order obtain high-quality welds. However, what was reason for thinning phenomenon weld thus weakening bearing capacity? reducti...

Combining recent techniques giving non-perturbative re-summed estimates of the damping and conservative parts of the two-body dynamics, we describe the transition between the adiabatic phase and the plunge, in coalescing binary black holes with comparable masses moving on quasi-circular orbits. We give initial dynamical data for numerical relativity investigations, with a fraction of an orbit l...

12.7-mm thick plates of 6061-T6511 aluminum alloy and high hardness steel (528 HV) were successfully joined by a friction stir bonding process using a tungsten Process parameter variation experiments, which geometry, plunge and traverse rates, tool offset, spindle tilt, and rotation speed, were conducted to develop a parameter set which yielded a defect free joint. Laboratory tensile tests exhi...