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A Comparative Study on Machinability Characteristics In Dry Machining Of Nimonic 263 Alloy Using Coated Carbide Inserts
, Thakur A.
Published in Elsevier BV
Volume: 5
Issue: 5
Pages: 12443 - 12452
The present study investigated the comparative study of machinability parameters on the quality characteristics of force (Fz) and roughness (Ra) during the dry machining Nimonic 263 alloy. Machinability experiments are carried out with two coated i.e. PVD (TiAlN), KC25 (TiN/Al2O3/TICN) for dry turning at four speeds (60, 90, 120 m/min, 150 m/min), two feed (0.05, 0.12, 0.18 and 0.25 mm/rev) and three cutting depth (0.4, 0.6, 0.8 1.0 mm). The experiments are planned based on Taguchi's L16 orthogonal array. The optimal parameters combination of the machinability parameters on quality characteristics is determined using 'smaller-the better" characteristics in Taguchi analysis. From the experimental results, the most significant factor in case of both Fz and Ra is feed rate and cutting speed during the turning of 263 Nimonic alloy for both coated carbide insert using variance test (ANOVA). Pearson correlation coefficient analysis is also calculated to find the correlation between the machining parameters and machinability attributes. Also the calculated Pearson correlation coefficient showed a robust relationship between the feed, cutting depth and force and roughness. In addition, the lower magnitude of cutting force and roughness is observed for dry in both inserts at low level of feed (0.05 mm/rev) and cutting depth (0.4 mm) with moderate levels of speed (120 m/min). © 2017 Elsevier Ltd. All rights reserved.
About the journal
JournalData powered by TypesetMaterials Today: Proceedings
PublisherData powered by TypesetElsevier BV
Open AccessNo