Effects of Cutting Edge Radius on the Surface Integrity of Milled Ti6Al4V Alloy
Source abstract
Abstract
As one of the tool geometries, the radius of the cutting tool edge has a great influence on the cutting force and temperature, tool wear and the quality of the machined surface. Therefore, in this study, the influences of cutting edge radius on the surface integrity of side-milled Ti6Al4V alloy were investigated. The cutting force and temperature, surface roughness and morphology, machining-induced hardening and variation of edge radius were analyzed. The results demonstrated that increasing the edge radius can reduce the cutting force and temperature, which was related to the strength and impact resistance of the edge. At the same time, surface defects of the milled Ti alloy occurred, including feed tracks, cutter scratches and cracks. Surface roughness and morphology were better with a 6 μm edge radius than with 4, 5 or 7 μm edges. The depths of the machining-induced hardening layers produced by edges with radii of 4, 5, 6 and 7 μm were 10.1, 141.2, 176.8 and 200.9 μm, respectively. Moreover, those edge radii increased to 12.8, 13.5, 10.3 and 10.6 μm after milling. It can then be demonstrated that the edge radius had significant effect on the surface integrity and the tool wear, with the best radius in this experiment being 6 μm. Therefore, optimizing the edge radius was crucial to reduce tool wear and improve the practical machining surface quality of titanium alloy.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced machining processes and optimization · Advanced Machining and Optimization Techniques · Advanced Surface Polishing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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