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Chip morphology and cutting temperature of ADC12 aluminum alloy during high-speed milling

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Abstract

The ADC12 aluminum alloy is prone to severe tool wear and high cutting heat during high-speed milling because of its high hardness. This study analyzes the high-speed milling process from the perspective of different chip morphologies. The influence of cutting temperature on chip morphology was expounded. A two-dimensional orthogonal cutting model was established for finite element analysis (FEA) of high-speed milling of ADC12 aluminum alloy. A theoretical analysis model of cutting force and cutting temperature was proposed based on metal cutting theory. The variations in chip shape, cutting force, and cutting temperature with cutting speed increasing were analyzed via FEA. The results show that, with the increase in cutting speed, the chip morphology changes from continuous to serrated, and then back to continuous. The serrated chip is weakened and the cutting temperature is lowered when the speed is lower than 600 m·min−1 or higher than 1800 m·min−1. This study provides a reference for reducing cutting temperature, controlling chip morphology and improving cutting tool life.

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Acknowledgements

This study was financially supported by the National Natural Science Foundation of China (No. 51975123) and Fuzhou Science and Technology Plan Project (No. 2019G42).

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  1. School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China

    Xin-Xin Meng & You-Xi Lin

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  1. Xin-Xin Meng
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  2. You-Xi Lin
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Correspondence to You-Xi Lin.

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Meng, XX., Lin, YX. Chip morphology and cutting temperature of ADC12 aluminum alloy during high-speed milling. Rare Met. 40, 1915–1923 (2021). https://doi.org/10.1007/s12598-020-01486-2

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  • DOI: https://doi.org/10.1007/s12598-020-01486-2

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