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All Journal TEKNIK Jurnal Ilmu Dasar Jurnal Simetris Jurnal Pengembangan Pendidikan Jurnal Teknosains Jurnal Teknologi SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Sinergi Journal of Engineering and Technological Sciences REKAYASA ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Litbang Industri EMITTER International Journal of Engineering Technology R.E.M (Rekyasa Energi Manufaktur) Jurnal Journal of Mechanical Engineering Science and Technology Panrita Abdi - Jurnal Pengabdian pada Masyarakat Turbo : Jurnal Program Studi Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Multitek Indonesia : Jurnal Ilmiah Jurnal Elemen ComTech: Computer, Mathematics and Engineering Applications Jurnal Teknologi Informasi dan Pendidikan Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Jurnal Riset Teknologi Industri J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin JURMA : Jurnal Program Mahasiswa Kreatif Jurnal Abdi Masyarakat Indonesia Jurnal Locus Penelitian dan Pengabdian Jurnal Litbang Industri Dedikasi: Jurnal Pengabdian Kepada Masyarakat National Multidisciplinary Sciences Jurnal Polimesin J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin

Mahros Darsin

Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Author-ID : 250305

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Kajian terhadap Tingkat Kerusakan Pahat pada Pembubutan dengan Metode Minimum Quantity Lubrication (MQL) Qoryah, Rika Dwi Hidayatul; Luviandy, Allen; Darsin, Mahros
TEKNIK Vol 41, No. 3 (2020): December 2020
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v41i3.27348

This study aims to observe the tool deterioration following application of minimum quantity lubrication method (MQL). The designed MQL system is completed with an Arduino controller system which was able to be either manually-controlled or automatically-controlled. The tool used in this study is DCMT 11 insert type. The Taguchi method using the Orthogonal Array L9 design was used to compile the design of experiments with variations in depth of cut, coolant composition, and cooling fluid application methods. Each variable consists of three levels. Tool deterioration evaluated by observing it under an optic microscope from three sides of the tool. There are four levels of tool deterioration. The value of tool deterioration of each tool is the accumulation of each side view. ANOVA analysis found that depth of cut, cutting tool composition and method of applying coolant influence tool deterioration in percentage by 32.69%, 17.30 % and 12.82% respectively. Moreover, the minimum tool deterioration would be achieved when using the parameter combination of depth of cut of 1.6 mm; mixture composition of 3:7; and using the temperature-controlled MQL.Â

Simulasi Gaya Pemotongan pada Proses Bubut dengan Software Third Wave Advantedge Qoryah, Rika Dwi Hidayatul; Sari, Herninda Ayu Meylinda; Darsin, Mahros; Mulyadi, Santoso
Jurnal Rekayasa Mesin Vol 12, No 2 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.02.17

The cutting force that reacts to cutting tool and workpieces will result deflection. Deflection is the cause of product deviation and vibration sources that can shorten the life of the cutting tool. Simulation of machining process is carried out to get an estimate of cutting force in some machining process conditions., then compare it to the experiments. The research aims to find out the influence of spindle rotary speed, feed rate and depth of cut on cutting forces in turning process with cutting tool HSS and workpiece Al 6061. This research uses three-dimensional simulation method using Third Wave AdvantEdge software. Following by comparison between the simulation with the experiments results. The simulation was in accordance to the experiments in term of the magnitude of the forces, from the biggest they are tangential, axial, and radial force respectively. Cutting force will decrease with increased spindle turning speed. Cutting force will increase with the rising feed rate and depth of cut. However, the simalution still highly deviate from the experiments at the rate of 71%, 44.3%, and 21.3% for axial, radial and tangential forces respectively. The possible cause of these high errors relates to forces measuring method in experiments.

Forces Perspective of Drillability of Titanium Alloy 6Al-2Sn-4Zr-6Mo Mahros Darsin; Timotius Pasang; Zhan Chen
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5825

This paper concerns on drillability of Ti-6Al-2Sn-4Zr-6Mo (Ti-6246) from the point view of thrust force (Fz) & torque (Mz) using a TiAlN CVD coated carbide tool. The condition of the material was varied with three different heat treatments. Whereas, the machining parameters were varied in cutting speed, feed rate and cooling application method. Taguchi method L-18 was employed to design the experiments. Both type of forces, thrust force and torque, were measured using a Kistler dynamometer, and the data were analyzed using a Minitab 17 software. The thrust force was influenced by the cutting speed 24%, depth of drilling 21%, heat treatment 13%, and feed rate 11%. The torque was influenced predominantly by feed rate up to 94%. Coolant application has no effect on reducing both thrust force as well as torque.

Measuring Feed Force in Machining Using a Strain Gage Salman Al Farisi Siregar; Agus Triono; Mahros Darsin; Santoso Mulyadi
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 6 No. 1 (2021)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v6i1.11928

Measuring the forces that work during machining has been being concerned by researchers for years. There are three main forces that work in turning: thrust force, axial force, and radial force. Thus, feeding force measurement is needed in machine manufacturing. This research attempts to develop measurement method through feeding force, using strain gauge sensor. The aim of measurement of feeding force in this research is to find out the influence parameter of machine towards feeding force. The research used experimental method with design experiment Taguchi to know the influence of machine parameters to feeding force in turning process. The measurement tool is strain gauge sensor connected to cutting tool. The workspace is alluminium 6061 with 15 mm in diameter and 150 mm in length. The parameters for this research are speed rate (140 rpm, 215 rpm, and 330 rpm), feed rate (0,043 mm/r , 0,065 mm/r , and 0,081 mm/r), and depth of cut (0,2 mm, 0,4 mm, and 0,6 mm). The result showed that speed rate is the most significant parameter, with the contribution percentage is 92 %. Speed rate and feed rate parameter have insignificant influence. The contribution percentage of speed rate is 2% while the feed rate has % contribution percentage. The conclusion of the research is that the bigger number of speed rate, the bigger feeding force it will have.

Literature Studies on Maintenance Management Soesatijono Soesatijono; Mahros Darsin
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 6 No. 1 (2021)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v6i1.12571

The purpose of this paper is to review from early days until recent time the development of maintenance management methods from maintenance textbooks to give a glance view for researcher and practitioner where maintenance start until recent development and practical application of maintenance management. The methodology approach is by reviewing an early age maintenance management, maintenance management on eighties, maintenance management on nineties and recent maintenance management. Comparing and categorizing maintenance management methods along with time will increase knowledge how to choose the right maintenance for practical application. From this review it found that the paper also revealed from time to time, maintenance management adapt and improve to gain more sustainable maintenance, including the new shift of paradigm of maintenance itself. The originality and contribution of this research is that the paper contains many maintenance management methods from maintenance textbooks, maintenance management methods elaborated in an easy way. Therefore, the importance of maintenance management could be properly understood. For further study, the paper suggest that research needed to study or apply on methods found in this paper on practical application whether will give a proper result or just nice on theoretical only.

OPTIMASI VARIASI DIAMETER NOZZLE, TEKANAN UDARA, DAN SUHU PENGERINGAN PADA PELAPISAN BAJA St37 MENGGUNAKAN METODE RESPONSE SURFACE Tri Surya Hutama; Mahros Darsin; Santoso Mulyadi
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 10, No 2 (2019): JURNAL SIMETRIS VOLUME 10 NO 2 TAHUN 2019
Publisher : Universitas Muria Kudus

Pengecatan adalah proses pelapisan yang diterapkan pada permukaan suatu benda. Tujuan dari pengecatan ada dua, yaitu protektif dan dekoratif. Dari segi protektif cat dapat dinilai dari ketebalan dan jika dari dekoratif cat dapat dilihat dari segi kekilapan. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh dari kombinasi parameter yang dapat menghasilkan ketebalan yang maksimum. Desain eksperimen yang digunakan adalah Response Surface Method (Box-Behnken design), 15 eksperimen dengan masing-masing 3 kali pengulangan. Kombinasi parameter dan level yang digunakan yaitu diameter nozzle (1.2mm, 1.3mm, dan 1.4mm), tekanan udara (2bar, 3bar, dan 4bar), dan suhu pengeringan (65oC, 70oC, 75oC). Metode pengecatan menggunakan spray painting dengan 3 kali pelapisan dengan jarak 15cm. Setelah melalui proses pengeringan spesimen diuji menggunakan alat ukur thickness gauge yang memiliki sepsifikasi rentang pengukuran 0-1250µm/0-50mil dengan akurasi±2.5µm. Data hasil pengukuran ketebalan diolah menggunakan software Minitab 18 dan didapatkan persamaan order kedua hubungan antara ketebalan dan parameter pengecatan dinyatakan sebagai Ŷk =105.61 – 2.522 X1 - 7,616 X2- 7,744 X3- 2,9 X12- 1,82 X22- 3,91 X32 + 1,94 X1 X2 + 1,64 X1 X3 - 3,66 X2X3; dengan X1, X2 dan X3 merujuk ke parameter diameter nozzle, tekanan penyemprotan dan suhu pengeringan. Faktor yang berpengaruh dari ketiga variasi adalah suhu pengeringan dengan nilai koefisiensquare sebesar 3.91, p-value β1(0.000) dan p-value β2 (0.018). Dari penggunaan Response Surface Method (Box-Behnken design) didapatkan hasil ketebalan yang maksimum yaitu 112,472μm dengan kombinasi parameter diameter nozzle 1,25mm, tekanan 2bar dan suhu pengeringan 67,32 ℃.

Akurasi dimensi produk filamen 3d printing berbahan polipropilen menggunakan mesin ekstrusi Mochamad Edoward Ramadhan; Mahros Darsin; Sains Ilham Akbar; Danang Yudistiro
Jurnal Teknosains Vol 11, No 2 (2022): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/teknosains.63878

Additive manufacturing (AM) has been trending topic in industrial revolution 4.0. One technique and the most widely used AM is fused deposition modeling (FDM), which uses a melted filament and deposited it layer by layer. The common filaments used are made of PLA, PP, and ABS, which are available at the online market with variety of prices depend on the quality. It is an advantage if we can make these filaments. In filament manufacturing, the dimensional accuracy is one of the most important factors to comply with the existing 3D printers. The aim of this research is to fabricate a filament made of PP, then assessed the quality based on the accuaray of the targeted diameter of 1.75 mm. The manufacturing process used a self-made plastic extrusion machine. Variations were made on three variables with three levels each. There are (i) heater band temperature with a minimum and maximum range (150/170 oC, 155/175 oC and 160/180 oC), (ii) winding speed (13 mm/s, 16 mm/,s and 19 mm/s), and (iii) roll distance to the nozzle set point (200 mm, 500 mm and 700 mm). Taguchi L9 design was used to design the experiments and analysis.Minitab 19 was employed to find the S/N ratio and analysis the variance (ANOVA). The results of the analysis state that two parameters have a significant effect on the dimensions of the filament, i.e. temperature and roll distance to the nozzle, while, the winding speed has no dominat effect. The best accuracy of filaments diameter was achieved when applying a combination of temperature (160/180 ⁰C), the distance between the nozzle to the roll of 700 mm, and winding speed of 13 mm/s.

Upaya mengatasi cacat produksi botol kemasan air 600 ml dengan metode Statistical Process Control Mahros Darsin; Mochamad Asrofi; Joni Anggianto; Soesatijono Soesatijono
Jurnal Litbang Industri Vol 10, No 2 (2020)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v10i2.6139.129-137

This research aim is to find out the type of defects in production process of 600 ml bottle water at PT TIB Jember, then some attempts to resolve the problem. The p-chart of Statistical Process Control was employed. The control chart in September 2019 shown that some data beyond the ultimate control limit (UCL). The defects were categorized into three: whitening, deviate form, and broken. The Pareto chart revealed that the aforementioned defects were 59.7%, 26.36% and 15.07% respectively. By using the fishbone diagram some root cause of the defects were found. First, the unstable workplace temperature which disturbs the preform melting process prior to blowing, therefore causing whitening the bottle. Second, the heater which is often turned off while processing that caused deviate form. The frequently turned off the heater was caused by cracked-damage along with the hoses of overdue. Some suggestions were given, one of them was replacing the hoses by the new ones. The new control chart in October 2019 showed that all data within the limits following the replacement of the hose. It also reduced the rate of the defect by 0.19% from 0.74% to 0.55%.

Onyx and Marmer Objects Modeling by Joining and Choosing Parametric 2) 1) Modifications of Bezier Revolution Surfaces Kusno Kusno; Antonius Cahya P; Mahros Darsin
Jurnal ILMU DASAR Vol 8 No 2 (2007)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.202 KB)

We formulate application of Bezier revolution surfaces for modeling onyx and marmer objects in three steps as the following. Firstly, calculating the parametric representation of Bezier revolution surfaces and its shape modification in some different forms is done. Secondly, we formulate parametric continuity for joining the surfaces. Finally, the application of those formulas for modeling onyx and marmer objects of revolution by using computer are simulated.

KOLAM GIZI AKUAPONIK UNTUK KETAHANAN PANGAN MASYARAKAT URBAN KELURAHAN KARANGREJO KABUPATEN JEMBER DI MASA PANDEMI COVID-19 Tri Handoyo; Mahros Darsin; Laily Ilman Widuri
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 6 No. 1 (2022): Jurnal Panrita Abdi - Januari 2022
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/pa.v6i1.12445

Limited knowledge of society about cultivation activities in the urban area leads to low practical urban farming activities during the pandemic. This study aimed to develop a productive urban community to increase family food security and apply science and technology through aquaponic ponds to optimize small areas around their house. This community service activity was conducted in the Karangrejo subdistrict, Sumbersari district, Jember Regency, East Java Indonesia, on September – November 2020. Three methods were applied during this activity, including counseling for food security during pandemics, training for aquaponic techniques, and accompaniment during the harvesting period. Success indicators of this program showed by the increment of the community's knowledge and skill about food security, aquaponic, and harvesting techniques. Through assistance to the community from the beginning to the end, we expected that this nutrition aquaponic pond program could be a provision to motivate people for continuing productive activities during the pandemic. This community service activity could optimize limited land around the house as nutrition sources for urban communities. The community's participation and contribution to maintaining the aquaponic pond and cultivation activity become a key for the sustainable cultivation cycle of aquaponics products. Society could improve the skill and knowledge for urban communities to create autonomy metropolitan areas during pandemic Covid-19. --- Kerterbatasan kapasitas pengetahuan masyarakat tentang teknik bercocok tanam, menyebabkan banyak masyarakat belum maksimal menerapkan aktivitas urban farming di masa pandemi. Tujuan diadakannya kegiatan pengabdian ini adalah untuk menciptakan masyarakat urban yang produktif dan mandiri dalam menjaga ketahanan pangan dan gizi keluarga, dan menerapkan iptek praktek budidaya tanaman dan ikan air tawar secara akuaponik sebagai bentuk optimalisasi lahan sempit di sekitar rumah. Kegiatan pengabdian masyarakat dilaksanakan di lahan milik salah satu anggota komunitas ibu-ibu kelompok pengajian yang berlokasi di Lingkungan Pelindu Barat, Kecamatan Sumbersari, Kabupaten Jember, Jawa Timur pada bulan September-November 2020. Metode pengabdian dilakukan dengan tiga tahapan yakni penyuluhan tentang ketahanan pangan keluarga di masa pandemi Covid-19, pelatihan teknik budidaya akuaponik dan pendampingan kegiatan panen produk akuapoik. Indikator keberhasilan kegiatan ini yakni peningkatan aktivitas produktif untuk memenuhi kebutuhan gizi keluarga, peningkatan keterampilan tentang teknik budidaya akuaponik, dan peningkatan pengetahuan teknik panen sayuran dan ikan lele dari hasil akuaponik. Hasil kegiatan menunjukkan bahwa kolam gizi aquponik dapat menjadi salah satu solusi yang dapat diberikan untuk mengoptimalkan pemanfaatan lahan sempit sekaligus menjadi sumber gizi masyarakat di kawasan urban. Selain mendapatkan tambahan keilmuan, masyarakat juga dimotivasi untuk ikut aktif berpartisipasi dalam pemeliharaan dan kegiatan bercocok tanam, dengan harapan bahwa keberlanjutan siklus budidaya ikan dan sayur dapat terus berkelanjutan. Bekal pengetahuan dan skill yang diberikan pada kegiatan pengabdian ini diharapkan dapat dikembangkan oleh masyarakat untuk menjadi kawasan urban mandiri di tengah situasi pandemi.

Co-Authors ,, Sumarji Abdillah, Hafidz Ahmad Agus Triono Ahmad Adib Rosyadi Ahmad Iqbal Fawaid Ahmad Rendi Maulana Ahmad Syuhri Al Wafi, Adib Aldiro, Firdhi Januar Ales, Steve Korakan Alfi Hasan Anam, Khairul Andi Sanata Angger Sudrajat Angger Sudrajat, Angger Antonius Cahya Prihandoko Aprillia, Dita Aris Zainul Muttaqin Ariyo Anindito Asrofi, M Azhari, Nadila Laila Azizi, Agil Widhy Azmi Saleh Bambang Irawan Basuki , Hari Arbiantara Boy Arief Fachri Cahya Alief Prasetyo Cahya Alief Prasetyo Cahyadi, Tedi Setiawan Catur Suko Sarwono Chatarina Umbul Wahyuni Chen, Zhan Clarissa Putri Sholeha Danang Yudistiro Danang Yudistiro, Danang Yudistiro Danny Febriansyah Dedi Dwilaksana Deny Tomy Andrianto Digdo Listyadi, Digdo Dinata, Gerry Gardika Surya Doddy Parningotan Dwi Djumhariyanto Dwi Hidayatul Qoryah, Rika Efendi , Moh Riski Elhamzah, Denaldy Elza Setya Faqih, Muhammad Fadhlurrohman Faradin Adyatama Faris Ahmad Junaedi Fatkhur Rohman Firman Gustiawan Gaguk Jatisukamto Hadi Samsul Halmi Palwa Guna Hanifudin, Muhamad Hardiatama , Intan Hari Arbiantara Hari Arbiantara Basuki Hari Arbiantara, Hari Hary Sutjahjono Hayun Indra Nur Iman Hermawan , Yuni Hilmi, Fikril Hutama, Tri Surya Ilminafik, Nasrul Imam Rudi Sugara Imam Sholahuddin Indra Surya Iwanata Intan Hardiatama Ismono, Firman Ema Jatisukamto , Gaguk Joni Anggianto Khamdan Khavivi Kusno Kusno Kustanto, Muh. Nurkoyim Kustanto, Nurkoyim Laily Ilman Widuri Luviandy, Allen Miftakhul Rohman Mochamad Asrofi Mochamad Edoward Ramadhan Mochamad Edoward Ramadhan Mochamad Edoward Ramadhan Mochammad Edoward Ramadhan Mohammad Firman Mohammad Firman, Mohammad Muh Nurkoyim Kustanto Muhammad Dimyati Nashrullah Muhammad Ghilman Badri Muhammad Ghilman Badri, Muhammad Ghilman Muhammad Mukti Ali Muhammad Nur Cahyo Hidayat Nasrullah Muhammad Sholihul Amin Muhammad Trfiananto Muhammad Trifiananto Nasrul Ilminnafik Naufal Fardio Albajili Nikmah, Nailu Kotrin Nugraha, Dicky Aprilian Nurhasanah Nurhasanah Nurkoyim Kustanto, Muh Nurrosidi, Muhamad Zaky Rizqullah Pasang, Timotius Pieter Muhammad Iko Marrendra Prakoso, Muhammad Ihsan Prayogo Alim Pangestu Priawan, Deni Yudas Puranggo Ganjar Widityo Putra, Tri Wirayuda R. Koekoeh Koenjtoro Wibowo Rahma Rei Sakura Raihaan . Ramadhan, Ivan Fadilla Renald Rochman Mauludy Rika Dwi Hidayatul Qoryah Rizal, Ahmad Ayyub Syaiful Rizaldy, Nicholas Robertoes Koekoeh Koentjoro Wibowo Robertus Sidartawan Rossy, Rio Martha Febriana Rudi Sugara, Imam Sains Ilham Akbar Salahuddin Junus Salman Al Farisi Siregar Salmansyah, Dathantara Samsuri . Santoso Mulyadi Sari, Herninda Ayu Meylinda Soesatijono Soesatijono Soesatijono Soesatijono Sukma, Kinanti Wilujeng Sumarji Sumarji Surya, Muhammad Maulana Andi Susanti, Rizqa Putri Syahriza, Mochamad Rifki Syuhri, Skriptyan Noor Hidayatullah Taqdissillah, Doohan Timotius Pasang TRI HANDOYO Tri Surya Hutama Triana Lindriati W.C.S, I Made Ivan Wardatul Jannah Wazirotus Sakinah Wibowo, Robertoes Koekoeh K. Wibowo, Robertoes Koekoeh Koentjoro Wulandari, Rista Dea Yahya, Hafiz Indratma Yohan Rizal Kharisma Yudistito, Danang Yulianasari, Resha Dhiah Eka Yulio, Agit Yoga Yuni Hermawan Yusron Maulana, Raden Muhammad Zhan Chen

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