Common Features of Welding Processes
All must have: • Sources of Energy
• Most of steels oxidize of 1700 def F and melt at 2700 - 2750 def F
• Source of shielding Due to Oxidation formed by iron & Oxygen combination that must be kept out of the weld
• Iron oxide (rust) is a natural combination.
Filler metal | Optional - Welding without filler metal is autogenous GTAW , PAW, OAW, LBW, EBW
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