铣削SiCp/Al复合材料时PCD刀头断裂机理

2014 Sixth International Conference on Measuring Technology and Mechatronics Automation Pub Date : 2014-01-10 DOI:10.1109/ICMTMA.2014.142

Wang Yangjun, C. Linsen, S. Bing, C. Tao

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引用次数: 0

摘要

SiCp/Al复合材料以其优异的力学性能在工业上得到了广泛的应用，但SiCp/Al复合材料在切削过程中刀具的严重磨损限制了其进一步的应用。PCD刀具在SiCp/Al复合材料的切削加工中具有良好的适应性，但在铣削SiCp/Al复合材料时经常出现PCD刀头断裂的现象。本文建立了SiCp/Al复合材料铣削过程中的微观相互作用模型，揭示了其断裂机理。在考虑切削速度的情况下，分析了其相互作用行为。结果表明，在SiCp/Al复合材料铣削过程中，存在防止PCD刀头断裂的极限切削速度。极限切割速度为720m/min。

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Rupture Mechanism of PCD Tool Nose in Milling SiCp/Al Composites

SiCp/Al composites is widely used in industries for its superior mechanical property, but the severe wear of tools in cutting of SiCp/Al composites limitits further application. PCD tools is proved to be adaptable in cutting SiCp/Al composites, but the rupture of PCD tool nose often occurs in milling SiCp/Al composites. In this paper the micro-interaction model in milling SiCp/Al composites is established to reveal the rupture mechanism. The interaction behavior is analyzed by considering cutting speed. The result shows there exists limit cutting speed to avoid the rupture of PCD tools nose in milling SiCp/Al composites. The limit cutting speed is 720m/min.

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2014 Sixth International Conference on Measuring Technology and Mechatronics Automation

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