US PATENT SUBCLASS 156 / 73.5
.~.~ Friction treatment (e.g., welding)

Current as of: June, 1999
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156 /   HD   ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE

1  DF  METHODS {7}
60  DF  .~ Surface bonding and/or assembly therefor {93}
73.5.~.~ Friction treatment (e.g., welding)

DEFINITION

Classification: 156/73.5

(under subclass 60) Processes including a step of generating heat to effect bonding by either rapid relative motion of the contacting faces of the laminae or by the rapid relative motion of a separate part contacting the laminae.

SEE OR SEARCH CLASS

29, Metal Working,

470.3, for processes of welding metal by friction.