Experimental Investigation on Laser-Processed Micro-Dimple and Micro-Channel Textured Tools during Turning of Inconel 718 Alloy
Source abstract
Abstract
The machining of superalloys being challenging is continuously evolving due to development in cutting tool technology and tool materials. This study comparatively evaluates through mathematical models the machining performance of nanosecond fiber laser-processed micro-dimple and micro-channel textured carbide tools having average diameter/width and depth of 80 and 70 µm, respectively, during dry turning of Inconel 718. This study finds mixed results with both the micro-textured tools. Micro-channel textured tools showed notable improvement in tool life up to 60% over micro-dimple textured tools at lower cutting speeds. However, we found almost the same tool life with both tools at higher cutting speeds. Micro-dimple textured tools produced a better surface finish and lower cutting forces. However, micro-channel textured tools produced a better surface finish at higher cutting speeds. EDS analysis and subsequent elemental mapping affirm a strong adhesion of chip particles and debris on micro-textured tools leading to quick failure of tools. However, this effect was more prominent for micro-dimple textured tools. This study concludes that micro-channel textured tools are the better alternative for dry turning of Inconel 718. However, we find scope for the machinability studies of Inconel 718 with hybrid micro-textured patterns on the rake and flank surfaces.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced machining processes and optimization · Laser Material Processing Techniques · Tribology and Lubrication Engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
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