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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Journal of Mechanical Engineering Science and Technology Briliant: Jurnal Riset dan Konseptual Turbulen : Jurnal Teknik Mesin JOURNAL OF SCIENCE AND APPLIED ENGINEERING Jurnal Elemen Jurnal Energi dan Teknologi Manufaktur Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Pengabdian dan Pemberdayaan Nusantara (JPPNu) Bulletin of Community Engagement Logic : Jurnal Rancang Bangun Dan Teknologi Asian Journal Science and Engineering Jurnal Teknik Ilmu dan Aplikasi Journal of Mechanical Engineering Jurnal Polimesin Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Venus: Jurnal Publikasi Rumpun Ilmu Teknik Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Evrimata: Journal of Mechanical Engineering
Eko Yudiyanto
Politeknik Negeri Malang
Religion Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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The Effect of Fuel Pump Pressure and Number of Injector Holes on 150cc Matic Motorcycle Performance Santoso, Santoso; Yulianto, Fian Arif; Yudiyanto, Eko; Aditya, Candra; Sabarudin, Suriansyah
Asian Journal Science and Engineering Vol. 2 No. 2 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i2.1020

Abstract

This study aims to evaluate the effects of increasing fuel pump pressure and varying the number of holes in the injector on engine performance. The fuel system in the engine has evolved from carburettor to injection system to improve the efficiency of fuel usage. In this study, the fuel pump pressure was increased to three levels, namely 2.5 bar, 3 bar, and 3.5 bar. In addition, variations in the number of holes in the injector were also tested using 3-hole, 6-hole, and 8-hole injectors. Engine performance was evaluated based on the power and torque produced. The research method used is experimental with power and torque measurements as engine performance data. The results showed that increasing fuel pump pressure and varying the number of holes in the injector had a significant effect on engine performance. Increasing the fuel pump pressure to 3.5 bar results in an increase in engine power and torque. The best power test results were obtained at a fuel pump pressure of 3 bar with a combination of 6-hole injectors, producing a maximum power of 11.63 HP at 6000 rpm engine speed. While the best torque test results were obtained at a fuel pump pressure of 3.5 bar with a combination of 3-hole injectors, producing a maximum torque of 43.10 Nm at 3000 rpm. The variation in the number of holes in the injector shows that the use of injectors with more holes tends to increase engine power and torque. Keywords: Engine Performance, Fuel Pump Pressure, Fuel Efficiency Injector Holes, Injection System
EFFECT OF STATIC THERMAL TENSIONING AND PREHEATING ON ANGULAR DISTORTION IN FCAW WELDED SS400 STEEL CORNER JOINTS Susilo, Sugeng Hadi; yudiyanto, eko; Setiawan, Agus; Khambali, Khambali; Suryanto; Alauddin, Falih
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 24 No. 2 (2024): July
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v24i2.39-48

Abstract

FCAW welding is an automated welding process that employs a wire roll electrode to melt metal, using flux or powder within the electrode's core for protection. A common issue with FCAW welding is the occurrence of angular distortion and alterations in the length and width dimensions, particularly in thin plate iron materials, due to residual stresses from the welding process. This research aims to assess the impact of static thermal tensioning, preheating, and their combination on angular distortion in SS400 steel corner joints during FCAW welding, considering heat input during welding. True experimental research methodology was employed, with variations in preheating temperatures of 200°C, 250°C, 300°C, static thermal tensioning at 150°C, 200°C, 250°C, transient thermal tensioning at 150°C, 200°C, 250°C, and a reference method with no treatment to determine the welding approach that minimizes angular distortion. The material used was 3mm thick SS400 steel. Data analysis was performed using Minitab 18 software and the One-Way Anova method. The research results indicate a significant influence of static thermal tensioning, preheating, and their combination on angular distortion. The optimal welding methods identified are preheating-static thermal tensioning at 89°55', preheating-transient thermal tensioning at 89°50', static thermal tensioning at 150°C at 89°45', transient thermal tensioning at 150°C at 89°40', and preheating at 200°C at 89°35'.
Analisis Performa Mesin CNC Milling Mini 3 Sumbu Terhadap Akurasi Gerak Pemotongan Dwi Saputra, Luqman; Yudiyanto, Eko
Journal of Mechanical Engineering Vol. 1 No. 3 (2024): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v1i3.3117

Abstract

Mesin CNC Milling adalah alat potong yang dioperasikan oleh mesin yang diprogram dan dikelola oleh sistem kontrol komputer untuk memotong material benda kerja secara akurat. Mesin CNC milling memiliki 3 sumbu yaitu X, Y, dan Z sebagai sumbu geraknya yang dapat memotong benda kerja dengan proses pengerjaan yang cepat, teliti, dan keakuratan tinggi. Parameter kecepatan pemakanan dan diameter cutter pada proses pemakanan akan dapat mempengaruhi kualitas hasil pada akurasi pemotongan benda kerja hasil proses pemakanan. Permasalahannya adalah pada kualitas hasil proses mesin CNC milling dipengaruhi pada parameter kecepatan potong dan diameter cutter yang digunakan. Metode penelitian yang digunakan adalah kuantitatif untuk pengambilan data menggunakan eksperimen dengan variasi kecepatan pemakanan (816mm/menit, 979mm/menit, 1152mm/menit, 1728mm/menit) dengan variasi diameter cutter yang digunakan adalah (2, 4, 6mm) dengan material pahat adalah HSS dengan material benda kerja yang digunakan adalah alumunium. Hasil penelitian ini didapatkan bahwa mesin CNC Milling Mini 3 Sumbu dapat mengerjakan proses pemesinan dengan toleransi ±0,1mm. Faktor yang menyebabkan penyimpangan adalah setting zero point dan proses perakitan perakitan rangka, ball screw, Linear motion guide dan lain-lain
Small PLTS Off Grid 240 WP on Residential House Rooftop Puspitasari, Etik; Eko Yudiyanto; Lisa Agustriyana; Nila Alia
Evrimata: Journal of Mechanical Engineering Vol. 01 No. 03, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.v1i03.56

Abstract

Small PLTS on residential rooftops are now being widely applied. It can contribute to using alternative energy to support government programs to save electricity costs. It can also be used as backup electricity when PLN power outage. The purpose of this research is to be able to calculate the use of electric power in residential homes, design and make small PLTS off grid 240 WP from the use of electric power, calculate BEP when the payback time of the total investment in the procurement of small PLTS 240 WP with DC and AC systems. 240 WP power on the rooftop of a residential house is carried out for a load of 8 lights AC with 6 watts and one fan. This research showed that the total daily electric power usage was 0.55 kWh/day or 16.5 kWh/month. The design of 240 WP PLTS on the rooftop of a residential house according to the total household electricity needs of 550 watts/day requires core equipment such as two solar panels (120 WP), one battery (12 V 100 Ah), Inverter (12 V to 220 V) = 1000 Watt or 1 kWh as much as one piece, SCC = 20 A as much as one piece. The results of making 240 WP PLTS on the rooftop of a residential house accorded to the total electrical power needs of the household. Break Even Point on this application of 240WP solar power PLTS on residential rooftops with 1300 V power will return capital in 19.5 years. Where the total investment cost of procuring 240 WP PLTS is Rp. 5,558,000, and the cost of electricity per month from the above load is Rp. 23,850 / month or Rp. 286,200 / year.
Analisis Kekuatan Lentur Pegas Daun Truk dan Mobil Hasil Tempering Raihan Insan Nararya; Kris Witono; Asrori Asrori; Eko Yudiyanto; Syamsul Hadi
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 1 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v3i1.717

Abstract

Leaf springs are one of the suspension systems that are still widely used in various modes of transport such as cars and trucks. The spring functions to support the load and reduce vibration from operational activities. This study aims to analyse the bending strength and hardness of steel leaf springs of trucks and cars resulting from tempering heat treatment. The three point bending method was used as the flexural strength testing method and the Rockwell C Hardness method testing was used for hardness testing with leaf springs in raw, tempered 460°C, and tempered 510°C conditions. From the results of the study, the highest average bending strength value of 3733,55 MPa was obtained and an average roughness value of 31,8 HR was obtained for the 510°C tempered truck leaf springs. This also applies to the 510°C tempered car leaf springs, where the average bending strength value obtained is 3392,65 MPa and the average hardness value obtained is 29,5 HR. Thus, it is recommended that tempering heat treatment that can be applied to truck and car leaf springs be carried out at 510°C to increase the bending strength and ductility of the leaf springs.
Pelatihan Pengelasan Untuk Siswa sebagai Media Pembelajaran Kewirausahaan di SMK Muhammadiyah 1 Malang Elka Faizal; Sugeng Hadi Susilo; Achmad Walid; Eko Yudiyanto; Gumono
Bulletin of Community Engagement Vol. 4 No. 2 (2024): Bulletin of Community Engagement
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bce.v4i2.1449

Abstract

In learning in the field of entrepreneurship at SMKM 1 Malang it is written about basic competencies, namely demonstrating scientific behavior. Some of the problems in realizing scientific behavior in entrepreneurship learning are the limited practicum teaching aids in partner schools. For example, for learning welding methods using electric welding. Besides that, students' knowledge about welding is still lacking and there are no welding machines available at SMKM 1 Malang. This needs to be improved by providing more teaching aids with a touch of the latest technology so that it can increase students' learning capacity, especially regarding welding. The community service activities proposed through this scheme will be implemented in several stages including: (1) Carrying out training for students on welding techniques; (2) Providing welding machine facilities for learning welding at vocational schools; (3) Provide assistance in welding learning so that the expected learning outcomes are obtained, namely fostering scientific, creative, innovative behavior and high curiosity; (4) Evaluate the output and outcomes by giving practical assignments and questionnaires to students related to the entrepreneurial learning model using an electric welding machine.  
Surface Analysis and Material Elements in the Excavator Tooth Bucket which is affected by corrosion with the SEM and EDX method yudiyanto, eko; Susilo, Sugeng; Sulistyono, Sulistyono
Asian Journal Science and Engineering Vol. 3 No. 1 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i1.1761

Abstract

Corrosion in excavator tooth buckets is a major issue in the heavy equipment industry, especially in mining and construction. Exposure to water, humidity, and chemicals accelerates corrosion, reducing strength and wear resistance, which shortens component life and lowers operational efficiency. This study analyzes surface structure and material composition changes due to corrosion, aiming to enhance material durability through better selection and design. Using Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray Spectroscopy (EDX), corrosion effects on S45C steel were examined at up to 5000x magnification. The results show increased oxygen (O) from 3.56 WT% to 25.53 WT% and decreased iron (Fe) from 84.21 WT% to 59.35 WT%, indicating severe oxidation. Identified corrosion types include uniform and gap corrosion, highlighting the need for corrosion-resistant materials and protective coatings to improve excavator reliability
Pengaruh Kecepatan Pemakanan dan Variasi Jenis Material terhadap Konsumsi Energi Proses Drilling Gumelar, Briyan Adit; Yudiyanto, Eko
Journal of Mechanical Engineering Vol. 2 No. 3 (2025): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v2i3.4586

Abstract

Penelitian ini dilakukan bertujuan untuk mengetahui pengaruh parameter pemesinan dan variasi material terhadap konsumsi energi pada proses drilling. Metode penelitian yang digunakan adalah metode kuantitatif dengan menggunakan eksperimen. Pada penelitian ini memvariasikan kecepatan pemakanan dengan nilai 18, 37, dan 55 mm/menit dan variasi jenis material yang digunakan adalah Aluminium 6061, ST 37, dan ST 40 terhadap konsumsi energi. Proses penelitian dilakukan dengan menghitung konsumsi energi dan energi spesifik berdasarkan material removal rate (MRR). Hasil pada penelitian ini didapatkan bahwa pada Aluminium 6061, terdapat peningkatan kecepatan pemakanan secara signifikan dengan menurunkan konsumsi energi total dari 4499,91 J menjadi 2028,52 J dan energi spesifik dari 13,77 J/mm³ menjadi 4,83 J/mm³. Tetapi, pada material ST 37 dan ST 40, konsumsi energi kembali meningkat pada kecepatan 55 mm/menit setelah menurun di 37 mm/menit. Energi spesifik untuk ketiga material menunjukkan tren penurunan seiring meningkatnya MRR, bahwa energi spesifik Aluminium 4,8–13,9 J/mm³ lebih tinggi dari rentang 0,4–1,1 J/mm³. Sedangkan pada material ST 37 dan ST 40 5,8–16,4 J/mm³ berada dalam rentang standar baja 2,7–9,3 J/mm³. Dari penelitian ini dapat diketahui bahwa pada kecepatan tinggi, meskipun terdapat penurunan energi spesifik, namum konsumsi energi justru meningkat. Ini terjadi karena peningkatan gaya pemotongan yang membutuhkan daya lebih besar. Sehingga pentingnya memilih kecepatan pemakanan yang tepat sesuai jenis material untuk dapat munurukan konsumsi energi dalam proses drilling.
Analisis Pengaruh Variasi Pelumas Sintetik dan Putaran Poros Terhadap Temperatur dan Rugi Energi Pada Sistem Mekanis Habibi, Krisna; Yudiyanto, Eko
Journal of Mechanical Engineering Vol. 2 No. 3 (2025): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jme.v2i3.4678

Abstract

Gesekan pada sistem mekanis menyebabkan peningkatan suhu dan rugi energi yang berdampak pada penurunan efisiensi kinerja. Pemilihan pelumas dengan karakteristik yang tepat menjadi salah satu faktor penting untuk mengurangi permasalahan tersebut. Penelitian ini bertujuan menganalisis pengaruh variasi jenis pelumas sintetik dan putaran poros terhadap temperatur kerja dan energi yang hilang pada bantalan luncur. Metode eksperimen digunakan dengan tiga jenis pelumas, yaitu semi-sintetik, full-sintetik, dan sintetik ester, pada tiga tingkat putaran poros: 1500, 2000 dan 2500 rpm. Temperatur diukur menggunakan thermometer digital, sedangkan rugi energi dihitung menggunakan persamaan W = V x I x t. Hasil penelitian menunjukkan peningkatan putaran poros berbanding lurus dengan kenaikan suhu dan rugi energi. Pelumas semi-sintetik memiliki performa terendah dengan suhu 48,8°C dan rugi energi 453,15 kJ pada 2500 rpm akibat kestabilan termal rendah dan viskositas tinggi (15,8 cSt). Full-sintetik lebih stabil dengan suhu 47,0°C dan rugi energi 448,36 kJ. Sintetik ester paling efisien dengan suhu 45,3°C dan rugi energi 437,76 kJ karena viskositas lebih rendah (13,6 cSt) dan kestabilan termal tinggi. Pelumas ini direkomendasikan untuk aplikasi mekanis berkecepatan tinggi.
Toolpath Motion Strategy and Feed Rate in CNC Milling on Energy Consumption of Machining Process Saputra, Luqman Dwi; Yudiyanto, Eko
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025p114

Abstract

The use of CNC milling machines to produce components, especially aluminum brackets used for automotive, is one of the advances in the industrial field. The use of CNC milling machines has the advantage of producing processes with speed accuracy, and better workpiece quality than conventional machines. This research investigates energy consumption in the CNC milling process by varying the toolpath motion strategies—Zigzag, Constant Overlap Spiral, Parallel Spiral, and Parallel Spiral Clean Corners—as well as feed rates of 700 mm/min, 800 mm/min, 900 mm/min, and 1000 mm/min. The goal is to find out the best parameters for using energy in the machining process. The material used in this research is Aluminum 6061. The shape tested is a bracket. The simulation was conducted to determine the machining process time using Mastercam software. The simulation results indicate that the Zigzag toolpath motion strategy at a feed rate of 1000 mm/min produces the lowest energy consumption (307.620 Kilojoules) whereas the Parallel Spiral Clean Corners toolpath at a feed rate of 700 mm/min produce the highest energy consumption (457.142 Kilojoules). The selection of appropriate machining parameters has a significant influence on the efficiency of processing time and production costs. By selecting the right toolpath motion strategy and feeding parameters, the manufacturing industry can increase productivity and reduce production costs more effectively.
Co-Authors Adikusuma, Thomas Agus Hardjito Agus Setiawan Agus Sujatmiko Akhlis Rizza, Muhammad Alauddin, Falih Amrullah, Radhi Nurvian Amrullah, Utsman Syah Asrori Asrori BAYU PRANOTO Cahyono, Aldio Dita Candra Aditya Deny Arisandi Dwi Saputra, Luqman Elka Faizal Etik Puspitasari, Etik Fatkhur Rohman Gumelar, Briyan Adit gumono Gunawan, Chandra Habibi, Krisna Hadi Susilo, Sugeng Haris Puspito Buwono Indra Kurniawan, Bakti Khambali, Khambali Kris Witono Kurniawan Kurniawan Lisa Agustriyana Listiyono Marta, Akbar Andika Mochammad Muzaki Mohammad Dzakiyul Fikri Mohammad Noor Hidayat Muhammad Afif Bahrain Muhammad Ammar Muhammad Fakhruddin Nila Alia Nugroho, Pipit Wahyu Pondi Udianto Pranoto, Bayu Purwoto, Eko Rahmad, Cahya Raihan Insan Nararya Ridho Surya Setiabudi Rifa’i, Muhamad SANTOSO SANTOSO Saputra, Luqman Dwi Sarjiyana Sarjiyana Satworo Adiwidodo Sharif, Safian Sugeng Hadi Susilo Sugeng Susilo, Sugeng Suhaimi, Mohd Azlan Sulistyono Sulistyono Suriansyah Sabarudin Suryanto Susilo, Sugeng Hadi Syamsul Hadi Syamsul Hadi Syamsul Ph.D M.A. Hadi Walid, Achmad Weddakarti, Eva Yulianto, Fian Arif