Machinability Evaluation of Al 3003 Processed by Non-Equal-Channel Angular Pressing (NECAP) Using Taguchi Method

Abstract

Non-equal-channel angular pressing (NECAP) is emerging as one of the most developed severe plastic deformations (SPD) methods that require more detailed investigations. Machining study is inevitable to form any material into required dimensions. The lack of NECAP processed materials machining data, as a fundamental stage for production development, motivated the present work, in which the machinability aspects of Al 3003 subjected to NECAP process, in terms of cutting force, surface roughness, and chip morphology have been investigated and compared to initial state of mentioned material. Experimental runs have been conducted using defined machining parameters under the name of spindle speed, feed rate, and depth of cut. The results show noticeable enhancements in which impact of NECAP process on the machinability of Al 3003 causes reducing the cutting force (10.24%), surface roughness (8.47%), and chip formation improvement. High spindle speed (1500 rev/min), low feed rate (98 mm/min), and depth of cut (0.5 mm) have been the best cutting parameters combination to achieve desired machinability aspects in both workpiece, before and after NECAP process. The paper's findings advocate the application of NECAP processed Al 3003 in manufacturing industries.