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首页> 美国政府科技报告 >Evaluation of The Usability and Benefits of Twist Wire GMAW and FACW Narrow Gap Welding.
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Evaluation of The Usability and Benefits of Twist Wire GMAW and FACW Narrow Gap Welding.

机译：评估绞合线GmaW和FaCW窄间隙焊接的可用性和优点。

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Butt welding of thick plates with narrow gap fit-ups in lieu of conventional U-groove and V-bevel angles is recognized as one approach to reducing the time and cost of welding in shipbuilding. The use of multiple twisted filler wires as electrodes is found to overcome some of the problems of lack of side wall fusion and slag entrapment associated with single wire arc welding of narrow gap butt welds. To date there are numerous articles written which show a tremendous potential cost savings of various narrow gap welding processes including twist wire welding. These articles very adequately address other important productivity factors such as a comparison of reduced joint geometry, arc time, deposition rate and mechanical properties. No attempt is made in this report to verify or duplicate these issues.

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