CD Skripsi
Analisis Kekasaran Permukaan Dan Optimasi Parameter Pemesinan Cnc Lathe Pada Pembuatan Piston Master Cylinder Rem Sepeda Motor Yamaha
This study aims to optimize the machining parameters in the production process of the Yamaha motorcycle brake piston master cylinder for finishing work and to determine the effect on surface roughness. The method used is the Taguchi method and simulation assisted by Mastercam 2018 software (CNC lathe). Machining parameters were varied based on the Taguchi method, each of which applied a machining simulation and experiments were carried out using a CNC lathe with finishing. From these simulations and experiments, the results obtained in the form of processing time for the finishing process and the surface roughness values measured in the experimental results. The time and surface roughness measurement results obtained are then analyzed, so that the best parameters are obtained with the smallest average surface roughness value and the effect of each factor on surface roughness in the manufacture of the brake master cylinder piston. This research produces parameters with the fastest time, namely spindle speed 2.006 RPM, feed rate 0.10 mm/rev, and depth of cut 0.35 mm, but these parameters produce a high average surface roughness value. So, the parameters used in the finishing process are spindle speed 1.755 RPM, feed rate 0.09 mm/rev, and depth of cut 0.30 mm. Where these parameters have a fairly fast processing time with a small average surface roughness value. Based on the measurement of surface roughness experimental results, the factor that has the greatest influence on the level of surface roughness is feed rate of 67.9%, followed by spindle speed of 15.4% and depth of cut of 3.3%. This proves that the optimization of the parameters that have been carried out has a very clear effect on surface roughness, where the smaller the value of feed rate, spindle speed and depth of cutting, the smaller the value of surface roughness will be.
Keywords: Piston Master Cylinder, CNC Lathe, Taguchi Method, Mastercam, Surface Roughness.
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