Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1976-07-14
1978-02-14
Mack, John H.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
20412975, 204DIG9, 204224M, C25F 300, C25F 302, C25D 1712
Patent
active
040737101
ABSTRACT:
A method for etching fine grooves in surfaces by the combination of pulsed currents in a modified E.C.M. (Electro Chemical Machining) method in combination with a flow guiding template.
The method is very suitable for the etching of grooves in a surface used in a bearing.
REFERENCES:
patent: 3532616 (1970-10-01), Garnett
patent: 3562132 (1971-02-01), Godbehere
patent: 3718555 (1973-02-01), Darling et al.
patent: 3748239 (1973-07-01), De Lavalette
Mack John H.
Ultra Centrifuge Nederland N.V.
Valentine D. R.
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