| 21. | This accident was caused by illegal welding done counter to regulations,
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| 22. | A carbon dioxide laser cutting and welding system was also included.
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| 23. | Plasma welding has since been developed into gas tungsten arc welding.
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| 24. | Plasma welding has since been developed into gas tungsten arc welding.
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| 25. | However, they are used in power supplies and welding controls.
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| 26. | Magnetic pulse welding ( MPW ) is industrially used since 1967.
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| 27. | In 1948 a hilltop welding accident destroyed many homes and businesses.
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| 28. | Wartime experience would later prove that welding was a sound technique.
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| 29. | Galling and cold welding, therefore, are not mutually exclusive.
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| 30. | In forge welding, the entire welding areas are heated evenly.
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