An ultra-precision machining method of titanium alloy based on ultrasonic elliptical vibration cutting technology

Abstract

The invention discloses a titanium alloy ultraprecision machining method based on an ultrasonic elliptical vibration cutting technology. The titanium alloy ultraprecision machining method comprises the following steps: I, adjusting and controlling the temperature, the humidity and the air cleanliness of an ultraprecision machining laboratory; II, performing a pilot run on a machine tool; III, debugging an ultrasonic elliptical vibration cutting system; IV, mounting an ultrasonic elliptical vibration cutting device; V, mounting a titanium alloy material; VI, performing rough cutting; VII, performing semi-finished cutting; VIII, performing finish cutting; IX, performing ultrasonic elliptical vibration assisted cutting; and X, stopping an ultraprecision machine tool and the ultrasonic elliptical vibration cutting system, taking down a titanium alloy workpiece, cleaning the titanium alloy workpiece with absolute ethyl alcohol, performing drying, and then storing the titanium alloy workpiece to obtain an ultraprecision titanium alloy surface machined by the ultrasonic elliptical vibration cutting technology. The ultrasonic elliptical vibration cutting technology is adopted to realize ultraprecision machining of titanium alloy. The titanium alloy ultraprecision machining method has the advantages that abrasion of a cutter can be effectively inhibited, pits and microcracks on a machined surface are inhibited, the surface integrity of the workpiece is improved, and the damage degree of a subsurface of the workpiece can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of precision and ultra-precision cutting, and relates to an ultra-precision cutting process method for titanium alloy materials. Background technique [0002] Ferroalloys are widely used in aerospace, marine engineering, biomedicine, and automobile industries because of their advantages such as high strength ratio, low density, high temperature resistance, and corrosion resistance. In recent years, with the further development of science and technology, the processing accuracy requirements for typical titanium alloy parts are getting higher and higher. However, titanium alloy materials have material properties such as low thermal conductivity, low elastic modulus, and high strength at high temperatures, so that cutting titanium alloys is usually accompanied by high cutting temperatures and extremely fast tool wear. Therefore, it is difficult to complete ultra-precision machining of titanium alloy materials ...

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Problems solved by technology

[0004] In order to solve the problems of high cutting temperature, fast tool wear, tool chatter, and a large number of pitting on the processing surface in the existing ultra-precision cutting process of titanium alloy materials, the invention provides a titanium alloy ultra-precision cutting technology based on ultrasonic elliptical vibration cutting technology. processing methods

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