Electric spark deposition device

Abstract

The invention discloses an electric spark deposition device. Electromagnetism conducting powder is gathered at the second end of a tool electrode by an annular magnet or long-strip-shaped magnets which are in central symmetry, a flexible tool head is formed, and therefore the electromagnetism conducting powder can adapt to the shape of the inner wall of a long and thin pipe fitting by itself in the electric spark deposition process. In addition, the electric spark deposition device generates stable dynamic contact type discharge on the inner wall of the long and thin pipe fitting in the process that the electric spark deposition device and the inner wall of the long and thin pipe fitting conduct relative movement, and therefore the electric spark deposition device is suitable for conducting deposition on the various inner surfaces with the complex shapes, the distribution of discharge points in the deposition region in the process of the deposition on the inner wall of the long and thin pipe fitting can be more uniform, and the technical problem that due to the facts that in the process that a conventional hard tool electrode conducts discharge deposition on the inner wall of the long and thin pipe fitting, the fluctuation of the force of the contact between the hard tool electrode and the inner wall of the long and thin pipe fitting is high, and the dynamic contact is extremely unstable, an applicable coating cannot be obtained is solved.

Description

technical field [0001] The invention relates to the technical field of surface coating, in particular to an electric spark deposition device. Background technique [0002] Due to the small heat input to the workpiece and the small heat-affected area, the EDM deposition technology makes the workpiece basically no deformation, and the deposition layer and the substrate are metallurgically combined, which has good wear resistance and high temperature resistance. And because of the use of this technology to strengthen the surface of the workpiece, it has the advantages of simple process, low resource consumption, easy operation of equipment, low cost of use, short production cycle, and high significance of energy saving and environmental protection. This technology has developed rapidly in recent years, and has been increasingly widely used in the field of surface strengthening coating manufacturing of parts. [0003] like figure 1 As shown, in the process of discharge deposit...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an electric spark deposition device, which solves the problem of large fluctuations in the contact force between the hard tool electrode and the inner wall of the elongated pipe during the discharge deposition process of the traditional hard tool electrode on the inner wall of the elongated pipe. , the dynamic contact is extremely unstable, resulting in the technical problem that an applicable coating cannot be obtained

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