Cold Welding
Cold or contact welding is a solid-state welding process in which joining takes place without fusion/heating at the interface of the two parts to be welded. Unlike in the fusion-welding processes, no liquid or molten phase is present in the joint.
Cold welding was first recognized as a general materials phenomenon in the 1940s. It was then discovered that two clean, flat surfaces of similar metal would strongly adhere if brought into contact under vacuum. Newly discovered micro- and nano-scale cold welding has already shown great potential in the latest nanofabrication processes.
Read more about Cold Welding: Applications, In Space, Nanoscale
Famous quotes containing the word cold:
“I’m cold. I’m cold all over. Rub me in father and mother.
Fear was my father, Father Fear.
His look drained the stones.”
—Theodore Roethke (1908–1963)