CAJ | 학술논문

为监测金属塑性成型过程中的润滑状态,采用运用声发射技术,通过对无润滑和有润滑时金属塑性变形过程和摩擦过程的监测及对比,分别研究了金属摩擦声发射信号和塑性变形声发射信号.结果表明,不同材料摩擦产生的声发射信号数值上大小不同,同种材料摩擦声发射信号数值上小于塑性变形声发射信号;采用声发射技术,基于实时波形和声发射信号参数的平均值都能监测金属塑性成型时的润滑状态.
위감측금속소성성형과정중적윤활상태,채용운용성발사기술,통과대무윤활화유윤활시금속소성변형과정화마찰과정적감측급대비,분별연구료금속마찰성발사신호화소성변형성발사신호.결과표명,불동재료마찰산생적성발사신호수치상대소불동,동충재료마찰성발사신호수치상소우소성변형성발사신호;채용성발사기술,기우실시파형화성발사신호삼수적평균치도능감측금속소성성형시적윤활상태.
The acoustic emission (AE) technique was used in the experiment to monitor the lubricating condition in the metal plastic deformation. The AE signals of the frietion between the metal and the AE signals of the metal plastic deforma-tion were studied by monitoring the metal plastic deformation process and the friction process in the condition of lubricating or without lubricant. The results show that the AE signals generated by the different materials are unequal in the numerical value. The friction AE signals are less than the plastic deformation AE signals for the same materials. The AE technique could be used to monitor the lubricating condition in the course of the metal plastic deformation by the real time waveshape or mean value of the AE parameters.