Author:
Song Xiaoqi,Takahashi Yukio,He Weiming,Ihara Tohru, ,
Abstract
This paper presents an analytical model to study the influence of the thickness of the built-up layer (BUL) / built-up edge (BUE) on its protective effect during cutting. A new elastic-plastic contact model at the tool-chip interface is proposed to analyze the sliding contact problem with a layer of adhesion (including the BUL and BUE). The equivalent inclusion method (EIM) is utilized to analyze the stress disturbance caused by the adhesion and to evaluate the protective effect of the adhesion. In this method, the adhesion is considered as an equivalent elliptical inclusion at the tool-chip interface. The protective effect of the adhesion and the influence of the adhesion thickness on its protective effect can be evaluated. The proposed analytical model was verified based on experimental data obtained from dry cutting of SUS304 stainless steel. From the results, it can be confirmed that BUL/BUE can protect the cutting tool by affecting the stress distributions in the tool, the positions of yield initiation, and the tangential force acting on the tool. It can also be concluded that a greater thickness improves the protective effect of the BUL/BUE. Furthermore, the proposed model can also provide a clear understanding of the BUL/BUE formation phenomenon.
Publisher
Fuji Technology Press Ltd.
Subject
Industrial and Manufacturing Engineering,Mechanical Engineering
Reference36 articles.
1. N. Tomac, K. Tonnessen, F. O. Rasch, and T. Mikac, “A study of factors that affect the built-up material formation,” AMST’05, CISM Courses and Lectures, Vol.486, pp. 183-192, 2005.
2. T. H. C. Childs, “Ductile shear failure damage modelling and predicting built-up edge in steel machining,” J. of Materials Processing Technology, Vol.213, No.11, pp. 1954-1969, 2013.
3. K. Hoshi and T. Hoshi, “Metal cutting technology,” Kogyo Chosakai Publishing Co., Ltd., 1981 (in Japanese).
4. X. Song, Y. Takahashi, and T. Ihara, “Prediction of built-up layer and built-up edge formation in dry cutting of SUS304 stainless steel,” Int. J. Automation Technol., Vol.13, No.1, pp. 13-21, 2019.
5. X. Song, Y. Takahashi, and T. Ihara, “Investigating the self-protective tool formation during cutting of titanium alloy,” Proc. of 33rd ASPE Annual Meeting, Vol.70, pp. 329-334, 2018.