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Experimental and FEM study of coated and uncoated tools used for dry milling of compacted graphite cast iron

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Abstract

Compacted graphite cast iron (CGI) has been the material for high-power diesel engines recently, but its increased strength causes poor machinability. In this study, coated and uncoated carbide tools were used in dry milling experiment and FEM simulation to study the machinability of CGI and wear behaviour of tools. The experimental and FEM simulation results show that coated tool has great advantage in dry milling of CGI. SEM and EDS analysis of tool wear indicate the wear morphology and wear mechanism. Adhesive wear is the main mechanism to cause uncoated tool wear, while abrasive wear and delamination wear are the main mechanism to cause coated tool wear. Stress and temperature distribution in FEM simulation help to understand the wear mechanism including the reason for coating peeled off.

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Correspondence to Ming Chen  (陈 明).

Additional information

Supported by National Natural Science Foundation of China (No. 50935001 and No. U0734007), Important National Science and Technology Specific Projects of China (No.,20011ZX04015-031), National High Technology Research and Development Program of China(“863”Program, No. 2009AA04Z150)and Major State Basic Research Development Program of China (“973” Program, No. 2010CB731703 and No. 2011CB706804).

CHEN Ming, born in 1966, male, Dr, Prof.

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Chen, M., Jiang, L., Guo, G. et al. Experimental and FEM study of coated and uncoated tools used for dry milling of compacted graphite cast iron. Trans. Tianjin Univ. 17, 235–241 (2011). https://doi.org/10.1007/s12209-011-1609-1

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  • DOI: https://doi.org/10.1007/s12209-011-1609-1

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