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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4236985 B1

PDFFull Text
Date of Patent:
Dec. 02, 1980

Filed:

May. 01, 1979

Method for machining works of current-conducting material with

Applicant:
Inventors:

Eduard Y Grodzinsky, Moscow, SU;

Roalda B Isakova, Moscow, SU;

Lidia S Zubatova, Moscow, SU;

Anna T Makonovitskaya, Moscow, SU;

Aron K Grinberg, Moscow, SU;

Assignee:

Other;

Attorney:

Lackenbach, Lilling & Siegel

Primary Examiner:

John H Mack

Assistant Examiner:

D R Valentine

Int. Cl.
CPC ...
B23P / ; B23P / ; C25F / ; C25F / ;
U.S. Cl.
CPC ...
20412943 ; 20412946 ; 204D / ; 219 / ; 219 / ; 219 / ;
Abstract

The invention is applicable to the griding with current-conducting abrasive tools of works of current-conducting churlish materials, such as hard, magnetic and refractory alloys, and to cutter sharpening. The method according to the invention consists in applying voltage pulses to a tool and a work placed in a liquid medium with a conductance of 10.sup.-4 to 2.multidot.10.sup.-2 ohm.sup.-1 .multidot.cm.sup.-1. The process of grinding the work and electric-erosion cleaning the tool is carried out at a pulse duration of 0.5 to 10 msec, pulse repetition frequency of 10 to 500 Hz, and amplitudie of pulses ranging from a minimum of 3 V to a maximum which is below a level required for a breakdown of the liquid medium between the tool and the work. Alternatively, simultaneously with machining the work the electric-erosion truing of the tool is performed with the use of a tool truing electrode. The tool truing electrode and the work are connected to the same pole of a power source. According to an alternative embodiment, the truing electrode is a nozzle intended to direct a liquid medium into the machining zone.

Find Patent Forward Citations

Grodzinsky, Eduard. (1980). Method for machining works of current-conducting material with (U.S. Patent No. 4236985). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4236985

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