The purpose of this study was to develop a high-efficiency and low-heat-input CO2 arc-welding process using hot-wire feeding. A previous paper showed that the proposed has potential simultaneously achieve both high efficiency low heat input. This investigated production sound joint with only two welding passes on butt 20mm-thick steel plates no defects or unstable phenomena developed process. W...

In fact, in the welding process, there are many problems that arise. Such as cracking caused by excessive stress Residual can result a decrease mechanical properties of material such brittle fracture, fatigue, and cracking. The purpose this study was to determine comparison tensile strength ASTM plate welded joints A36 with variations single vee butt bevel knowing effects ofpost-weldd heat trea...

The joining of a 6-mm thickness Al 6061 to AISI 1018 steel has been performed by the combined effects of fusion and solid state welding. The process is derived from friction stir welding (FSW) but with an adjustable offset of the probe location with respect to the butt line. Metallographic studies by optical microscopy, electron probe microscopy, and the utilization of the X-ray diffraction tec...

This paper presents a study on optimization of process parameters using genetic algorithm to minimize angular distortion in 202 grade stainless steel gas tungsten arc welded plates. Angular distortion is a major problem and most pronounced among different types of distortion in butt welded plates. The extent of distortion depends on the welding process control parameters. The important process ...

Friction stir welding (FSW) is a relatively new welding process that may have significant advantages compared to the fusion processes as follow: joining of conventionally non-fusion weldable alloys, reduced distortion and improved mechanical properties of weldable alloys joints due to the pure solid-state joining of metals. In this paper, a three-dimensional model based on finite element analys...

AA 6061 has gathered wide acceptance in the fabrication of the light structures required to high strength. Compared to the fusion welding processes that are used for joining structural aluminium alloys, friction stir welding (FSW) process is an emerging solid state joining process in which the material that is being welded does not melt and recast. In this experimental work, an extensive invest...