Influence of ultrasonic peening cutting on surface integrity and fatigue behavior of Ti-6Al-4V specimens

Autor: Yang Shenliang, Xinggang Jiang, Li Xun, Lu Zhenghui, Xiangyu Zhang, Deyuan Zhang
Rok vydání: 2020
Předmět:
Zdroj: Journal of Materials Processing Technology. 275:116386
ISSN: 0924-0136
DOI: 10.1016/j.jmatprotec.2019.116386
Popis: Ultrasonic vibration cutting has been successfully applied in many manufacturing fields due to its superior performances, such as low cutting force, high surface quality and long tool life. However, few studies have applied ultrasonic vibration cutting in the field of anti-fatigue manufacturing. In this work, ultrasonic peening cutting is developed to achieve precision-strengthening integrated processing of machined surfaces, which vibration direction is always along with cutting depth direction. Meanwhile, based on analyzing the theoretical motion model of cutting edge, the cutting experiments on Ti-6Al-4V specimens are carried out utilizing ultrasonic peening cutting and conventional cutting respectively. Experimental results show that the average fatigue life of specimens machined by ultrasonic peening cutting with a vibration amplitude of 8 μm is 10.4 times higher than that processed utilizing conventional cutting, and the machined surface roughness of ultrasonic peening cutting increases from Ra0.49μm to Ra0.50μm compared to that machined by conventional cutting.
Databáze: OpenAIRE