Multi-objective Optimization of Ms58 Brass Machining Operation by Multi-axis CNC Lathe

摘要

Brass materials are widely used in many fields of machinery, especially plumbing applications. Parts produced from brassare processed in lathes or milling machines during the manufacturing phase. In this study, 6-corner pieces were producedby machining the MS58 brass alloy on the C-axis lathe with an end mill. As machining parameters, tool diameter, feedrateand rotation speed were selected. The effects of these parameters on average surface roughness (Ra), cutting time (t) anddimensional deviation (dev) were determined by the surface response method. Regression equations were created separatelyfor surface roughness, cutting time and dimensional deviation. Later, parameter levels that optimize all three dependentvariables together were obtained by grey relationship analysis. It was determined that the most effective parameter on surfaceroughness and dimensional deviation is the tool diameter. The most effective parameter on cutting time was found to befeedrate. The best combination of machining parameters was 10 mm tool diameter, 150 mm/min feedrate and 1000 rev/minrotation speed. The selection of parameters depends on the requirements based on better surface roughness, minimum cuttingtime, minimum dimensional deviation. Parameter levels that optimize surface roughness only are 10 mm tool diameter,50 mm/min feedrate and 1000 rev/min rotation speed. Parameter levels that optimize cutting time only are 8 mm tooldiameter, 143 mm/min feedrate and 1525 rev/min rotation speed. Parameter levels that optimize cutting time only: 10.31 mmtool diameter, 50 mm/min feedrate and 1000 rev/min rotation speed.