Li Zhen

TL;DR: In this article, a rotary ultrasonic vibration grinding cutting force prediction method is presented, in which a first single abrasive particle radial cutting force model in a plastic flow removal mode and a second single-branched radial cutting forces model in brittle fracture removal mode are established correspondingly, by combining a ductile-brittle removal proportion coefficient, and the condition that a workpiece undergoes combined action of a single particle radial force and friction force in the rotary vibrational grinding machining process is considered, and finally, an adjusting coefficient C is introduced to ensure that

TL;DR: In this paper, the authors provided a method and a device of full-domain cutting force model in rotary ultrasonic vibration milling by carrying out the kinematics analysis between a tool abrasive grain and a workpiece material interaction in the machining process.

TL;DR: The ultrasonic vibration workbench as mentioned in this paper consists of a base, an ultrasonictransducer, a composite booster and a clamp; the base is provided with a cavity, and the ultrasonic transducer is encapsulated inside the cavity.

TL;DR: In this paper, a non-contact three-dimensional profile meter is used for obtaining a sampling array on the machined surface, and then roughness values of all samples in the sampling array are calculated; and a frequency histogram is drawn for the roughness of the 3D surfaces of the samples in sampling array, gaussian fitting is conducted to obtain the average value u and the standard deviation sigma of a fitting gaussian function, and the quality of the cut surface of the carbon fiber composite is characterized through (u+/-3 sigma).