Formation of sticking-welding on rake face of carbide tool and its theoretical model of element diffusion

被引：0
|
作者：
Chen J.-G. [1 ,2 ]
Zheng M.-L. [1 ]
Li P.-F. [1 ]
Zhang W. [1 ]
Sun Y.-S. [1 ]
机构：
[1] College of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin
[2] School of Electrical and Mechanical Engineering, Putian University, Putian
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2019年 / 29卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Carbide tool; Diffusion equation; Elements diffusion; Sticking-welding;
D O I：
10.19476/j.ysxb.1004.0609.2019.04.16
中图分类号：
学科分类号：
摘要：
Based on the Fick's second law, the elements concentration distribution of the rake face was described and the semi-infinite length model was used to establish the diffusion equation of the rake face considering the influence of temperature. By analyzing the formation of the sticking-welding during the cutting process, the welded and clamping parts at different temperatures were used to approximately simulate the elements diffusion at different temperatures with or without sticking-welding, so the effects of temperature and sticking-welding on the elements diffusion can be explored. At the same time, combined with elements concentration distribution of the diffusion specimens at different temperatures, data processing and parameter determination were carried out by using data fitting software. The results show that sticking-welding does not affect the final diffusion concentration, but it affects the diffusion process to a certain extent, and with the increase of temperature, the diffusion rate and diffusion distance increase correspondingly, the results are significance for revealing the law of atom movement at microscopic level and improving the anti-adhesion and anti-fracture performance of carbide tool. © 2019, Science Press. All right reserved.
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页码：790 / 802
页数：12
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