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Device and method for preparing high-entropy alloy coating by electric spark deposition

A technology of electric spark deposition and high-entropy alloy, applied in metal material coating process, coating and other directions, can solve the problems of difficult to balance efficiency and deposition quality, high cost of laser cladding technology, and high porosity of thermal spraying technology. The effect of stable EDM deposition process, improving EDM deposition efficiency, and reducing surface thermal stress

Active Publication Date: 2022-08-02
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors found that the cost of laser cladding technology is relatively high; thermal spraying technology has the defect of high porosity; the larger the discharge energy of micro-arc discharge deposition, the higher the deposition efficiency and the worse the coating surface quality, and vice versa, the efficiency and Difficult to balance deposition quality

Method used

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  • Device and method for preparing high-entropy alloy coating by electric spark deposition
  • Device and method for preparing high-entropy alloy coating by electric spark deposition
  • Device and method for preparing high-entropy alloy coating by electric spark deposition

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Embodiment 1

[0040] In a typical embodiment of the present application, such as Figure 1-3 As shown, a device for preparing high-entropy alloy coating by electric spark deposition includes a processing mechanism, a protective gas supply mechanism and a power supply assembly.

[0041] The processing mechanism includes a sealing cover 1, and a two-axis linkage mechanism is fixed inside the sealing cover.

[0042] The two-axis linkage mechanism may use an existing two-axis linkage mechanism, including a first horizontal moving mechanism 2 , and the moving part of the first horizontal moving mechanism is connected with the second horizontal moving mechanism 3 . The second horizontal moving mechanism is vertically arranged with the first horizontal moving mechanism. The moving part of the second horizontal moving mechanism is fixed with a base 20 made of insulating material, the base is used for placing the workpiece, and the two-axis linkage mechanism can output two mutually perpendicular mo...

Embodiment 2

[0061] This embodiment discloses a working method of the device for preparing a high-entropy alloy coating by EDM described in Embodiment 1, which includes the following steps:

[0062] Step 1: Fill the protective gas with the protective gas supply mechanism in the sealing cover, immerse the workpiece to be processed in the protective gas and place it on the insulating base, install the tool electrode and piezoelectric actuator on the machine tool spindle, and align the workpiece with the protective gas. Connect the negative pole of the power supply assembly, connect the tool electrode to the positive pole of the power supply component, open the gas cylinder, pressure regulating valve, and rotary vane vacuum pump to complete the preparation for processing.

[0063] Step 2: Start the power system and power supply components of the machine tool spindle. The power supply components apply pulses between the tool electrode and the workpiece, and use the charge and discharge signals ...

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Abstract

The invention relates to a device and method for preparing high-entropy alloy coating by electric spark deposition, comprising: a processing mechanism: including a sealing cover, a two-axis linkage mechanism capable of placing workpieces is arranged in the sealing cover, and one side of the two-axis linkage mechanism is provided with a two-axis linkage mechanism. Vertical lifting mechanism, the vertical lifting mechanism is connected with the power system, the power system is connected with the main shaft, and the main shaft is connected with the tool electrode through the piezoelectric actuator; the protective gas supply mechanism: connected with the sealing cover through the pipeline, which is installed on the pipeline There are voltage regulating parts and power supply components: the positive electrode is used to connect with the tool electrode, and the negative electrode is used to connect with the workpiece, and the coating quality prepared by the device of the present invention is good.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a device and method for preparing a high-entropy alloy coating by electric spark deposition. Background technique [0002] The statements herein merely provide background related to the present invention and do not necessarily constitute prior art. [0003] The principle of EDM technology is an additive manufacturing technology that uses the spark discharge between the tool electrode and the workpiece in the pulse circuit to melt the tool electrode material and deposit it on the workpiece. The tool electrode is connected to the positive pole of the pulse power supply, the workpiece is connected to the negative pole of the pulse power supply, and the tool electrode and the workpiece are gradually approached. When the electric field strength between the tool electrode and the workpiece reaches the breakdown strength, a spark discharge occurs, and the molten ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C26/02
CPCC23C26/02
Inventor 王侃许祥宇何欣璐刘勇
Owner SHANDONG UNIV