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Program Studi Sarjana Terapan Teknik Mesin Produksi dan Perawatan, Jurusan Teknik MesinPoliteknik Negeri Sriwijaya, Palembang, Indonesia
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MACHINERY: Jurnal Teknologi Terapan
Published by Politeknik Negeri Sriwijaya
ISSN : 27233359     EISSN : 2776673X     DOI : https://doi.org/10.5281/zenodo.
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
MACHINERY Jurnal Teknologi Terapan was published by Mechanical Engineering Department, Politeknik Negeri Sriwijaya to disseminate in the form of technical and vocational research results of undergraduate (Sarjana Terapan) students of Mechanical Engineering in the fields of Machinery, Manufacturing, Metallurgy Sciences and Engineering, Design Engineering, Heavy Machine to academics, practitioners and students as well as interested parties. MACHINERY accepts article submissions written in Indonesian and welcoming in English. Determination of articles published in Machinery Jurnal Teknologi Terapan is through a review process by best partner of MACHINERY by considering, among others: fulfillment of the standard requirements of journal publications, research methods used, significance, and contribution to the results of research on technical and vocational in Mechanical engineering field study.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 6 Documents
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Search results for , issue "Vol. 3 No. 3 (2022): Machinery:03032022" : 6 Documents clear
PENGARUH MEDIA PENDINGIN KADAR AIR GARAM TERHADAP KEKERASAN PADA HASIL PENGELASAN SMAW BAJA KARBON RENDAH Ryan Purbadilaga; Firdaus Firdaus; Didi Suryana
MACHINERY: Jurnal Teknologi Terapan Vol. 3 No. 3 (2022): Machinery:03032022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7247133

Abstract

Welding in the world of production and maintenance is widely used usually for machine construction in various fields. One of the most widely used materials for machine construction is low carbon steel with a carbon content of 0.05% - 0.30%. In this study, we will provide heat treatment to low carbon steel through a welding process using a cooling medium with variations in salt content. The purpose of this study was to see the effect of heat treatment by welding process on low carbon steel with cooling media with variations in salt water content. The welding method used in this study is the SMAW welding method, with cooling media in the form of: sea water, salt water with variations in salt content (10%, 20%, 30%) with 3 samples for one cooling medium. The hardness test method used is the Rockwell hardness test with tests carried out by taking 5 points for one sample. After testing, it was concluded that the average hardness increased with increasing salt content in the salt solution with the results of the hardness test, namely, seawater cooling media with an average hardness value of 88.37 HRB, cooling media with a salt content of 10% an average value of 88.37 HRB. The hardness produced is 96.6 HRB, the cooling medium with 20% salt content has an average hardness value of 105.83 HRB, the cooling medium with 30% salt content has an average hardness value of 114.1 HRB.
Pengaruh Media Pendingin Oli Bekas Pada Proses Quenching Terhadap Kekerasan Linggis Brongsong Gandi Hanggara; Fenoria Putri; Indra Gunawan
MACHINERY: Jurnal Teknologi Terapan Vol. 3 No. 3 (2022): Machinery:03032022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7246725

Abstract

The purpose of this study was to determine the effect of the quenching process that uses used oil as a cooling medium with temperature variations of 750oC, 850oC, and 900oC with a holding time of 30 and 40 minutes to the hardness of the eye of the brongsong crowbar which is often subjected to dullness. The main material used by the people of Sukadana village in making this brongsong crowbar is pipa carbon steel ASTM A106 grade B. This pipe belongs to medium carbon steel because it has a carbon element of 0.30%. After the heat treatment process of the brongsong crowbar specimen, hardness testing was carried out using a rockwell hardness test tool. The results of the hardness test were analyzed using ANOVA calculations. From the results of this study, it was found that the brongsong crowbar specimen experienced an increase in hardness, with the highest hardness value of 52.6 HRC obtained from the quenching process using used oil as a cooling medium and with a holding time of 40 minutes at a temperature of 850oC, while the lowest hardness value is obtained from the results of the quenching process using used oil cooling media with a holding time of 30 minutes at a temperature of 750oC of 38.8 HRC. So that it can be known that the highest hardness value is obtained from the results of the quenching process using used oil cooling media with a holding time of 40 minutes at a temperature of 850oC.
PENGARUH FEED RATE DAN DEEP OF CUT PROSES PERMESIN CNC ROUTER TERHADAP KEKASARAN PERMUKAAN AKRILIK Muhammad Aldias Putra; Almadora Anwar Sani; Iskandar Ismail; Rachmat D Sampurno
MACHINERY: Jurnal Teknologi Terapan Vol. 3 No. 3 (2022): Machinery:03032022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7246794

Abstract

Manufacturing machines are technologies that can help human work. One of them is the CNC router 3018. In the machining process of the CNC router, the level of surface roughness is one of the benchmarks for the quality of the resulting product. Departing from this problem, a tactic is needed in making machining parameter variables so that a good surface roughness value is obtained. The material used in this study is acrylic with a size of 70 × 65 × 5 mm, with a constant spindle speed of 1000 rpm, a variable feed rate of 200,300,400 mm/min and a varying depth of cut of 0.1,0,2,0.4 mm using a chisel made of tungsten carbide. One flute with a size of 3 mm. From the analysis that has been carried out, the lowest roughness level (Ra) is obtained under parameter conditions: spindle speed 1000 rpm, with a feed rate of 400 mm/min and a depth of cut 0.1 mm with a value of 0.654 m. the greatest value (Ra) is found at the spindle speed of 1000 rpm, with a feed rate of 300 and a deep of cut of 0.4 mm with a value of (Ra) 1,740 m, referring to the experiment using a variation of the feed rate, it was found that the relationship between the feed rate and the roughness value is negative with the equation y = -0.001x + 1.3634 this can be a reference in determining the value of surface roughness.
ANALISIS KEKASARAN MOLDING BERBASIS ADDITIVE MANUFACTURING MATERIAL POLYLACTIC ACID Muhammad Al Hafiz; Ahmad Junaidi; Ella Sundari
MACHINERY: Jurnal Teknologi Terapan Vol. 3 No. 3 (2022): Machinery:03032022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7246701

Abstract

At this time the development of technology has moved very fast. Humans need technology to facilitate every activity, 3D Printers continue to develop and are widely used in various countries. 3D printing uses a special printing machine to produce three-dimensional shapes. Molding or molding is a production process by forming raw materials using a rigid frame or model called a mold. This research was conducted to change the function of 3D printing which is usually to print prototypes into molds. as well as knowing the level of roughness of the mold that is printed. analysis using ANOVA that has been applied, it can be concluded that layer height: low, standard, high has an effect on the roughness of the printed molding, and it can be proven in the discussion chapter with Fcount 3.150 > Ftable 2.56. with a significant 0.034 < 0.05. and the lowest roughness results are printed using a layer height: 0.16 mm/s (high quality).
RANCANG BANGUN ALAT CETAK SEAL APAR CHUBB 6 KG POWDER (Ø32.60 MM & Ø11.40 MM) MENGGUNAKAN SISTEM HIDROLIK (PENGUJIAN PERFORMA) Novriadi Muhammad; Dwi Arnoldi; Fatahul Arifin
MACHINERY: Jurnal Teknologi Terapan Vol. 3 No. 3 (2022): Machinery:03032022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7246873

Abstract

In today's modern industry, there are many manufacturing machines of various types and different functions. A manufacturing machine is a tool that serves to facilitate the manufacture of components of an object. This study has a goal, namely to create an innovation in the world of mechanical engineering, especially in the field of compression molding with a hydraulic system using a bottle jack as the suppression system.The design of this seal press molding tool was designed and made by researchers in such a way with the aim that the tool can work optimally without failure. Testing on this tool is in the form of testing the performance of the jack with a pressure gauge installed and the production process which aims to determine the limits of the jack's ability in the production process in the hope of producing a perfect and precise o-ring seal.
OPTIMISASI MULTI-OBJEKTIF PADA KINETIKA PENGERINGAN KABINET SURYA Muhammad Irfan Dzaky; Muhammad Burhanuddin Fauzi
MACHINERY: Jurnal Teknologi Terapan Vol. 3 No. 3 (2022): Machinery:03032022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.7246820

Abstract

Drying is one method to increase the storage time of organic materials such as fruit, seeds and vegetables. The cheapest drying method that can be used is to use heat from the sun. The research carried out is to optimize the existing drying system using Design Expert software and MATLAB using the Multiobjective optimization genetic algorithm (MOGA) method. Based on the optimization that has been done, it can be concluded that the optimization results related to drying variables are flow rate, heat applied, drying load, and thickness which are seen based on the results of the minimum drying kinetics value and the minimum drying time on DE-MOGA, TOPSIS drying value. time (f1) is 35613.9 seconds and drying constant (f2) is 6,125 x 10-5 1/second with parameter flow rate (x1) is 0,037178 kg/second, heat input (x2) is 640,036 W/m2, loading density (x3) is 1.418 kg/m2, and thickness (x4) is 0.00662 m. The results of this optimization are very important to obtain optimal drying production results and the existing data can be used for design on other materials.

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