Laser welding of steels for power plant |
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| Authors: | R A Willgoss J H P C Megaw J N Clark |
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| Institution: | 1. RAW and JNC are at the Central Electricity Generating Board, Marchwood Engineering Labs, Marchwood, Southampton, SO4 4ZB, UK;2. JHPCM is at UKAEA Culham Laboratory, Abingdon, Oxon, UK |
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| Abstract: | Many welding applications in CEGB power plant involve components with wall thicknesses in the range 2–10 mm. Therefore, an investigation into the feasibility of laser welding types 316, 310 and DUCOL W30 steels in 6 mm thick plate has been made, the materials being typical of those used in CEGB power plant.The welds were made using the high power, transverse flow, CO2 laser based at UKAEA Culham Laboratory. The laser welding process used has been compared with TIG (tungsten inert gas), plasma and electron beam using capital cost, power requirement, ease of handling and distortion in workpieces as the criteria for comparison. Possible applications of laser welding to power plant manufacture are discussed. |
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