A Numeric Investigation of Rectangular Groove Cutting with Different Lateral Micro Textured Tools

A Numeric Investigation of Rectangular Groove Cutting with Different Lateral Micro Textured Tools
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不同横向微纹理刀具切割矩形槽的数值研究

DOI:
10.4028/www.scientific.net/kem.693.697
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发表时间:
2016-05
期刊:
Key Engineering Materials
影响因子:
--
通讯作者:
WJ Deng
WJ Deng
中科院分区:
其他
文献类型:
--
作者:
B Wang;JY Zhang;CL Wu;WJ Deng

文献摘要

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刀具前刀面上的微织构有利于改善刀屑界面的摩擦条件,从而有助于降低切削力和切削温度。文献表明,刀具前刀面上的横向纹理(垂直于切屑流动方向)比其他纹理具有更好的性能。本文采用先进的有限元分析程序,分析了矩形槽切削过程中不同横向微织构对切削力、切削温度和切屑形成的影响。采用3种刀具前刀面具有不同横向微纹理的刀具,1种为平行纹理(MT1), 2种为非平行纹理(MT2、MT3)。结果表明,横向织构刀具在控制切屑卷曲度、减小切削力和降低切削温度方面具有显著优势。综合而言,非对称侧向织构刀具MT2在控制切屑易碎性、减小切削力和降低主切削刃平均切削温度方面表现最佳。
Micro textures on the tool rake face facilitate to improve friction conditions at the tool-chip interface, and therefore contribute to decreasing cutting force and cutting temperature. Literature has shown that lateral textures (perpendicular to chip flow direction) on tool rake face have better performance than other texture patterns. In this present study, the effect of different lateral micro textures on cutting force, cutting temperature and chip formation were analyzed via an advanced finite element analysis code in rectangular groove cutting processes. Three cutting tools with different lateral micro textures on tool rake face, one is parallel textured (MT1) and two are non-parallel textured (MT2, MT3), were employed in this study. The results indicate that lateral textured tools have significant advantages in terms of controlling chip curl, reducing cutting forces and decreasing cutting temperature. Synthetically, asymmetrical lateral textured tool MT2 show best performance in chip breakability control, decreasing cutting forces, and lower mean cutting temperature along the main cutting edge.
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