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What is the difference between plastic welding and fusion welding ?

Question by Rahul Gohil On 23 March 2020, 10:18:28

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Answer by Rahul Gohil On 23 March 2020, 10:19:10

In the plastic welding, also called the pressure welding, the pieces of metal to be joined are heated to a plastic state and then forced together by external pressure whereas in fusion welding, also called the non- pressure welding, the material at the joint is heated to a molten state and allowed to solidify. Former one includes forge welding, resistance welding, thermit welding and gas welding the latter includes gas welding, arc welding and thermit welding without pressure.