An Ultrasonic Elliptical Vibration Scratch Test Method

Abstract

The invention discloses an ultrasonic elliptical vibration scratch test method. The method is as follows: In the ultra-precision machining laboratory with constant temperature and humidity, turn on the ultrasonic elliptical vibration cutting device, adjust the amplitude and phase difference of the two-phase vibration, based on the C-axis function of the lathe, cooperate with the X-axis and Z-axis feed of the lathe, The ultrasonic elliptical vibration scratch test was carried out on the cut flat sample with a diamond tool, and the cutting marks close to the actual cutting conditions were obtained. Based on the function of the C-axis of the lathe, the invention cooperates with the Z-axis feed of the lathe to carry out the scratching test with variable cutting depth and variable speed under the actual cutting conditions, and realizes leveling, benchmarking, and scratching in sequence under one clamping and positioning of the specimen Test and other steps to provide a feasible high-precision scratch test method close to the actual cutting conditions.

Description

technical field [0001] The invention relates to the field of ultrasonic vibration cutting principle test research, in particular to an ultrasonic elliptical vibration scratching test method. Background technique [0002] Ultrasonic elliptical vibration cutting is a method of applying two-dimensional vibration to the tool through single / double excitation, and cutting with the two-dimensional vibration tool. Compared with the traditional one-dimensional ultrasonic vibration cutting, the ultrasonic elliptical vibration cutting has more thorough separation characteristics, and can realize the functions of cutting friction reversal, variable angle cutting, and variable speed cutting in two directions, so as to obtain nano-scale surface roughness. At the same time, it significantly reduces tool wear and obtains better cutting quality. [0003] Ultrasonic elliptical vibration cutting is a complex process of interaction between the tool and the surface of the workpiece with circula...

AI Technical Summary

Problems solved by technology

However, the biggest problem with ordinary scratching is that it is difficult for a single-grain diamond indenter to represent the actual cutting state, the scratching accuracy is difficult to guarantee, and the scratching reference is easy to change, which restricts the exploration of the role of ultrasonic elliptical vibration cutting process from the microscopic scale.

[0005] At present, there are few researches and explorations on ultrasonic elliptical vibration scratching at home and abroad. Therefore, it is urgent to design a suitable scratching test method.

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