Experimental Investigations on Surface Roughness, Cutting Force and Tool Wear of Duplex Stainless Steel in End Milling Using Taguchi Method


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Abstract


In this work, the cutting parameters in end milling operations of nitrogen alloyed duplex stainless steel are optimized by using Taguchi method. The end milling tests are conducted at three different spindle speeds and feed rates with constant depth of cut. The signal to noise ratio and analysis of variance are used to investigate the cutting characteristics. The wear rates in the tool inserts are examined by scanning electron microscope. The analysis of the results shows that the feed rate and spindle speed are the most significant parameters influencing the cutting force and surface roughness. It is also found that, the spindle speed is the most significant parameter and feed rate is less significant parameter influencing the tool wear. The confirmation tests are carried at optimum cutting conditions to validate the predicted results. High flank and rake wear are observed at higher spindle speed and feed rate.
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Keywords


Cutting Force; Duplex Stainless Steel; End Milling; Optimization; Surface Roughness; Taguchi Method; Tool Wear

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