(under subclass 101) Process in which bonding is effected between the meeting faces of juxtaposed metal parts solely by forcing one meeting face to contact and bear upon the other without the application of adhesive, interface solvent or
other extraneous agent, and without the application of external heat or heat generating material, or the utilization of residual heat from a previous heating step.
(1) Note. The essence of this subclass is bonding by the application of pressure in the absence of heat. Patents recite this phenomenon variously as "cold welding", or "solid phase bonding" and are classified here if they otherwise come within the terms of the definition. Further note that these terms are confused in the art and that the simple naming in disclosure will not necessarily cause placement in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
233.1, for a process of metal fusion bonding at a specific rate of varying pressure or schedule of distinct pressures.
SEE OR SEARCH CLASS
428, Stock Material or Miscellaneous Articles, 940, for metallic stock material made by a process of this subclass.
