| 21. | "WeldPrint " for arc welding became available in mid-2001.
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| 22. | A full facemask may be required for arc welding.
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| 23. | He supervised the development of automatic submerged arc welding.
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| 24. | Experimental studies on automatic arc welding started in 1934.
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| 25. | In addition, manufacturing technique was also modified, with arc welding replaced the original spot welding.
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| 26. | Other arc welding processes include atomic hydrogen welding, electroslag welding, electrogas welding, and stud arc welding.
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| 27. | Gas tungsten arc welding is most commonly used.
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| 28. | Other arc welding processes include atomic hydrogen welding, electroslag welding, electrogas welding, and stud arc welding.
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| 29. | Nikolay Benardos introduced the arc welding, further developed by Nikolay Slavyanov, Konstantin Khrenov and other Russian engineers.
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| 30. | With conventional arc welding faceshields, you cannot see a thing thru them unless the arc is burning.
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