Method of producing heat pipe

Details Method of producing heat pipe Method of producing heat pipe

1983-09-14

1985-09-17

Goldberg, Howard N.

Metal deforming

By use of tool acting during relative rotation between tool...

Tool orbiting or rotating about an axis

72370, 16510426, 291573H, 291573AH, B23P 1526

Patent

active

045412618

ABSTRACT:
A heat pipe is provided with a multiplicity of longitudinal deep grooves and ridges formed in the inner peripheral surface thereof. A plurality of shallow grooves are formed by a plastic work in the top surfaces of the longitudinal ridges separating the deep grooves. Parts of burrs formed as a result of the plastic work for forming the shallow grooves are extended over the deep groove so as to form bridges connecting adjacent ridges over the deep grooves.

REFERENCES:
patent: 4004441 (1977-01-01), Lezak

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