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An integrated additive repair and remanufacturing method of EDM deposition-remelting and rolling

A technology of EDM deposition and remanufacturing, which is applied in the direction of metal material coating process, coating, etc., can solve the problems that affect the development and application of EDM deposition technology, the quality is difficult to control, and the deposition efficiency is low, so as to achieve excellent processing surface and eliminate Protruding parts on the surface, the effect of improving the surface quality

Active Publication Date: 2020-02-21
ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, EDM deposition is mostly manual operation, with low deposition efficiency, internal cracks and pores in the deposited layer, difficult quality control, uneven thickness and other problems, which affect the development and application of EDM deposition technology.
[0004] As far as the applicant knows, in the current discharge deposition technology, there is no report on the method of using the same system to remelt and roll the EDM deposition layer to eliminate the problems and defects in the deposition layer and improve the quality of the generated coating

Method used

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  • An integrated additive repair and remanufacturing method of EDM deposition-remelting and rolling
  • An integrated additive repair and remanufacturing method of EDM deposition-remelting and rolling
  • An integrated additive repair and remanufacturing method of EDM deposition-remelting and rolling

Examples

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Embodiment 1

[0027] An integrated additive repair and remanufacturing method of electric spark deposition-remelting and rolling for rotating cluster electrodes, comprising the following steps:

[0028] First, place the part in the fixed cluster electrode EDM system and connect the power supply between the cluster electrode and the surface of the part;

[0029] Secondly, conduct discharge deposition: in a protective atmosphere (such as argon), a breakdown discharge is generated between the two electrodes, and the cluster electrodes and part materials in the discharge area are heated and melted, and melted and melted under the action of electromagnetic force, centrifugal force, gravity, etc. The cluster electrode material is transitionally deposited on the surface of the part, and metallurgically combined with the surface material of the part to form an alloy layer;

[0030] Third, carry out remelting and rolling of the deposited layer: through the method of exchanging the processing polarit...

Embodiment 2

[0033] An integrated additive repair and remanufacturing method of electric spark deposition-remelting and rolling for fixed parts with fixed cluster electrodes, comprising the following steps:

[0034] First, place the part in the fixed cluster electrode EDM system and connect the power supply between the cluster electrode and the surface of the part;

[0035] Secondly, carry out discharge deposition: in a protective atmosphere (such as argon), accurately control the distance between the two poles to generate a breakdown discharge between the two poles, heat and melt the cluster electrodes and part materials in the discharge area, under electromagnetic force, centrifugal force, gravity, etc. Under the action of the melting and melting cluster electrode material transition deposition to the surface of the part, and metallurgically bonded with the surface material of the part to form an alloy layer;

[0036] Thirdly, carry out remelting and rolling of the deposited layer. Under...

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Abstract

The invention provides an additional material repair and remanufacture method with integration of electric spark deposition and remelting and rolling. The method includes the following steps: a step of electric spark deposition, namely a step of separately connecting a cluster electrode and the surface of a component to a direct-current power source; generating electric spark discharge between thecluster electrode and the surface of the component to make electric heat generated by the discharge melt the cluster electrode and the component material in a discharge region; performing transitiondeposition of the molten cluster electrode material onto the surface of the component; and generating metallurgical bonding to the surface material of the component to form a deposition layer; and a remelting and rolling step: namely a step of changing the power supply polarity of the cluster electrode and the surface of the component; melting the deposition layer by using electric heat generatedby the discharge between the cluster electrode and the surface of the component; and rolling the molten deposition layer by using the cluster electrode at the same time. The method can enable the quality of the deposition layer to be improved.

Description

technical field [0001] The invention relates to the field of electric spark deposition, in particular to an integrated additive repair and remanufacturing method of electric spark deposition-remelting and rolling. Background technique [0002] Electrospark deposition technology is an important process in surface engineering technology. It uses the electric energy stored in the power supply to make the rotating cluster electrode generate high-frequency spark discharge at the moment of contact with the part, and generate a high temperature above 10000 ° C in the discharge area. As the deposition material, the cluster electrode melts, and the deposition transitions to the surface of the part to form an alloyed surface covering layer, forming a deposition layer, thereby obtaining a special coating, improving the surface performance of the part or realizing the repair and remanufacturing of the damaged part, etc. The working principle of EDM is as follows: figure 1 shown. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C26/02C23C24/10
CPCC23C24/10C23C26/02
Inventor 王晓明朱胜徐安阳赵阳韩国峰周超极陈永星邱六张雨豪任智强杨磊
Owner ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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