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Budiman, Arie Yudha
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Analisis Pengaruh Variasi Putaran Spindel Dan Laju Pemakanan Dengan Pendingin CO2 Terhadap Kekasaran Permukaan Pada Proses Bubut Finishing Baja AISI 1045 Rizal, Rio Abu; Asmadi, Asmadi; Budiman, Arie Yudha
Jurnal Multidisiplin Dehasen (MUDE) Vol 4 No 4 (2025): Oktober
Publisher : LPPJPHKI Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/mude.v4i4.9329

Abstract

The lathe process is part of machining, namely The machining process was carried out on the outer surface of a cylindrical or flat workpiece using a lathe machine, followed by testing with three variations of spindle speed and feed rate to determine their effect on the surface roughness of the workpiece. Subsequently, tests were conducted using three different spindle speed and feed rate settings to evaluate their impact on the surface roughness of the resulting workpiece. In addition, from previous studies, the test results using variations of N (spindle rotation) with Rpm 255, Rpm 585, and Rpm 900, and Variation f (feed) 0.0803 mm / rev, 0.1229 mm / rev, 0.1700 mm / rev, whether the Ra value obtained decreased with increasing spindle rotation, and increasing feed rate will make the surface roughness of the workpiece rougher, the controlled variables in this study were AISI 1045 steel specimen material, spindle rotation speed, CO2 coolant. from the data obtained, the results of the Ra value that decreases are inversely proportional to the spindle rotation, in other words, the greater the spindle rotation, the smaller or smoother the Ra value produced. However, on the contrary, the faster the feed rate, the more directly proportional to the increasing roughness values ​​of Ra, in other words, the greater the feed rate, the greater or rougher the value and results of Ra.
Analisis Pengaruh Variasi Parameter Pemotongan Terhadap Kekasaran Permukaan Pada Proses Bubut Menggunakan Metode Taguchi Arga, Deni Tri; Pusvyta, Yeny; Budiman, Arie Yudha
Jurnal Multidisiplin Dehasen (MUDE) Vol 4 No 4 (2025): Oktober
Publisher : LPPJPHKI Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/mude.v4i4.9330

Abstract

This study aims to analyze the effect of cutting parameter variations on surface roughness in the turning process of AISI 1045 steel using the Taguchi method. The cutting parameters varied include spindle speed (rpm), feed rate (mm/rev), and depth of cut (mm). Experiments were carried out using a conventional lathe with a carbide insert (DCMT 070204 – PM 4335) and an orthogonal array design L9(3³). The analysis was conducted using the signal-to-noise (S/N) ratio with the smaller is better criterion and analysis of variance (ANOVA) to evaluate the contribution of each factor to surface roughness. The results show that the feed rate had the most significant effect, contributing 65.69% (F-value = 9.80; P-value = 0.093), followed by spindle speed at 22.04% (F-value = 3.29; P-value = 0.233), and depth of cut at 5.57% (F-value = 0.83; P-value = 0.546). The optimal parameter combination that yielded the lowest surface roughness consisted of a spindle speed of 900 rpm, a feed rate of 0.0803 mm/rev, and a depth of cut of 0.2 mm. These findings confirm the effectiveness of the Taguchi method in identifying dominant parameters with a minimal number of experimental runs.
Analisa Rancang Bangun Mesin Pencacah Rumput Untuk Pakan Ternak Liandy, Andry Jefry; Pusvyta, Yeny; Budiman, Arie Yudha
Jurnal Multidisiplin Dehasen (MUDE) Vol 4 No 4 (2025): Oktober
Publisher : LPPJPHKI Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/mude.v4i4.9332

Abstract

Livestock farmers need to provide sufficient grass to be cut into animal feed every day. Farmers in Pinrang and the surrounding area still use sickles to cut grass. Therefore, when the grass is dense, it requires additional time and labor. The purpose of this grass cutting machine for animal feed was to build a grass chopper and assess its production capacity and effectiveness. Test data was analyzed using a comparative approach, which reflects the productivity level of the equipment. The findings showed that the grass cutting process involves rotating cutting blades. The selected transmission system has a single transmission consisting of a pair of 2.5 mm diameter pulleys for the motor and a 2.5 mm diameter pulley for the drive component. Chopping 0.5 kg of elephant grass using three cutting blades at rotational speeds of 730 rpm, 1100 rpm, and 1850 rpm took 8 seconds, 9.2 seconds, and 10.6 seconds, respectively. The analysis showed that the optimal method for chopping grass is to use three cutting blades. From this data, it can be concluded that as the chopper's rotational speed increases, the resulting chopped capacity also increases.
Analisa Pengaruh Kecepatan Spindel Dan Kecepatan Makan Terhadap Kekasaran Permukaan Pada Proses Frais Tepi Baja St 37 Saputra, Ammar Wahyu Agung; Afriany, Reny; Budiman, Arie Yudha
Jurnal Multidisiplin Dehasen (MUDE) Vol 4 No 4 (2025): Oktober
Publisher : LPPJPHKI Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/mude.v4i4.9333

Abstract

This study aims to examine the effect of spindle speed and feed rate on surface roughness in the edge milling process using ST 37 steel material. A smooth surface finish is one of the main indicators of machining quality, as it directly relates to wear resistance, friction, and the overall performance of mechanical components. The independent variables in this research are spindle speeds (360 rpm, 580 rpm, and 875 rpm) and feed rates (40 mm/min, 185 mm/min, and 285 mm/min), while the dependent variable is surface roughness (Ra). The machining process was carried out using an Optimum vertical milling machine with a 10 mm diameter HSS endmill cutter. Surface roughness measurements were performed using a Surface Roughness Tester, model SJ-310. The test results indicate that increasing spindle speed tends to reduce surface roughness, resulting in a smoother finish. In contrast, higher feed rates lead to increased surface roughness. The combination of the highest spindle speed (875 rpm) and the lowest feed rate (40 mm/min) produced the smoothest surface. These findings confirm that selecting the appropriate machining parameters significantly affects the final surface quality in the milling process.
Co-Authors afriany, reny Arga, Deni Tri Asmadi asmadi Liandy, Andry Jefry Rizal, Rio Abu Saputra, Ammar Wahyu Agung Yeny Pusvyta, Yeny