期刊
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
卷 38, 期 -, 页码 105-119出版社
ELSEVIER
DOI: 10.1016/j.cirpj.2022.04.009
关键词
Machining; Force coefficients; Tool wear monitoring
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Pratt & Whitney Canada and Sandvik Coromant Sweden [IRCPJ-260683]
This paper proposes a method for monitoring the in-process force coefficients for toolpaths with varying radial immersions or feed rates, and validates the effectiveness of this method.
Mechanistic modeling of the milling forces is described by a set of cutting and edge force coefficients that characterize the shearing and ploughing actions of the metal removal process. The force coefficients are traditionally calibrated under a series of dedicated milling experiments. However, due to the force coefficients' process-dependency, such an approach can become cumbersome if the machining conditions deviate from those of the milling experiments. In this paper, a method for monitoring the in-process force coefficients is proposed for toolpaths that exhibit varying radial immersions or feed rates. The proposed methodology was experimentally validated, and it is demonstrated that the edge force coefficients can be used to estimate the tool's flank wear. In the absence of a force dynamometer, force coefficients as estimated under spindle current measurements were evaluated and also shown to be a viable solution for tool wear monitoring.(c) 2022 CIRP.
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