The effect of the microstructure heterogeneity on the tensile plastic deformation characteristic of friction-stir-welded (FSW) dual-phase (DP) steel was investigated for the potential applications on the lightweight design of vehicles. Friction-stir-welded specimens with a butt joint configuration were prepared, and quasi-static tensile tests were conducted, to evaluate the tensile properties o...

Surface cracks in butt-welded joints usually occur places with increased stress concentrations. The concentration factor (SCF) can be calculated using an empirical equation, five geometric parameters of a joint (thickness the base material, toe radius, weld angle, width, and reinforcement height). However, industrial environment, it is impractical sometimes even impossible to measure all suffic...

An analysis was made of the application Stud Welding hardware welding technologies depending on welded structures used, duration process, shape stud butt and consumables used. The use CD technology for metalware to thin-sheet panels is substantiated. essence process formation a joint described, which consists in explosive evaporation protrusion at end during discharge capacitor banks, excitatio...

OBJECTIVE To determine the relationship between margin preparation design and resin-composite type on microleakage with or without re-application of surface-penetrating sealant. METHODS Class-I resin-composite restorations were completed for 128 extracted human molars. Half of the margins were beveled, the other half, butt-joint. Half of each group was restored with Filtek-Supreme (FS), the o...

The dissimilar combination of 2.25Cr-1Mo (P22) and modified 9Cr-1Mo (P91) obtained using Gas Tungsten Arc Welding (GTAW) process employing the Ni-based superalloy filler ERNiCr-3 (IN82) ERNiCrMo-3 (IN625) have been investigated for microstructure evolution mechanical properties. butt weld joint was produced single bevel groove geometry. structural integrity welded measured in respect tensile st...

A novel non-keyhole friction stir welding technique was proposed to weld the butt joint of 6061-T6 aluminum alloy with thickness 6 mm. sound obtained by this technique, simultaneously eliminating flash, shoulder mark and keyhole defects. The sleeve directly affected zone (SDAZ) indirectly (SIAZ) were divided into according plunging position hollow sleeve. lack root penetration defect avoided wh...

abstract: friction stir welding, a solid state innovative joining technique, is widely being used for joining aluminium alloys for aerospace, marine automotive and many other applications of commercial importance. fsw trials were carried out using a vertical machining centre (vmc) on aa6061 alloy. the main objective of the present work was to evaluate the weld processing parameter of friction s...

Commercially pure titanium Ti Grade 2, 2 mm in thickness, was welded to thick nickel alloy 201 with electron beam welding. Various welding parameters were used create the butt-welded joints. The innovation herein consists of two dissimilar metals that are declared non-weldable. current for 40–70 mA and speeds 20–50 mm/s. In this experiment, we tested offsets beam, which 100–300 μm side 200 side...