Influence of Tool Flank Wear on Surface Integrity in Orthogonal Milling of Powder Metallurgy Superalloy

Jin Du; Zhan Qiang Liu

doi:10.4028/www.scientific.net/MSF.723.182

Paper Titles

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Using the Flat-End Mill in the Strip Width Machining
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Experiment Study of Tool Wear and Surface Integrity in High Speed Milling of a New Damage-Tolerant Titanium Alloy
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Influence of Tool Flank Wear on Surface Integrity in Orthogonal Milling of Powder Metallurgy Superalloy
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Investigation into Roughness of Surface Polished by Abrasive Waterjet with Taguchi Method and Dimensional Analysis
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A Practical Study on the Surface Integrity of High-Speed Cylindrical Grinding of SiC
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Influence of Milling Parameters on Surface Residual Stresses of 7050-T7451 Aluminum Alloy
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HomeMaterials Science ForumMaterials Science Forum Vol. 723Influence of Tool Flank Wear on Surface Integrity...

Influence of Tool Flank Wear on Surface Integrity in Orthogonal Milling of Powder Metallurgy Superalloy

Abstract:

Tool flank wear has the significant effects on machined surface integrity. The influences of tool flank wear on the cutting forces, surface roughness, microhardness and white layer thickness are investigated in this paper through orthogonal milling experiments. FGH95 powder metallurgy (PM) superalloys are machined with coated cemented carbide tools in the milling experiments. The experiment results show that with the increasing of tool flank wear, cutting force, surface roughness and white layer thickness increase. However, the machined surfaces micro-hardness aggravates with the increase of tool flank wear. It is found that, the machined surface roughness, micro-hardness and white layer increase dramatically especially when the tool flank wear exceeds 0.3mm. A conclusion is then be drawn that, the maximum acceptable tool flank wear land is 0.3mm from the view point of surface integrity when FGH95 PM superalloy is machined with coated cemented carbide tools.