Title: What is Cold Welding? - Welding Headquarters
Headings: What is Cold Welding?
What is Cold Welding?
How do we join metals without heat?
History of cold welding
Limitations of cold welding
Advantages of cold welding
No other metal welding option can weld together aluminum 2xxx and 7xxx material series.
Applications of cold welding
Is cold welding strong?
Summary
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Content: Cold welding, using the energy generated through free ions and electrons, is the living proof of how welding can be done without thermal energy. Cold welding demonstrates a real-time example of how welding can be done without the need for thermal energy. Cold welding, which is also popularly known as contact welding or cold pressure welding, makes use of pressure to join and diffuse the atoms for two materials together. This process is scientifically acclaimed and is known as solid-state diffusion in the science circles. It is scientifically possible to weld two pieces of metal together using the forces of pressure. When you press two metal surfaces or materials against each other, they generally wouldn’t weld together. Regardless of the force you apply to the materials, the pressure solely wouldn’t help in creating a weld. This hindrance is particularly faced due to the additional oxide layer present on the surface of both these materials. This oxide layer works as a barrier, preventing the layers to be attached together just through the application of pressure. Since welding is most frequently practiced on metals, let us take up their example.