Impact of Cutting Parameters and Tool Type on Surface Finish in MQL Turning of Inconel 625
Magdalena Machno, Wojciech Zębala, Emilia Franczyk
TL;DR
This paper studies how tool geometry and cutting parameters affect surface finish when machining Inconel 625 under MQL conditions.
Contribution
A practical algorithm for selecting optimal cutting parameters in MQL turning of Inconel 625 is proposed.
Findings
A cutting insert with a 0.4 mm corner radius achieved the required surface finish (Rz ≤ 0.4 µm).
Cutting parameters and insert type significantly influence surface roughness in MQL turning of Inconel 625.
Thermal properties of Inconel 625 affect machining results and chip geometry.
Abstract
Inconel 625 is a nickel-based superalloy widely applied in aerospace and energy sectors due to its high strength and corrosion resistance. However, its poor machinability remains a significant challenge in precision manufacturing. This study investigates the influence of tool geometry and cutting parameters on surface roughness of Inconel 625 during turning operations under the minimum quantity lubrication (MQL) conditions. Experiments were carried out using three types of cutting inserts with distinct chip breaker geometries while systematically varying the cutting speed, feed rate, and depth of cut. The results were statistically analyzed using analysis of variance (ANOVA) to determine the significance of individual factors. The findings reveal that both the type of cutting insert and the process parameters have a considerable effect on surface roughness, which is the key output…
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Taxonomy
TopicsAdvanced machining processes and optimization · Additive Manufacturing Materials and Processes · Advanced Machining and Optimization Techniques