cover
Contact Name
M. A. Ade Saputra
Contact Email
m.a.adesaputra@ft.unsri.ac.id
Phone
+628117443011
Journal Mail Official
jrm@ft.unsri.ac.id
Editorial Address
Jl. Srijaya Negara, Bukit Besar, Palembang-Sumatera Selatan
Location
Kab. ogan ilir,
Sumatera selatan
INDONESIA
Jurnal Rekayasa Mesin
Published by Universitas Sriwijaya
ISSN : 14116553     EISSN : 23387009     DOI : https://doi.org/10.36706/jrm.v21i1
Jurnal Rekayasa Mesin (JRM) Jurusan Teknik Mesin Universitas Sriwijaya adalah sebuah jurnal blind peer-review yang didedikasikan untuk publikasi hasil penelitian yang berkualitas dalam bidang ilmu Teknik Mesin namun tak terbatas secara implisit. Semua publikasi di Jurnal Rekayasa Mesin ini bersifat akses terbuka yang memungkinkan artikel tersedia secara bebas online tanpa berlangganan apapun
Articles 63 Documents
Pengembangan Modul Elektronik Berbasis Website Mobile Friendly pada Mata Kuliah Elemen Mesin Dewi Puspita Sari; Darlius; Harlin
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i1.209

Abstract

Studi ini bertujuan untuk menghasilkan media pembelajaran berupa modul elektronik mata kuliah Elemen Mesin berbasis website mobile friendly yang valid, praktis dan efektif. Metode pengembangan yang digunakan adalah Model FourD. Model FourD dipilih karena memiliki tahapan yang lebih lengkap dibandingkan model lainnya. Berdasarkan hasil, penilaian materi dan media modul masing-masing sebesar 92% dan 93%, dimana ini dikategorikan valid. Lebih lanjut, berdasarkan hasil one to one, small group dan field test, modul elektronik Elemen Mesin ini dikategorikan praktis. Efektivitas modul dan materinya diuji dan dianalisis menggunakan standar gain. Hasil perhitungan menggunakan standar gain, modul dan materinya adalah efektif. Dengan demikian, modul dan materinya dapat dikatakan valid, praktis dan efektif untuk digunakan.
Simulasi Distribusi Temperatur pada Tungku Peleburan Alumunium Dengan Menggunakan Software Autodesk Simulation Mechanical 2016 helena astari; Irsyadi Yani; Nukman; Amir Arifin; Firdaus MS
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i1.212

Abstract

Sebagai salah satu bagian dari tungku peleburan, krusibel mempunyai peran yang penting. Krusibel pada sebuah tungku peleburan berfungsi sebagai wadah material yang akan dilebur. Material krusibel harus memiliki nilai titik lebur yang lebih tingggi dari pada alumunium. Kerusakan pada krusibel sering kali terjadi pada saat peleburan berlangsung, hal ini disebabkan temperatur pembakaran yang melebihi titik lebur dari material krusibel. Kerusakan yang sering terjadi pada krusibel tungku peleburan menyebabkan perlunya simulasi distribusi temperatur untuk menentukan material yang tepat digunakan pada krusibel. Simulasi ini dilakukan dengan menggunakan perangkat lunak Autodesk Mechanical Simulation 2016. Data-data yang diperlukan untuk melakukan simulasi ini adalah dimensi tungku peleburan, sifat mekanik material, dan data proses peleburan. Simulasi dimulai pertama kali dengan membuat model tungku peleburan alumunium. Data yang diinput pada perangkat lunak Autodesk Mechanical Simulation adalah data material pada tungku, serta data temperatur saat peleburan. Hasil dari simulasi ini adalah berupa grafik distribusi temperatur.
Pengaruh Pencelupan Panas Terhadap Umur Patah dan Laju Korosi ASTM A36 Dalam Aluminium 7xxx Nurhabibah Paramitha Eka Utami; Diah Kusuma Pratiwi
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v21i1.213

Abstract

The hot dipping method is one of the most commonly chosen measures to protect material from corrosion. The main objective of this study was to analyze the effect of hot dipping time variation in Aluminum 7xxx on corrosion resistance and fracture life of ASTM A36 by conducting corrosion testing, weight reduction measurements and fatigue test analysis. Corrosion test results show that the specimen with a hot dipping time of 2 minutes has a lower corrosion rate and less weight reduction. Observation of age fracture in 1º stress level using Torsee's Torsion Repeated and Bending Fatigue Machine shows that specimens with hot dipping time of 2 minutes in Aluminum 7xxx have a higher fatigue toughness value than specimens with hot dipping time of 1 minute in Aluminum 7xxx and non hot dipping specimens.
Pengelasan Lap Joint SS 304L Menggunakan TIG dan SMAW Berarus 90A dan 120A Diah Kusuma Pratiwi; Muhammad Fathi Ramadhan
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2020): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v20i1.214

Abstract

Stainless steel merupakan material yang sangat luas penggunaannya, baik dalam bidang industri, kontruksi, perkapalan dan lain sebagainya..seringkali memerlukan sambungan dengan pengelasan dengan busur listrik dan juga argon.Penelitian ini bertujuan untuk menganalisa perilaku fisik dan mekanik yang meliputi uji komposisi kimia, uji dye penetrant, uji metalografi, uji bending, uji kekerasan, Stainless Steel 304L yang di las menggunakan TIG dan SMAW yang masing- masing di las berarus 90A dan 120A. dari hasil Analisa pengujian komposisi kimia Stainless Steel 304L yang menggunakan XRF menunjukkan bahwa nilai unsur Cr adalah 18,52% yang berarti Stainless Steel 304L ini termasuk kelompok Austenitic Stainless Steel. Dari hasil pengujian dye penetrant didapatkan bahwa pada lasan SMAW terdapat cacat las porositas pada permukaan las nya. Sedanglan pada lasan TIG terdapat cacat las spatter akibat dari bunga api lasan yang jatuh pada permukaan spesimen. Dari hasil pengujian makro terlihat jelas pada kedua jenis pengelasan yang berupa daaerah lasan, daerah HAZ, dan logam induk. Sedangkan pada pengujian mikro terdapat butir halus pada lasan SMAW yang menandakan bahwa lasan tersebut keras dan sebaliknya pada lasan TIG terdapat butir yang kasar yang menandakan lasan tersebut lunak. dari hasil pengujian bending yang dilakukan masing-masing menggunakan 3 sampel menunjukkan bahwa nilai rata-rata tegangan lentur dari lasan SMAW adalah 377 GPa dan nilai rata-rata tegangan lentur dari lasan TIG adalah 333GPa. Begitu juga dengan hasil pengujian kekerasan dimana nilai rata-rata VHN tertinggi pada lasan SMAW yang berarus 120A dengan nilai 103.222 sedangkan nilai VHN terendah pada lasan TIG yang berarus 90A dengan nilai 96.420
Fabrikasi dan Karakterisasi Produk Stir-Squeeze Casting Komposit Daur Ulang Aluminium dengan Variasi Temperatur Gunawan, Gunawan; Bahar, Ricky Ramadhan; Saputra, M. A. Ade
Jurnal Rekayasa Mesin Vol. 22 No. 1 (2022): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v22i1.264

Abstract

AMC (Aluminum Matrix Composites) is a type of metal composite material with aluminum as its matrix and Fly Ash as reinforced or reinforcement of the Aluminum matrix. The method used to manufacture aluminum composites is the stir-squeeze casting method, using the parameters of pouring temperature 700, 750, 800⁰C, fraction weight of fly ash 12% and constant stirring speed of 350rpm and stirring time of 3 minutes. This test includes testing of hardness, impact, chemical composition (XRF), XRD, Density and ScanningElectron Micropskop (SEM), hardness values increased from 88Al12FA alloys with 700, 750, 800⁰C temperatures with a value of 117,971, 107,982 and 116,612 BHN, decreasing the impact value of each addition of the fly ash alloy material but at a temperature of 800akC the impact strength increased, the impact value was obtained in 88Al12FA with a temperature of 700⁰C of 15,954 joules, in 88Al12FA with temperaur of 750⁰C of 14,392 joules and in 88Al12FA with a temperature of 800⁰C of 17,185 joules. The results of chemical composition (XRF) are still many impurity factors at the time of casting. XRDresults have 4 peak list aluminum and 2 peak lists from other phases. The trend test results tend to increase as the percentage of pouring temperature increases. The SEM results revealed dimple, voids and debris in each specimen.
Studi Pengembangan Komposit Al/Al2O3 Berpori dengan Space Holder Latex terhadap Sifat Mekanik dan Fisik Gunawan, Gunawan; Sofyana, Reni; Arifin, Amir
Jurnal Rekayasa Mesin Vol. 22 No. 1 (2022): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v22i1.329

Abstract

Composite materials are combinations of multiple or more ingredients that have different materials used for materials and materials that have pores produced from space holder material. This study aims to identify aluminum metal as aluminum metal (aluminum metal foam) to the mechanical properties and physical properties (density and porosity) with the same temperature and holding time. Fabrication method is powder metallurgy, with compacting of 100 kg/cm2 and using a sintering temperature of 5000C with a holding time of 2 hours. Tests and observations made were Thermo Graviemetric Analysis (TGA) to determine the process of decreasing space space holder, X-Ray Diffraction (XRD) to characterize crystalline phases formed, test Density, Scanning Electron Microscopy (SEM).
Kajian Variasi Od Tube Heat Exchanger Shell & Tube terhadap Temperatur dan Laju Perpindahan Panas dengan Heat Transfer Research Inc Aji Abdillah Kharisma; Rangga Triatmaja
Jurnal Rekayasa Mesin Vol. 22 No. 2 (2022): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v22i2.191

Abstract

The metal slab production process requires a machine that works continuously. The machine used in the production of the metal slab is a hot strip mill which is run by a hydraulic system. The plate production process takes a long time, causing high heat temperatures in the machine, therefore it is necessary to require a heat exchanger to prevent excessive overheating. In this research, a study of the shell & tube heat exchanger will be carried out from the variation of the OD tube to the output to be produced, namely the heat transfer rate. The type of flow used is counterflow, double segmental baffle, two-pass tube passes with water fluid from the cooling tower on the tube side and oil fluid on the shell side and the design variations of the OD tube made are 19,050 mm, 22,225 mm, and 25,400 mm in the HTRI software.
Redesign Meja Las di CV. Cipta Karya Nurjannah; Aldo Elandri Putra
Jurnal Rekayasa Mesin Vol. 22 No. 2 (2022): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v22i2.193

Abstract

The table is one of the tools used for welding in CV. Cipta Karya. The table used is a self-made table without using a standard size, so sometimes in its use the operator often experiences problems such as having to bend over and a bad position. The redesign of the welding table uses an anthropometric approach with the NIDA method, with the aim of designing an ergonomic welding table so that the operator feels comfortable and safe while working. The results of the redesign of the welding table are with an extension table to adjust the workpiece used, a toolbox storage area, table pores to absorb smoke during welding, and there is a smoke sensor as a safety device for the operator. The size of the welding table that has been redesigned, without the extension table, is 171x82x107 cm, while the size of the welding table with the extension table is 250x120x107 cm.
Analisis Distribusi Tegangan, Regangan, dan Perpindahan Prostesis Diskus Intervertebralis pada Posisi Fleksi Zainal Abidin; Muhammad Fadly Ramadhan
Jurnal Rekayasa Mesin Vol. 22 No. 2 (2022): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v22i2.199

Abstract

Total intervertebral disc replacement using prosthesis is one of treatments for degenerative intervertebral disc. This prosthesis must accommodate loads from the lumbar spine. This research performed an analysis of stress, strain, and displacement distribution of a ProDisc-L® prosthesis developed by Centinel Spine® installed on an L4-L5 segment of lumbar spine model of a 21 years old man. The simulation performed with two positions; standing upright and flexion, with loads applied are 750 N and 7,5 Nm respectively. Maximum Von Mises stress resulted from the standing upright and flexion simulations are 187,971 MPa and 555,113 MPa respectively. The stress on standing upright position can be considered safe as it is still below the yield stress of the endplate material (σy = 527 MPa), meanwhile the stress on flexion position can be considered unsafe as it is over the yield stress of the endplate material (σy = 527 MPa). Maximum strain resulted from the standing upright and flexion simulations are 3,9% and 1,7% respectively. Maximum displacement resulted from the standing upright and flexion simulations are 0,30 mm and 0,36 mm respectively, which can be concluded that the displacement was still under the maximum displacement allowed (1 mm).
Pengaruh Intercritical Quenching dan Normalizing terhadap Laju korosi dan Struktur Mikro Mild Steel Nurhabibah Paramitha Eka Utami; Diah Kusuma Pratiwi; Hendri Chandra; Randi Gaga Pisasefsio Pratama
Jurnal Rekayasa Mesin Vol. 23 No. 1 (2023): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v23i1.341

Abstract

Corroded materials get promote to the decrease in physical and mechanical properties which will affect to the decrease in the quality of the material and will have a huge impact on the industrial world. The purpose of this research is to observe the effect of the intercritical heating temperature of 750 °C with the quenching and normalizing cooling method due to the corrosion rate and its effect on the phenomenon of hardness change values in mild steel. The tests that was conducted are corrosion testing and hardness testing on ASTM A36. The results showed that there was a significant decrease in the corrosion rate and hardness values in the normalizing test sample, while in the quenching test sample there was an increase in the hardness value which that led to the presence of a ferrite – martensite dual phase on the surface of the quenching specimen which reduced ductility and increased the hardness value of mild steel. Keywords: ASTM A36, Corrosion, Micro structure, Quenching, Normalizing