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All Journal Journal of Mechanical Science and Engineering Jurnal Rekayasa Mesin Jurnal Energi Dan Manufaktur Sinergi Indonesian Journal of Engineering and Science (IJES) Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Jurnal Pelita Sriwijaya International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)
Amrifan Saladin Mohruni
Mechanical Engineering Department Sriwijaya University
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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THIN WALLED CRYOGENIC MACHINING ON INCONEL OR AEROSPACE MATERIALS Arie Yudha Budiman; Amrifan Saladin Mohruni
Journal of Mechanical Science and Engineering Vol 7, No 1 (2020): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (415.347 KB)

Abstract

Conventional liquids and lubricants are widely used in machining processes throughout the world. However, this cutting liquid is the source of many environmental pollution problems. In order to reduce or eliminate the effect produced by cutting fluids, it is necessary to switch to a continuous machining technique such as using small amounts of cutting fluid, liquid nitrogen, vegetable oil or compressed air as a cooling lubrication medium. Cryogenic coolant is found to be more efficient, economical, cost-effective and environmentally friendly when compared to the conventional coolant, especially in mass production. In machining difficult-to-cut materials such as thin walled materials for the aerospace industry, cooling applications are needed. Ni-based superalloy, Inconel is a material for aerospace applications because of its high durability to wear and material that is resistant to oxidation and corrosion at high temperatures. This paper presents a review and explanation of thin wall machining using cryogenic cooling systems on inconel or aerospace materials.
PRODUCTION PLANNING AND CONTROL SYSTEM WITH JUST IN TIME AND LEAN PRODUCTION : A REVIEW Afriansyah Afriansyah; Amrifan Saladin Mohruni
Journal of Mechanical Science and Engineering Vol 6, No 2 (2019): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

Manufacturing can be defined as applying physical and/or chemical processes to modify the structure, properties and/or appearance of a given starting material to produce parts or products. Manufacturing often entails combining multiple parts for the creation of assembled products. This study aimed to establish a general understanding of development production planning and control and typical production such as just in time and lean production. Method of this study through literature review. This study described activities related to production planning and production control, the difference between lean production and traditional production (push system), and the structure of lean production as known as Toyota system manufacturing.
APPLICATION OF PRODUCT QUALITY ASSURANCE IN MANUFACTURE, CASE STUDY IN MECHANICAL ENGINEERING DEPARTMENT, SRIWIJAYA UNIVERSITY Amrillah Nugrasyah; Amrifan Saladin Mohruni
Journal of Mechanical Science and Engineering Vol 6, No 1 (2019): Journal of Mechanical Science and Engineering
Publisher : Universitas Sriwijaya

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Abstract

Product Quality Assurance (PQA) is a standard procedure to ensure the product quality in practical manufacturing engineering. In this study the PQA-procedure will be applied for academic assurance in Mechanical Engineering Department, Sriwijaya University. The objective of this study is to generate web based Academic Quality Assurance (AQA) in the Department, which accomplices with National Accreditation Agency for Higher Education (BAN-PT). The development of web based AQA was carried out using an open source PHP, MySQL, CSS and REST API to ensure the web integration with the existing website of Sriwijaya University. The results show that this application can overcome the existing problems when the Academic Quality Assurance was conducted manually. The AQA web can work smoothly
Optimasi Kondisi Pemesinan untuk Kekasaran Permukaan pada Proses Slot Milling Baja Tahan Karat AISI 304 Amrifan Saladin Mohruni; Erna Yuliwati; Redy Kholif Muhrobin
Jurnal Energi Dan Manufaktur Vol 8 No 1 (2015): April 2015
Publisher : Department of Mechanical Engineering, University of Udayana

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Abstract

Dalam slot millingbeberapa parameter berkontribusi penting untuk mencapai kekasaranpermukaan benda kerja yang sesuai dengan kebutuhan. Diantara parameter-parametertersebutadalah kecepatan potong dan laju pemakanan, yang untukpencarian parameterkondisi pemesinan yang optimum sangat diperlukan. Dalam rangka pencarian kondisipemesinan yang optimumperlu dibuat model matematis empirik yang dapat menggambarkanhubungan antara parameter-parameter tersebut. Pada penelitian ini pembuatan modelmatematik empirik dilakukan menggunakan metodologi permukaan respon (ResponseSurface Methodology) pada sebuah plat stainless steel AISI 304 dengan dimensi adalah 150mm x 100 mm x 10 mm. Dari hasil optimasi diperoleh bahwa kecepatan potong dan lajupemakanan yang menghasilkan respon Ra0,510 ?m yang optimal berturut-turut adalah 30m/min dan 0,15 mm/tooth. Sementara itu, nilai Ra yang terbesar yang diperoleh dalampengujian ini adalah 4,783 ?m.Kata kunci: optimasi,slot milling, stainless steel AISI 304, response surface methodologyIn slot milling, some parameters give important contribution to achieve required surfaceroughness of work pieces. These parameters are cutting speed and feed rate, which arerequired for finding of the optimum cutting conditions. In order to find this optimum cuttingcondition, it is necessity to generate the empirical mathematical model, which figured out therelationship among the involved parameters. In this study, the response surface methodology(RSM) was used in constructing of empirical mathematical models on stainless steels AISI304 (150 mm x 100 mm x 10 mm). The optimized surface roughness Ra0, 510 ?m wasresulted using cutting speed and feed rate 30 mm/min and 0,15 mm/tooth respectively. Incontrary, the maximum surface roughness Ra achieved is 4,783 ?m.Keywords: optimization, slot milling, stainless steel AISI 304, response surface methodology
The process mining method approach to analyze users’ behavior of internet in the Local Area Network of Sriwijaya University Muhammad Irfan Jambak; Amrifan S. Mohruni; Muhammad Ihsan Jambak; Endy Suherman
SINERGI Vol 26, No 2 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.2.003

Abstract

The Sriwijaya University internet network management unit does not yet have a standard formulation for implementing Bandwidth Management & Bandwidth Allocation. To provide the best service, they apply the Best-Effort Service concept. As a result, it requires a relatively large network capacity and bandwidth provision so that it has an impact on costs. Therefore, it is necessary to know how users use internet bandwidth as the basic principle of Bandwidth Management & Bandwidth Allocation. This study has completed how to determine the behavior of internet users on the campus LAN as a reason to evaluate internet bandwidth usage. With the Process Mining method, process mapping has been carried out for all access to internet usage from all faculties. As a result, the factors that characterize and need to be considered in bandwidth management are obtained. In order of significance are Total Access Length, Average Variance, Number of User Case IDs, Number of Non-Academic Ports, Number of Academic Ports, Number of Access Frequency, Number of Events, and Number of Ports of Service. 
WORK SCHEDULING PROGRAM DESIGN FOR LECTURE ATTENDANCE CONTROL AND LECTURER WORKLOAD CALCULATION WITH FINGERPRINT AND RFID IDENTIFICATION DEVICE M.A. Ade Saputra; Amrifan Saladin Mohruni; Irsyadi Yani
Indonesian Journal of Engineering and Science (IJES) Vol. 2 No. 3 (2021): Table of Contents
Publisher : Asosiasi Peneliti Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51630/ijes.v2i3.24

Abstract

The essential factor in achieving a good learning process is discipline in the lecture process. Students and lecturers are encouraged to be disciplined and active participants in the lecture process, allowing the Lecturer's principal duty of transforming and disseminating science and technology to become more concentrated. Furthermore, to eliminate overlapping lecture schedules, lecture hours, and lecture venues that do not meet needs, it is easier for stakeholders to monitor and regulate lecturers' and students' lecture attendance so that quick and accurate decision-making can be done. To establish discipline in school utilizing biometric identification technology (fingerprints) and Radio Frequency Identification (RFID) technology, developing application software to make it easier to manage work schedules is required. The Work Scheduling program is an online application built with the PHP programming language, MySQL database, and fingerprint and RFID identification support devices that are expected to be effective and efficient tools in the process of scheduling lectures and recording lecture attendance of students and lecturers, making it easier to publish lecture schedules.
Perancangan Aplikasi Pengujian Produk Berbasis Web; Studi Kasus pada Program Studi Program Profesi Insinyur dari Unsur Tenaga Pendidik Universitas Sriwijaya Nugrasyah, Amrillah; Berniko , Muhammad Aldy; Mohruni, Amrifan Saladin
Jurnal Rekayasa Mesin Vol. 24 No. 1 (2024): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v24i1.527

Abstract

Quality Assurance is a term that refers to an evaluation process that includes monitoring and guaranteeing the quality of something, one of which is Recognition of Past Learning (RPL). In this case, RPL is one of the educational pathways at Sriwijaya University in the Engineer Professional Study Program (PSSPI). This study aims to produce a product testing application for RPL student assessment that is not yet available. There are several tools and software used to design this application, such as Microsoft Visual Studio Code, MySQL, PHP, CSS, HTML, REST API, XAMPP, and also Laravel. This application is designed using the Waterfall method, meaning the next design process cannot be carried out if the previous design process has not been completed. There are 5 stages in this waterfall method, namely requirements definition, system and software design, implementation and unit testing, integration, and system testing, and operation and maintenance.
Finite Element Analysis of Reinforcement Design in Takeup Tower Under Dynamic Loading Conditions Praja Dilla Atos; Romli, Romli; Nanda Yusril Mahendra; Agung Mataram; Amrifan Saladin Mohruni
International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS) Vol. 2 No. 2 (2024): IJMEAS - May
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijmeas.v2i2.271

Abstract

This research focuses on the finite element analysis for the design of reinforcement towers under dynamic load conditions. The reinforcement tower is a crucial part of the retrieval system that supports the system’s optimal function. This study identifies critical areas and plans reinforcement design steps on the construction of the retrieval tower. Stress analysis helps determine reinforcement design steps based on established standards and analytical approaches. The finite element method is used to analyze the design of the retrieval tower. The model is meshed into small triangular parts to find solutions in the form of finite element analysis of reinforcement tower design under dynamic load conditions. The results of finite element computation show normal stress fluctuations and increased displacement over time, indicating material deformation. This analysis is essential for understanding material behavior and designing systems that can effectively withstand dynamic loads.
Palm Stearin as Alternative Binder for MIM: A Review Arifin, Amir; Sulong, Abu Bakar; Gunawan, Gunawan; Mohruni, Amrifan Saladin; Yani, Irsyadi
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 7 No 1 (2014): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v7i1.496

Abstract

Palm stearin is one of the fractionation process results from palm oil that is the largest commodities in the world. It has potentially as an alternative of binder in metal injection molding based on researches that conducted in Malaysia. Palm stearin can be combined with other binder to be a binder system with the function as lubricant and surfactant in a binder system. Based on experiments showed Palm stearin has fulfilled requirement as binder in MIM such as pseudoplastic behavior from rheological test and homogeneity of the feedstock. Palm stearin can replace conventional binders that commonly used in industry.
SOSIALISASI PENTINGNYA PENERAPAN KESELAMATAN, KESEHATAN KERJA DAN LINGKUNGAN (K3L) DI INDUSTRI KECIL MESIN PERKAKAS Yanis, Muhammad; Mohruni, Amrifan Saladin; Basri, Hasan; Firdaus, Aneka; Yani, Irsyadi; Saputra, M. A. Ade; Adanta, Dendy; Resti, Yulia; Yuliasari, Nova; Sari, Dewi Puspita; Teguh Prakoso, Akbar
Jurnal Lentera Nusantara Vol 4 No 1 (2025): Jurnal Pelita Sriwijaya
Publisher : Asosiasi Peneliti Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51630/jps.v4i1.179

Abstract

Keselamatan, Kesehatan Kerja dan Lingkungan (K3L) merupakan faktor penting dalam menciptakan tempat kerja yang aman, produktif, dan ramah lingkungan. Penerapan K3L di industri kecil mesin perkakas masih sering terabaikan karena kurangnya pemahaman terhadap risiko akibat kerja dan dampak lingkungan. Kegiatan pengabdian ini melakukan sosialisasi pentingnya penerapan K3L bagi pelaku usaha kecil mesin perkakas. Metode kegiatan meliputi pemaparan materi, diskusi-tanya jawab dan evaluasi serta hibah APD. Tempat kegiatan di bengkel las dan bubut Tris yang berada di Kelurahan Kebun Bunga Palembang. Kegiatan sosialisasi menunjukkan peningkatan pemahaman dan kesadaran bahaya di tempat kerja, pentingnya penggunaan APD, dan pengelolaan limbah yang bertanggung jawab. Dari semua materi yang disampaikan, terjadi peningkatan pemahaman rata-rata sebesar 33.3%. Sosialisasi dapat meningkatkan kesadaran K3L secara signifikan, namun agar penerapan secara konsisten maka perlu program lebih berdampak seperti pendampingan dan dukungan berkelanjutan.
Co-Authors Afriansyah Afriansyah Agung Mataram Amir Arifin Amrillah Nugrasyah Aneka Firdaus Arie Yudha Budiman Berniko , Muhammad Aldy Dendy Adanta Dewi Puspita Sari Endy Suherman Erna Yuliwati Gunawan Gunawan Hasan Basri Irsyadi Yani Jambak, Muhammad Ihsan M.A. Ade Saputra Muhammad Irfan Jambak Muhammad Yanis Nanda Yusril Mahendra Nova Yuliasari Nugrasyah, Amrillah Praja Dilla Atos Redy Kholif Muhrobin Romli Romli, Romli Saputra, M. A. Ade Sulong, Abu Bakar Teguh Prakoso, Akbar Yulia Resti