Parameter pemotongan pada nilai minimum rata-rata kekasaran permukaan yang paling optimal berdasarkan karakteristik kualitas smaller is better (semakin kecil semakin baik) adalah pada kondisi cutting speed 2300 rpm, feed rate 320 mm/min, dan depth of cut 0,5 mm dengan hasil nilai kekasaran permukaan 1,46 µm. Hasil yang telah didapatkan menunjukkan bahwa parameter kecepatan pemotogan cutting speed dan feed rate mempunyai pengaruh yang signifikan terhadap nilai getaran pemotongan dan kekasaran permukaan. Kata kunci: Parameter pemotongan, getaran pemotongan, kekasaran permukaan


Deskripsi Lain

The machining process is carried out by removing unnecessary parts of the workpiece into chips until they conform to the desired shape. Milling is a machining process to produce flat workpieces other shapes such profiles, radii, and cylinders with a certain size and quality. In the milling machining process, the combination of parameters of cutting speed, feed rate, and depth of cut has a significant influence on the desired quality. The purpose of this study was to determine the optimal combination of CNC milling machining parameters to minimize the value of cutting vibration and surface roughness on Aluminum 6061. This study used the Taguchi method with an orthogonal array experimental design to determine the optimal combination of parameters to optimize the response of cutting vibration and surface roughness and cutting vibration. Based on the original experimental design used in the Taguchi method, 27 experimental data are needed. The most optimal combination of parameters on vibration acceleration and vibration speed based on quality characteristics smaller is the better the condition of a cutting speed of 3200, a feed rate of 320, and a depth of cut of 0.5 with the resulting value for vibration acceleration of 0.233 and vibration velocity of 9.833. The cutting parameter at the minimum value of the most optimal average surface roughness based on quality characteristics the smaller is better is the condition of cutting speed 2300, feed rate 320, and depth of cut 0.5 with the result surface roughness value of 1.46 The results that have been obtained indicate that the parameters of cutting speed and feed rate have a significant influence on the value of cutting vibration and surface roughness