Download or read book Tracking System for Automatic Welding Phase 2 Improvement of Contact Tip Life for Through the Arc Welding System written by and published by . This book was released on 1988 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Phase I of this project, an automatic seam tracking/adaptive control welding system, the M1000, was evaluated and weld-tested using the high heat, pulsed gas metal arc welding process. Phase I concluded with the finding that thru-the-arc seam tracking with computer control and adjustment of welding parameters was a viable technology. Potential savings in welding time would he possible if further development of hardware and computer software were achieved to more fully realize the potential of the system. Needed improvement in consistency of system response to changing conditions in the weld were recognized. It was determined that the most efficient utilization of available funds was support of development of weld head contact tips, which could function over longer periods of continuous welding without need for replacement due to wear. That objective became the primary focus of Phase II, the results of which are the subject of this report. The work reported involved the testing of the best identifiable candidate materials for improving contact-tip life. The material that provided the best results was the Series S, KWMA, Class 3 electrode material. It resulted in continuous running time of 99.8 minutes, significantly better than the 70 minutes minimum that was targeted. Another finding was that contact-tip life can he improved up to 77% by using an adaptive welding power supply which automatically compensates for varying contact-tip conditions.

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Download or read book Real Time Weld Process Monitoring written by Y M Zhang and published by Elsevier. This book was released on 2008-04-17 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Welding is a complex process, is increasingly automated, and operates at higher speeds in more difficult environments. Defects also need to be detected as they arise to ensure efficient, high-quality production. All these needs have led to a growing interest in the use of sensors to provide accurate, robust, real-time monitoring where this cannot be achieved by more traditional testing and inspection techniques. This important book reviews the range of monitoring techniques available and their applications. After an introductory chapter, the first part of the book reviews the range of sensor technologies in welding, from arc and optical sensors to infrared and ultrasonic techniques. Part two discusses the monitoring of particular aspects of welding such as weld seams and profiles, the analysis of weld penetration and weld pool surface, as well as monitoring of resistance and laser welding. With its distinguished editor and international team of contributors, Real-time weld process monitoring is a valuable reference to all those concerned with improving the quality of welding and welded components. Reviews the range of monitoring techniques available Examines the range of sensor technologies in welding from arc and optical sensors to infrared and ultrasonic techniques Discusses the monitoring of specific aspects of welding such as weld seams, resistance and laser welding

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