Open AccessWear Mechanism of Cemented Carbide Tool and Modeling Tool Wear in Machining Inconel 718
Author(s) -
Hongjun Zhang,
Jianguang Li,
Zhaopeng Hao
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/5/052024
Subject(s) - inconel , cemented carbide , tool wear , machining , materials science , breakage , carbide , enhanced data rates for gsm evolution , metallurgy , scanning electron microscope , superalloy , grinding , cutting tool , mechanism (biology) , composite material , computer science , microstructure , telecommunications , alloy , philosophy , epistemology
When machining Inconel 718, tool wear is a serious problem, which affects the quality of workpiece. In order to analyze the wear mechanism in dry machining Inconel 718 with cemented carbide tool, the wear morphology of tool was observed by CCD and scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectrometer in this paper. The results showed that at low cutting speed, the formation and shedding of the built-up-edge caused severe cutting tool breakage. When the cutting speed reached 40 m/min, the tool material fell off from the tool substrate in the form of wear debris, which was the main reason for tool wear. In addition, the elements diffusion between the tool and the workpiece and oxidation reaction accelerated the formation and falling off of wear debris. According to the tool wear mechanism, a tool wear prediction model was established. In machining Inconel 718, the excellent experimental agreement have been obtained in the prediction of wear in cemented carbide tool.