Cold welding

From GAWDAwiki

Cold welding is a solid state welding process that takes place at room temperature under pressure. It causes extreme deformation of the metal being welded.^[1]

Cold welding is accomplished by using extremely high pressures on extremely clean interfacing materials. Sufficiently high pressure can be obtained with simple hand tools when extremely thin materials are being joined. When cold welding heavier sections a press is usually required to exert sufficient pressure to make a successful weld.^[2]

References

1. http://www.substech.com/dokuwiki/doku.php?id=solid_state_welding_ssw#cold_welding_cw
2. http://www.keytometals.com/Article51.htm