Stability analysis of TATWC based on UVA milling method

Author:

Liu Yuan1ORCID,Zhao Li2,Sun WenFang1,Wang Qing1

Affiliation:

1. School of Electronic Information and Intelligent Manufacturing, Anhui Xinhua University, Anhui, China

2. School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China

Abstract

Difficult machining characteristics of titanium alloy materials and low rigidity characteristics of thin-walled component make Titanium Alloy Thin-Walled Component (TATWC) prone to chatter during machining, resulting in poor surface quality and other defects, which restricts the expansion and application of TATWC in the special industrial field. The appearance of Ultrasonic Vibration Assisted (UVA) milling method provides a new technology to overcome the processing problems of the TATWC. To analyze the stability of the TATWC processed by UVA milling method, first, by introducing a characterization function, a cutting force model of UVA milling method is established; The coefficients of cutting force between milling cutters and TATWC are solved through experiments. The model is verified by comparing the experimental and predicted values of cutting force; Secondly, the stability prediction model of UVA milling method based on full discrete method is established, and the effect of various process parameters on the stability of UVA milling method is researched. Finally, based on theoretical analysis, the modal characteristics of TATWC are measured through modal experiments. The feasibility of the stability prediction model of UVA milling method is verified by cutting TATWC with variable cutting depth.

Funder

Natural Science Research Project of Anhui Universities in 2020

Intelligent robot research team

Publisher

SAGE Publications

Subject

Mechanical Engineering

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