Title: What is Cold Welding? - Definition from Corrosionpedia
Headings: Cold Welding
Cold Welding
Definition - What does Cold Welding mean?
Corrosionpedia explains Cold Welding
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Content: This disrupts the barriers of the oxide layers on the interface, and brings about an enduring adhesion between the two surfaces. Unlike the conventional welding process, there is no application of severe heat or melting of the material at the interface. Both the surfaces continue to remain in solid phase throughout this forced adhesion process. The necessary force for the adhesion is applied through mechanical rolls and dies. Cold welding is also known as contact welding. Corrosionpedia explains Cold Welding
When two surfaces without an interposing oxide layer are brought together, the similar atoms of either side collapse into each other. Cold welding as a joining technique has some limitations. The joint can fail in a reactive environment or a high oxygen environment. It is suitable for buried pipes and for components deployed in spaces where there is no risk of oxygen contact. For the cold welding to be effective, the surfaces need to be brushed and cleaned effectively.