Effect of Cutting Speed on Surface Integrity in High Speed Machining Nickel-Based Superalloy Inconel 718

Zhan Qiang Liu; Cheng Ming Cao; J. Du; Zhen Yu Shi

doi:10.4028/www.scientific.net/MSF.697-698.208

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An Explicit Integration Algorithm for Introducing User-Defined Thermo-Viscoplastic Constitutive Models in FE Simulations
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Effect of Cutting Speed on Surface Integrity in High Speed Machining Nickel-Based Superalloy Inconel 718
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The Research on Milling Forces of Dry Cutting Spiral Bevel Gears
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HomeMaterials Science ForumMaterials Science Forum Vols. 697-698Effect of Cutting Speed on Surface Integrity in...

Effect of Cutting Speed on Surface Integrity in High Speed Machining Nickel-Based Superalloy Inconel 718

Abstract:

Surface integrity is becoming important to satisfy the increasing requirements service life of machined parts. The purpose of this study is to investigate the effects of cutting speeds on surface integrity of Inconel 718. Experiments are conducted on a CNC machining center under various cutting speeds. The machined surface integrity is evaluated in terms of surface roughness, microhardness and residual stress. Experimental results show that machined surface integrity of Inconel 718 is sensitivity to the variations of cutting speeds. The surface roughness firstly increases with the cutting speeds increasing at the range from 50 m/min to 200 m/min, then decreases with the further increasing of the cutting speeds. For microhardness, it can be seen that work-hardening for the machined surface is serious. The surface residual stresses are tensile ones at the range of the selected cutting speeds from 50 m/min to 3,000 m/min in this research.

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Periodical:

Materials Science Forum (Volumes 697-698)

Pages:

208-212

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.697-698.208

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Online since:

September 2011

Authors:

Zhan Qiang Liu, Cheng Ming Cao, J. Du, Zhen Yu Shi

Keywords:

High Speed Machining, Inconel 718, Superalloy, Surface Integrity

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