Automatic controllable deformation electromachining method for shape memory alloy flexible electrode

Abstract

The invention relates to an electromachining method for autonomous controllable deformation of a shape memory alloy flexible electrode, and belongs to the technical field of electromachining. According to the method, the initial machining position and the final machining position of a tool electrode are determined according to a part model, the electrode is made of tubular or rod-shaped shape memory alloy, and the shape of the electrode is a part profile line shape when the electrode is located at the final machining position. When a complex profile part is machined, a corresponding load is applied to the electrode to enable the electrode to deform into a profile line shape of the part when the electrode is located at the initial machining position, and the side wall of the electrode serves as a machining face to conduct sweeping type machining along the surface of a workpiece. In the machining process, the shape memory effect of the shape memory alloy is utilized, the temperature change of a machining area is controlled, so that the tool electrode automatically recovers while being fed, the shape of the electrode after the electrode automatically recovers at different positions is similar to the molded surface line shape of a part at the corresponding position, and dynamic deformation of automatic recovery of the flexible electrode is achieved; therefore, the molded surface of the machined workpiece is attached to the standard molded surface.

Description

technical field [0001] The invention relates to an electric processing method for autonomously controllable deformation of a shape memory alloy flexible electrode, which belongs to the technical field of electric processing. Background technique [0002] Aeroengine is one of the most complex industrial products, known as "the jewel in the crown of industrial manufacturing". As the heart of an aircraft, its manufacturing level reflects a country's technological and industrial levels to a certain extent. With the continuous improvement of aircraft performance, the performance requirements for aero-engines are getting higher and higher. The appearance of the blisk reduces the number and weight of parts, avoids the overflow pressure loss of the tenon and tenon connection, improves the aerodynamic performance, simplifies the structure of the aero-engine, enhances the reliability, and increases the thrust-to-weight ratio. After the closed integral blisk adds a whole ring of blad...

AI Technical Summary

Problems solved by technology

When processing such parts, the design of the tool electrode is often difficult, and it is necessary to take into account the twisted surface of the blade as a whole, and the processing and manufacturing of the tool electrode also adds additional time and cost

Images