OPTIMIZATION OF FEED RATE AND DEPTH OF CUT OF CNC TURNING LEADWELL LTC-200 AGAINST SURFACE ROUGHNESS OF 6061 SERIES ALUMINUM

OPTIMALISASI FEED RATE DAN DEPTH OF CUT CNC TURNING LEADWELL LTC-200 TERHADAP KEKASARAN PERMUKAAN ALUMINIUM SERI 6061

Abstract

Along with the rapid development of the times. Many technologies make it easier for humans in daily
life and work. One of them is in the manufacturing industry, the machining process is very important
for the production process. To produce good product quality, the machining process using CNC lathe
is a solution for high accuracy and efficient workmanship, especially for production processes that
use lathes. There are several factors that affect the roughness value of a production result such as
cutting speed, feed rate, depth of cut. The data collection process is carried out using the factorial
DOE method to determine the combination of factors and levels. After machining is completed, the
surface roughness of the 6061 aluminum specimen is measured using a surface roughness tester. The
results of the study showed that the optimal combination of feed rate and depth of cut in the Leadwell
LTC-200 CNC turning process in producing low surface roughness was at a feed rate of 0.05 mm/rev
and a depth of cut of 0.2 mm with an average surface roughness value of 0.352 µm. or equivalent to
N5.