The body of the grinding wheel, electrode of the grinding process and device for correcting electrochemically a conductive piece with such a grinding tool electrode

摘要

Body of the grinding tool electrode subject-matter of the grinding is essentially of abrasive grains conductors linked together with a matrix essentially not conductive. / p & & p & according to the invention, the abrasive grains are mixtures with a quantity of 10 to 30 by volume of the matrix and sintered assembly so as to form the body of the electrode, homogenous porous, having a specific resistivity upper has 100ohm - cm, then from 0,1 and 10ohm - cm. / p & & p & the invention provides a device comprising a current source 6 to pass a current through an interface defined between the workpiece to be machined, 3 and the grinding wheel rotating electrode 4 and of the control means 2 in order to move the workpiece through the grinding wheel along a rectilinear path predetermined.