Topic
Butt welding
About: Butt welding is a research topic. Over the lifetime, 7153 publications have been published within this topic receiving 44467 citations.
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TL;DR: In this article, a gas tungsten arc butt welding of Mg-Al filling with Zn filler metal without and with Al foils in different thicknesses was carried out, where additional Al element was introduced into the fusion zone to accurately modulate microstructure and composition of the welding seam.
59 citations
TL;DR: In this article, the effects of weld parameters on weld quality were systematically studied by first butt welding thermoplastic specimens under controlled conditions, over a wide range of process parameters, and by then determining the strengths and ductilities of these welds by tensile tests.
Abstract: In vibration welding of thermoplastics, frictional work done by vibrating two parts under pressure, along their common interface, is used to generate heat to effect a weld. The main process parameters are the weld frequency, the amplitude of the vibratory motion, the weld pressure, and the weld time or weld penetration.; The effects of these parameters on weld quality were systematically studied by first butt welding thermoplastic specimens under controlled conditions, over a wide range of process parameters, and by then determining the strengths and ductilities of these welds by tensile tests. The three thermoplastics investigated are poly (butylene terephthalate), polyetherimide, and modified polyphenylene oxide. Changes in the weld pressure are shown to have opposite effects on the strengths of polyetherimide and modified polyphenylene oxide welds; Also, the weld frequency is shown to have a significant effect on the weldability of polyetherimide. The weldability data for these three thermoplastics are compared with data for polycarbonate. Under the right conditions, the strengths of butt welds in these materials are shown to equal the strength of the virgin polymer.
58 citations
TL;DR: In this paper, a double-sided butt welding was carried out for the joining of 5A06 aluminum alloys with thickness of 108mm, and sound welds with full penetration were produced.
58 citations
TL;DR: In this article, the critical distance method was used to evaluate the fatigue behavior of magnesium welded joints and compared the findings with Neuber's stress averaging method, which is a material constant.
58 citations
TL;DR: In this paper, a sequentially coupled thermo-mechanical finite element (FE) model incorporating the phase transformation characteristics of the rail material has been used to predict the residual stress distribution developed during welding of AS60 and AS68 rails, by approximating the thermal distribution after upset from the heat-affected zone (HAZ) characteristics.
58 citations