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Effects of Tool Geometry and Workpiece Hardness on Surface Roughness in Finish Hard Turning of AISI 440C

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Abstract:

In this study, the effects of cutting tool geometry and workpiece hardness on surface roughness in finish hard turning of AISI 440C steel were experimental investigated. Four-factor (hardness, tool geometry, feed rate and cutting speed) two-level fractional experiments were conducted and analysis of variance (ANOVA) was performed. This study showed that the effects of workpiece hardness and tool geometry on surface roughness are statistically significant. Especially lower workpiece surface hardness and larger tool nose angle resulted in lower surface roughness because that the surface hardness influences the workpiece’s flow stress and the tool nose angle changes the contact area between the cutting tool and workpiece.

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Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

1815-1818

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.1815

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Cite this paper

Online since:

March 2010

Authors:

Zhen Yu Shi, Zhan Qiang Liu

Keywords:

Analysis of Variance (ANOVA), Hard Turning, Tool Geometry, Workpiece Hardness

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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