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دسته بندی:
مهندسی مکانیک - mechanical engineering
سال انتشار:
2016
عنوان انگلیسی مقاله:
Effects of ultrasonic vibrations in micro-groove turning
ترجمه فارسی عنوان مقاله:
اثر ارتعاشات اولتراسونیک در تبدیل میکرو شیار
منبع:
Sciencedirect - Elsevier - ULTRASONICS, 67 (2016) 30-40. doi:10.1016/j.ultras.2015.12.016
نویسنده:
Chen Zhang, Ping Guo, Kornel F. Ehmann, Yingguang Li
چکیده انگلیسی:
Ultrasonic vibration cutting is an efficient cutting process for mechanical micro-machining. This process can generate intricate surface textures with different geometric characteristics. Micro-grooves/micro- channels are among the most frequently encountered micro-structures and, as such, are the focus of this paper. The effectiveness of both the linear and ultrasonic elliptical vibration-assisted machining tech- nique in micro-groove turning is analyzed and discussed in the paper. The paper first investigates the mechanisms of micro-groove generation induced by the linear and elliptical vibration modes. A simpli- fied cutting force analysis method is given to compare the effectiveness of the two modes in micro- groove turning. The surface roughness of the generated micro-grooves is analyzed next and theoretical expressions are given for the two cases. Finally, micro-groove turning experiments are conducted to com- pare the influences of the two vibration modes on the cutting forces and the surface roughness. The experimental results show that linear vibration-assisted micro-groove turning leads to better surface roughness as compared to the elliptical vibration-assisted case, while elliptical vibration-assisted micro-groove turning shows advantages in terms of decreasing the cutting forces.© 2016 Elsevier B.V. All rights reserved.
Keywords: Micro-groove | Ultrasonic vibration cutting | Turning process | Cutting forces | Surface roughness
قیمت: رایگان
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