Plasma and pulse discharge composite polishing processing device for large complex metal surfaces

Abstract

The invention relates to a plasma and pulse discharge composite polishing device for a large-scale complicated metal surface. The plasma and pulse discharge composite polishing device for the large-scale complicated metal surface aims to solve the problems that according to a conventional metal surface precise polishing method, the polishing efficiency is low, machining stress is prone to generation, and the surface is prone to damage are solved. The plasma and pulse discharge composite polishing device comprises a radio frequency power supply, a radio frequency power supply adapter, a high-voltage direct-current pulse power supply, a pulse power supply polarity adjusting device, a high-voltage direct-current pulse power supply impedor, a plasma torch, a polishing protective cover, a control circuit and a linkage mechanism. According to the plasma and pulse discharge composite polishing device for the large-scale complicated metal surface, precise machining and polishing are conducted on the metal surface at the atmosphere pressure, a vacuum chamber and a special polishing solution are not needed, equipment cost can be reduced, the application range is widened, the machining efficiency is several times as high as that of a traditional polishing method, unstressed machining is conducted, surface damage and subsurface damage are avoided, surface pollution is avoided, and the surface roughness of a polished workpiece can reach Ra0.2 micrometer.

Description

technical field [0001] The invention belongs to the technical field of non-contact metal surface processing, and in particular relates to a large complex metal surface plasma and pulse discharge combined polishing processing device, which can realize precise polishing and processing of metal surfaces under atmospheric pressure conditions. Background technique [0002] Surface polishing of metal materials can be divided into contact type and non-contact type. Contact polishing is mainly manual direct grinding and polishing and machining grinding and polishing. These traditional mechanical polishing methods, together with the later developed mechanical-chemical composite polishing, diamond ultra-precision cutting and polishing, etc., all have various disadvantages of traditional contact polishing. Defects will inevitably cause damage to the surface structure of the material, form microcracks, destroy the integrity of the material lattice, and affect the surface quality of the ...

AI Technical Summary

Problems solved by technology

However, the environmental support (requires high vacuum) and low processing efficiency, expensive equipment, and harmful radiation and toxic reaction gases that these technologies require also limit their scope of use.

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