The experiments are conducted in Fanuc CNC lathe. A work piece positioning
accuracy is ± 0.010 and run out is tested by dial gauge heavy duty magnetic base.
The range of cutting parameters is selected based on tool manufactures
handbook (Tungaloy Cutting Tool Co., Ltd). In this investigation, three types of
cutting inserts are taken for turning process. Multi-layered CNMG 120408 coated
with TiCN/Al2O3 of 14 μm, multi-layered CNMG 120408 coated with Ti(C,N,B)
of 6μm and single-layered CNMG 120408 coated with TiAlN of 3 μm. Tool
holder of PC LNR 25 × 25 M12.1 was selected for all trials. SR is measured in all
trials by the SURF TEST 211 and it is denoted by Ra. Measurements are taken by
the proper setting of work pieces and the instrument. In the present work, three
parameters each set at three levels are chosen for experimentation.
The experiments are conducted in Fanuc CNC lathe. A work piece positioningaccuracy is ± 0.010 and run out is tested by dial gauge heavy duty magnetic base.The range of cutting parameters is selected based on tool manufactureshandbook (Tungaloy Cutting Tool Co., Ltd). In this investigation, three types ofcutting inserts are taken for turning process. Multi-layered CNMG 120408 coatedwith TiCN/Al2O3 of 14 μm, multi-layered CNMG 120408 coated with Ti(C,N,B)of 6μm and single-layered CNMG 120408 coated with TiAlN of 3 μm. Toolholder of PC LNR 25 × 25 M12.1 was selected for all trials. SR is measured in alltrials by the SURF TEST 211 and it is denoted by Ra. Measurements are taken bythe proper setting of work pieces and the instrument. In the present work, threeparameters each set at three levels are chosen for experimentation.
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