Airflow-assisted device for improving the quality of EDM composite perforation

Abstract

The invention discloses a device for improving the quality of EDM-electrolytic composite perforation processing with airflow assistance, and belongs to the technical field of micro-hole processing. The device includes the machine tool slider (03), the air intake shell (08) and the flow divider (10) from top to bottom; the device also includes the guide (02), the air intake plug (06) and the tube electrode ( 01); the guide (02) is installed and fixed in the installation hole of the machine tool slider (03), and the lower end of the guide (02) extends into the air intake shell (08); the above air intake plug (06) is installed On the upper part of the air intake shell (08), it communicates with the air intake (08-1) on the air intake shell (08); the center of the above-mentioned shunt (10) is the electrode channel (10-1), and the electrode channel Gas splitting channels (10-2) are evenly arranged around; the above-mentioned tube electrode (01) is installed on the guider (02) and protrudes from the electrode channel (10-1) in the center of the splitter (10). The invention has reasonable design, simple structure, obvious effect and strong practical value.

Description

technical field [0001] The invention relates to a device for improving the quality of EDM-electrolytic composite perforation processing, which belongs to the technical field of micro-hole processing. Background technique [0002] The turbine is the component with the largest thermal and mechanical loads in the aeroengine, and the performance of the engine depends largely on the inlet temperature of the turbine. Adopting effective cooling technology can realize the cooling and cooling of blades, so as to meet the operating requirements of aero-engines. The air film hole is an important air cooling channel under high temperature and high pressure conditions, which determines the service life and reliability of the blade. The film cooling hole technology has been confirmed at home and abroad, and is currently the most widely used and most effective cooling technology. The processing methods of film cooling holes mainly include electric discharge machining, laser machining and...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to improve the processing quality of EDM-electrolytic composite perforation processing. Aiming at the phenomenon of serious stray corrosion, poor precision of small holes and large taper in existing EDM-electrolytic composite perforation processing, it is proposed to use airflow to assist the reduction of workpiece surface impurities. The methods of dissipating corrosion, improving processing accuracy and reducing the taper of small holes, and providing related devices, effectively improve the processing quality of EDM-electrolytic composite perforation

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