SU1129044A1 - Electrode tool - Google Patents

Abstract

ELBKTROD-SHSTRUMENT for machining grooves, containing a shape-forming element, the cross section of which is similar to the cross-section of the groove to be machined, characterized in that, in order to obtain grooves with a 1 од inner | insulated and aligned with the contour of the shaping element, with conductive fins arranged in the corners of adjacent surfaces to form the undercut grooves.

Description

The invention relates to the field of dimensional electrochemical processing ^- and, in particular, to electrochemical processing of grooves.

Known electrode tool for electrochemical grooving, containing a forming element, the cross section of which is similar to the cross section of the groove being machined £ 1].

The disadvantage of the electrode is that when they are used in dimensional electrochemical machining of grooved and slotted surfaces, radial roundings are formed at the places where the treated surfaces transition into each other, which in many cases is unacceptable.

In addition, this electrode-tool cannot be performed at the points of transition of the machined surfaces of the groove or slot into the undercut grooves, which are necessary for further processing of these surfaces by grinding to exit the edges of the grinding wheel.

The purpose of the invention is the receipt of grooves with undercut grooves.

This goal is achieved by the fact that the electrode-tool for electrochemical processing of grooves containing a forming element, • the cross section of which is similar to the cross section of the machined pAZ, has an additional element at its upper end, outer rails, designed to form undercut grooves.

In FIG. 1 shows the proposed electrode tool, in FIG. 2 5 is a special case of the execution of the electrode, in FIG. 3 is a diagram of electrochemical pulling with an electrode-tool.

The electrode tool has a working element 1 and 10 side 1 surface. An additional element is placed at the upper end of the forming element, the surfaces of which 3 and 4 are aligned with. the contour of the forming element 15 and covered with insulators 5 and 6. In the corners of adjacent surfaces left uninsulated ribs 7.

The inclination angles γ and £ of the surfaces of the additional element can be 20 smaller than the inclination angles οί and β of the corresponding surfaces of the forming element. In the particular case, these angles can be equal to or equal to zero;

The operation of the electrode tool is as follows.

The electrolyte supply, the source of the technological current, and the working supply of the electrode-tool are turned on. In this case, the groove is formed by the forming element, and the undercutting grooves 8 are formed by the ribs 7. A stable process is achieved due to the fact that the surfaces of the additional elevosurface are aligned with the contour of the forming element, these surfaces are insulated and non-insulated edges are installed in the corners of adjacent surfaces directly adjacent to the corresponding surfaces of the forming element, creating favorable hydrodynamic conditions Ania electrolyte.

VNIIIPI Order 9286/10

Circulation 1036 Subscription

Branch PIP Patent,

Uzhhorod, st. Project, 4

Claims (1)

ELECTRODE-TOOL for; groove processing, comprising a forming element, the cross section of which is similar to the cross section of the groove being machined, characterized in that “for the purpose of producing grooves with undercut grooves”, an additional element is placed at its upper end, the outer surfaces of which are insulated and aligned with the contour forming element, and in the corners of adjacent surfaces are conductive ribs designed to form undercut grooves.