METHOD OF PRODUCING A SURFACE WITH ALTERNATING RIDGES AND DEPRESSIONS AND A TOOL FOR CARRYING OUT THE SAID METHOD

WIPO Patent Application WO1994025217

A3

Proposed is a method of machining and a tool (1) to be used for obtaining patterns (4) in the form of alternating ridges (12), pads, cells and ridges of triangular cross section on the surface of a blank (15). The method proposed facilitates selection of the geometrical parameters of the tool (1) and the machining mode to obtain projections (12) at predetermined intervals and of predetermined height and angle of slope. The width of the spaces between projections can be varied between units of millimetres and units of micrometres. The method produces no waste and is highly efficient, requires only simple equipment and can be used to obtain efficient heat exchanging and evaporating surfaces, produce capillary-porous structures in thermal pipes and fine slit filters, obtain thick composite layers on the surfaces of components, machine threads, or treat surfaces undergoing plasma spraying, glueing, or diffusing welding. The invention can be used in general machine building and in power-generation, chemical, refrigeration and cryogenic engineering.

ZUBKOV NIKOLAI NIKOLAEVICH (RU)
OVCHINNIKOV ALEXANDR IVANOVICH (RU)

PCT/RU1994/000121

December 22, 1994

April 27, 1994

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ZUBKOV NIKOLAI NIKOLAEVICH (RU)
OVCHINNIKOV ALEXANDR IVANOVICH (RU)

B21C37/20; B23B1/00; B23B5/00; B23B27/00; B23C3/00; B23P15/26; F28F1/26; F28F1/36; F28F3/04; F28F13/18; F28F19/06; (IPC1-7): B23P/

SU1558556A1	1990-04-23
SU1625586A1	1991-02-07
SU63550A1	1943-11-30
SU78560A1	1949-11-30
SU1662766A1	1991-07-15
SU1764834A1	1992-09-30
SU1764835A1	1992-09-30
SU1683869A1	1991-10-15
US3665573A	1972-05-30
US3781959A	1974-01-01
US3791003A	1974-02-12
US3866286A	1975-02-18
US3947941A	1976-04-06

See also references of EP 0727269A4

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