1- Chern, G. L., Chang, Y. C. Using two-dimensional vibration cutting for micro-milling. International Journal of Machine Tools and Manufacture. 2006; 46(6): 659-666.
2- Hsu, C. Y., Tsao, C. C., Huang, C. H., Lin, Y. C. A Study on ultrasonic vibration milling of inconel 718. Key Engineering Materials. 2010; 419: 373-377.
3- Ding, H., Chen, S. J., Cheng, K. Experimental study on machinability improvement of hardened tool steel using two dimensional vibration-assisted micro-end-milling. Journal of Engineering Manufacture, 2010; 224(12): 1775-1783.
4- Shen, X. H., Zhang, J. H., Li, H., Wang, J. J., Wang, X. C. Ultrasonic vibration assisted milling of aluminum alloy. The International Journal of Advanced Manufacturing Technology. 2012; 63: 41-49.
5- Shen, X. H., Zhang, J. H., Li, H., Wang, J. J. Study on Surface Roughness of Ultrasonic Vibration Assisted Milling. Advanced Materials Research. 2012; 426: 309-312.
6- Abootorabi Zarchi, M. M., Razfar, M. R., & Abdullah, A. Influence of ultrasonic vibrations on side milling of AISI 420 stainless steel. The International Journal of Advanced Manufacturing Technology. 2013; 66: 83-89.
7- Lian, H., Guo, Z., Huang, Z., Tang, Y., Song, J. Experimental research of Al6061 on ultrasonic vibration assisted micro-milling. Procedia Cirp. 2013; 6: 561-564.
8- A. Maurotto, C.T. Wickramarachchi. Experimental investigations on effects of frequency in ultrasonically-assisted end-milling of AISI 316L. Ultrasonics. 2016; 65: 113-120.
9- Jiao, F., Zhao, L., Yao, C. L., & Qi, F. Research on milling deformation in ultrasonic vibration assisted end milling of titanium alloy thin-walled parts. Key Engineering Materials. 2018; 764: 174-183.
10- Shen, X. H., Xu, G. F. Study of milling force variation in ultrasonic vibration-assisted end milling. Materials and Manufacturing Processes. 2018; 33(6): 644-650.
11- Verma, G. C., Pandey, P. M. Machining forces in ultrasonic vibration assisted end milling. Ultrasonics. 2019; 94: 350-363.
12- Tapoglou, N., Taylor, C. Ultrasonic Vibration Assisted Milling of Aerospace Materials. In: ASME International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. p. V02AT02A023
13- Feng, Y., Hsu, F. C., Lu, Y. T., Lin, Y. F., Lin, C. T., Lin, C. F., Liang, S. Y. Temperature prediction of ultrasonic vibration-assisted milling. Ultrasonics. 2020; 108: 106-212.
14- Xie, W., Wang, X., Zhao, B., Li, G., Xie, Z. Surface and subsurface analysis of TC18 titanium alloy subject to longitudinal-torsional ultrasonic vibration-assisted end milling. Journal of Alloys and Compounds. 2022; 929: 167-259.
15- Lotfi, M., Charkhian, A., Akbari, J. Surface analysis in rotary ultrasonic-assisted milling of CFRP and titanium. Journal of Manufacturing Processes. 2022; 84: 174-182.
16- Du, P., Han, L., Qiu, X., Chen, W., Deng, J., Liu, Y., Zhang, J. Development of a high-precision piezoelectric ultrasonic milling tool using longitudinal-bending hybrid transducer. International Journal of Mechanical Sciences. 2022; 222: 107239
17- Jing, L., Niu, Q., Yue, W., Rong, J., Gao, H., & Tang, S. Groove bottom material removal mechanism and machinability evaluation for longitudinal