SU1315182A1 - Electrochemical marking device - Google Patents

Abstract

The invention relates to electrophysical and electrochemical processing methods, in particular, relates to electrochemical marking with a multi-section electrode. The purpose of the invention is to expand the technological capabilities of shaping by simplifying the switching of sections of electrodes. The device contains a multisection electrode holder and a shaping unit in the form of a metal grid placed in a layer of a photoconductive conductive semiconductor material and an optical projection unit with a controlled light source, while a layer of semiconductor material with a metal grid is placed on the non-working side of the electrode. The projection of light radiation onto the layer of photoconductive semiconductor material allows the metal grid to switch with the selected sections of the electrode. 1 il. e S cl with cd eo ND

Description

eleven

The invention relates to electrophysical and electrochemical processing methods, and in particular, to electrochemical processing with multi-section electrodes.

The purpose of the invention is to expand the technological capabilities of shaping by simplifying the colmutation of electrode sections.

In the drawing is a drawing of the device circuit.

Blank 1 is installed on the desktop 2 of the machine. The electrode 3 consists of sections 4, between which there is a dielectric layer 5. From the stand of the non-working surface 6 of the electrode a forming unit is installed.

The forming unit 7 is made in the form of a metal grid (not shown) 5 placed in a layer 8 of a photoconductive semiconductor material. In addition, the shaping unit comprises an optical projection unit consisting of a radiation source 9 with a radiation flow controller, a scanning and scanning unit 10 installed between the radiation source 9 and the program carrier unit 11 with information carrier 12, and information scaling unit 13 located under block programmer. The forming unit 7 and the electrode 5 are installed in the housing 14, which is opaque to the type of radiation used. By the current lead 15, the semiconductor layer 8 is connected to a power source (not shown).

The device works as the next cut.

Workpiece 1 is installed on the work table than 2 machines. In the P block of the program carrier, the information is entered, the information element 12 is installed, made of opaque material used for the type of radiation with transparent sections corresponding to the parts of the workpiece to be processed. Information can also be entered using a software carrier, made in the form of a composit field consisting of separate radiation sources, through their selective switching.

In this case, source 9 is not used.

When the radiation source 9 is turned on, the radiation passes through the block

822

11 program carriers with the carrier 12 information and, if necessary

an information scaling unit 13 allowing resizing of the applied information.

The light flux of the source 9 falls on the layer 8 of the photoconductive semiconductor material.

Radiation dramatically increases the number of current carriers due to the internal photoelectric effect, which leads to a significant increase in electrical conductivity in areas that are exposed to direct radiation compared with shaded areas that are characterized by dark electrical conductivity.

The above electrical conductivity of the semiconductor layer 8 ensures the commutation of the metal grid with the selected section of the electrode 5.

Thus, the illumination of the semiconductor layer 8 makes it possible to control the switching of the sections and form the desired pattern when processing the workpiece 1.

The invention expands the technological capabilities of the device when processing products of various types of dimensions due to good electrical contact between the semiconductor layer and the electrode sections. The use of a scanning fine beam and regulation of the radiation flux allows one to obtain high resolution in multi-electrode processing.

Claims (1)

Invention Formula A device for electrochemical marking, comprising a housing with a multisection electrode with insulated working sections and a forming unit installed on the non-operating side of the electrode, so that, in order to expand technological capabilities, the forming unit made in the form of a metal grid placed in a layer of a photoconductive semiconductor material and an optical projection unit with a controlled light source placed in a housing above the electrode. Editor V.Danko Compiled by R. Melder Tehred A. Kravchuk Order 2242 / 1I Circulation 975 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. A / 5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader M. Pojo