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...Welders handbook for gas shielded arc welding oxy fuel cutting plasma published by air products plc designed and produced pdf conceptual design marketing copyright rd edition contents introduction fusion why use processes terms mig mag tig sheet plate pipes defects in welds the right data flux cored electrodes safety always conversion inside back cover t joint most widely used proc esses rely on of components fillet at line weld a heat source melts metal to form bridge between two sources are electrode high current butt low voltage supply electric flame blowpipe must be excluded from heated area molten protected atmosphere absorption oxygen nitrogen leads poor quality can replaced which does not contaminate or covered with process is because it large number techniques available no one cost effective universally best each has methods joining its own special attributes matched application suitable thicknesses ranging choosing fractions millimetre requires consideration third metre factor...