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Definition Of Electroslag Welding And Synonyms Of Electroslag Welding (English)

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definition of electroslag welding and synonyms of electroslag welding (English)

Electroslag welding (ESW) is a highly productive, single pass . The wire and tube then move up along the workpiece while a copper retaining shoe that was put into place before starting (can be water-cooled if desired) is used to keep the weld between the plates that are being welded. Electroslag welding is used mainly to join low carbon steel plates and/or sections that are very thick. It can also be used on structural steel if certain precautions are observed. This process uses a direct current (DC) voltage usually ranging from about 600A and 40-50V, higher currents are needed for thicker materials. Because the arc is extinguished, this is not an arc process.

definition of electroslag welding and synonyms of electroslag welding (English) define welding slag

  History

The process was patented by

However the

  Benefits

Benefits of the process include its high metal deposition rates—it can lay metal at a rate between 15 and 20 kg per hour (35 and 45 lb/h) per electrode—and its ability to weld thick materials. Many welding processes require more than one pass for welding thick workpieces, but often a single pass is sufficient for electroslag welding. The process is also very efficient, since joint preparation and materials handling are minimized while filler metal utilization is high. The process is also safe and clean, with no arc flash and low weld splatter or distortion. Electroslag welding easily lends itself to mechanization, thus reducing the requirement for skilled manual welders.

One electrode is commonly used to make welds on materials with a thickness of 25 to 75 mm (1 to 3 in), and thicker pieces generally require more electrodes. The maximum workpiece thickness that has ever been successfully welded was a 0.91 m (36 in) piece that required the simultaneous use of six electrodes to complete.[]

  References

  Further reading

  • Cary, Howard B. and Scott C. Helzer (2005). Modern Welding Technology. Upper Saddle River, New Jersey: Pearson Education. .
  • Serope Kalpakjan and Steven R. Schmid. Manufacturing Engineering and Technology. Fifth Edition. Upper Saddle River, New Jersey.
  • <Practical Welding Letter></Issue #007>. Feb 29, 2004.
  • <TWI Knowledge Summery>. Written by Owen Gorton. Copyright © 2001, TWI Ltd
definition of electroslag welding and synonyms of electroslag welding (English)

definition of electroslag welding and synonyms of electroslag welding (English) define welding slag

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article sourced from http://dictionary.sensagent.com/electroslag%20welding/en-en/

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