An Investigation of Chatter Reduction on Aluminum Alloy 6082-T6 in Turning Operations with a Multilayer Passive Damping (MLPD) Cutting Tool on CNC Machine

The modernized and more sophisticated manufacturing industries today are still constantly thriving to find solutions to unprecedented problems like chatter and vibrations. The chatter permanence is closely affected by the dynamic motion behavior of the tool holder in turning operation. This study used experimental work to see how effectively a passive control system reduced chatter during CNC turning machining. Multi-layer Passive damping tools (MLPD) has proposed with 3 geometrical shaped slots beneath the toolholder which were filled with viscoelastic material. Experimental analysis has made with Aluminum alloy 6082-T6 as workpiece material. Dynamic motion analysis and surface roughness have considered as output parameters to analyze effectiveness of passive damping of proposed MLPD tool. Dynamic motion analysis has made with qualitative tools like time displacement response, Fast Fourier Transformation response, and Poincaré map. Qualitative analysis of experiments has justified with quantified parameter. Outcome of present work led to conclude that MLPD tool with spline geometry is more effective to reduce chatter in CNC machining with single point cutting tool. It is also revalidated experimentally that cutting speed of 350 m/min is not preferable as behavior of system is chaotic. Present work will be useful for single point cutting tool developer and manufacturer to select cutting parameters to reduce chatter.