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All Journal Prosiding Semnastek DINAMIKA Jurnal Ilmiah Teknik Mesin Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Dinamisia: Jurnal Pengabdian Kepada Masyarakat PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Teknologi Terapan Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali Fokus Elektroda: Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Journal of Metallurgical Engineering and Processing Technology Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Jurnal Teknik Mesin Sinergi Piston: Jurnal Teknologi Jurnal Fokus Elektroda (Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Indonesian Journal of Community Services Media Konstruksi : Jurnal Ilmiah Teknik Sipil

Aminur Aminur

Jurusan Teknik Mesin Universitas Halu Oleo, Indonesia

Author-ID : 491389

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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ANALISA LAJU KOROSI PADA BAJA KARBON RENDAH YANG DILAPISI SENG DENGAN METODE HOT DIP GALVANIZING Rahman, laode arif; Hasbi, Muhammad; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1, No 2 (2016): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

ABSTRACTThis study aims to determine how the media influence of NaCl and H2SO4 / water against corrosion rate of low carbon steel coated with zinc by the method of Hot Dip Galvanizing. Research method is done by making a specimen of low carbon steel pipes circular, angled, and plate. Then the zinc coating process performed by the method of Hot Dip Galvanizing at a temperature of 500oC. Then do step corrosion testing with media H2SO4 and NaCl for 24 days and the data taken during the study. The results of the study that after a coating of zinc (Zn) on low carbon steel with Hot Dip Galvanizing method of specimen data obtained circle, the average rate of corrosion with H2SO4 media: Water is 5,529.10-7 gr/min. While in NaCl media, the average corrosion rate is 26,833.10-7 gr/min. An increase in the corrosion rate of 79.58%. On the specimen form elbow, the average rate of corrosion with H2SO4 media: Water only 2,0377.10-7 gr/min. In contrast, if using media NaCl, occur on average corrosion rate of 21,692.10-7 gr/min. Tests on specimens plat form, the average rate of corrosion in H2SO4 media: Water is 6,299.10-7 gr/min. Then the media NaCl average corrosion rate is 28,25.10-7 gr/min. The corrosion rate by using H2SO4 media: Water occurs in the form of the specimen plate is 6,299.10-7 gr/min, and 28,25.10-7 gr/min in NaCl media. Keyword : low carbon steel, zinc, galvanizing, corrosion, H2SO4, NaCl ABSTRAKPenelitian ini bertujuan untuk mengetahui bagaimana pengaruh media NaCl dan H2SO4/Air terhadap laju korosi pada baja karbon rendah yang dilapisi seng dengan metode Hot Dip Galvanizing. Metode peneliatian yang dilakukan dengan membuat spesimen dari pipa baja karbon rendah berbentuk lingkaran, siku, dan plat. Lalu dilakukan proses pelapisan seng dengan metode Hot Dip Galvanizing pada suhu 500oC. Lalu dilakukan langkah pengujian korosi dengan media H2SO4 dan NaCl selama 24 hari dan diambil data selama penelitian. Hasil penelitian bahwa setelah dilakukan pelapisan seng (Zn) pada baja karbon rendah dengan metode Hot Dip Galvanizing diperoleh data spesimen lingkaran, rata-rata laju korosi dengan media H2SO4:Air adalah 5,529.10-7 gr/menit. Sedangkan pada media NaCl, rata-rata laju korosinya adalah 26,833.10-7 gr/menit. Terjadi peningkatan laju korosi sebesar 79,58%. Pada bentuk spesimen siku, rata-rata laju korosi dengan media H2SO4:Air hanya 2,0377.10-7 gr/menit. Berbeda jika menggunakan media NaCl, terjadi rata-rata laju korosi sebesar 21,692.10-7 gr/menit. Pengujian pada bentuk spesimen plat, rata-rata laju korosi pada media H2SO4:Air adalah 6,299.10-7 gr/menit. Lalu pada media NaCl rata-rata laju korosinya adalah 28,25.10-7 gr/menit. Laju korosi terbesar dengan menggunakan media H2SO4:Air terjadi pada bentuk spesimen plat yaitu 6,299.10-7 gr/menit, dan 28,25.10-7 gr/menit pada media NaCl.Kata kunci : Baja karbon rendah, zinc, galvanizing, korosi, H2SO4, dan NaCl

Pengaruh Penambahan Fly Ash dan Serbuk Kaca Terhadap Sifat Fisik dan Mekanik Komposit Batako Husain, La Ode; Endriatno, Nanang; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 4 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Composite is a new material engineered by two or more materials where the properties of the materials differ from one another both in chemical and physical properties. Composites are obtained from a combination of metal with ceramics, metal with plastics, and others. The purpose of this study was to determine the effect of adding fly ash and glass powder on the physical and mechanical properties of brick-based composites. The drying process is carried out for 28 days. The compressive strength and water absorption tests were carried out after the drying process. The results showed the highest compressive strength value is on the B sample is 74.17 kg / cm2 and water uptake is lowest in the sample A, namely 10.53%. The highest compressive strength test results exist in the sample B is 74.17 kg / cm2 and the compressive strength is lowest in the sample A which is 66.67 kg / cm2. While the highest water absorption test results were in sample C, namely 15.05% and the lowest water absorption value was in sample A, namely 10.53%. Keywords: Brick-Based, fly ash, glass powder, compressive strength, water absorption.

STUDI SIFAT MEKANIK KOMPOSIT POLIMER YANG DIPERKUAT PARTIKEL CLAY Hasbi, Muhammad; Aminur, Aminur; Sahril, Sahril
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 1, No 1 (2016): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Komposit dihasilkan dari pencampuran dalam sejumlah fase yang terdiri dari 2 bagian utama yaitu matriks (sebagai pelindung filler) dan filler (sebagai penguat dari matriks). Material komposit polyester yang diperkuat partikel clay telah dikembangkan dalam penggunaan dibidang kontruksi seperti genteng. Tujuan dalam penelitian ini adalah untuk mengetahui pengaruh komposisi dan putaran pengaduk clay dan resin polyester terhadap kekerasan dan tegangan bending untuk aplikasi genteng. Penelitian ini dilakukan di Laboratorium Material dan Teknologi Mekanik Jurusan Teknik Mesin Fakultas Teknik Universitas Halu Oleo. Bahan yang digunakan adalah clay sebagai partikel dan resin polyester sebagai penguat. Dalam penelitian ini komposisi resin polyester dan clay yang digunakan adalah 95:5%, 90:10% dan 85:15% sedangkan untuk putaran yang gunakan yaitu 762 Rpm, 944 Rpm dan 1066 Rpm. Pengujian spesimen dibuat berdasarkan standar ASTM pengujian kekerasan dan tegangan bending. Hasil pengujian menujukan bahwa, nilai kekerasan maksimum komposit terdapat pada komposisi 5% clay dengan kecepatan putar 1066 Rpm. Sedangkan untuk nilai tegangan bending maksimum terdapat pada komposit komposisi 5% clay dengan kecepatan putar 1066 Rpm. Kata kunci : Clay, Polyester, Komposit, Kekerasan dan Bending.

Analisis Perubahan Garis Pantai Menggunakan Data Citra Satelit Di Pantai Tanjung Bunga Kota Makassar Sulawesi Selatan Citra Yurnidar Syah; Aminur; Jaka Seru Dwi Saputra; Anafi Minmahddun
MEDIA KONSTRUKSI Vol. 9 No. 3 (2024)
Publisher : Jurusan Teknik Sipil, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/medkons.v9i3.64

Wilayah pesisir di Indonesia memiliki potensi pembangunan seperti permukiman, perhubungan, pengembangan industri. Metode untuk memperoleh imformasi potensi Sumber Daya Alam wilayah pesisir adalah Penginderaan Jauh dan Sistem Informasi Geografis (SIG). Penelitian ini untuk menganalisis perubahan garis Pantai Tanjung Bunga Kota Makassar menggunakan data citra satelit aplikasi penginderaan jauh. Analisis yang digunakan adalah Analisis spasial yang terintegrasi pada SIG dan data Citra satelit serta analisis kuantitatif sebagai Data pembanding Dari data primer. Hasil peneitian ini didapatkan garis Pantai mengalami penambahan akibat aktivitas reklamasi Pantai mengakibatkan terjadinya perubahan.

ANALISA KEKUATAN TARIK DAN LENTUR KOMPOSIT BERPENGUAT SERAT DAUN NANAS (ANANAS COMOSUS) DENGAN KONFIGURASI CROSS-PLY LAMINATE Aminur, Aminur; Sudarsono, Sudarsono; Bahar, Bahar
Jurnal Teknologi Terapan Vol 10, No 2 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i2.537

Composite is a new type of material which is the result of engineering, consisting of two or more materials, with the properties of each material being different from each other both in terms of chemical and physical properties. The aim of this research is to determine the tensile and flexural strength values of pineapple leaf fiber composites with a cross-ply laminate configuration with fiber arrangement angles [0, 90°, 0°], [45˚, -45˚, 45˚] and [ 30°, -30°, 30°]. This research uses fiber arrangement directions [0, 90°, 0°], [45˚, -45˚, 45˚] and [30˚, -30 ˚, 30 ˚] with a cross-ply laminate configuration and uses. The composite was made in a composite mold measuring P = 190 mm, L = 90 mm and t = 5 mm. The results of this research show that the influence of the pineapple leaf fiber orientation angle on the average tensile stress value of composites with pineapple leaf fiber cross-ply laminate configuration with the highest tensile stress value is shown by the fiber direction at an angle of [30°, -30°, 30°] amounted to 27,611 MPa, while the lowest composite value with the angle [45˚, -45˚, 45˚] was 19,407 MPa. The highest bending stress value is found in the composite with an orientation angle of [0, 90°, 0°] with an average value of 59.002 MPa, while the composite with a fiber orientation angle of [45˚, -45˚, 45˚] has a higher bending stress value. low at 32.974 MPa.

Analysis of Tensile and Bending Strength of Coconut Fiber Reinforcement Composite on Quasi Isotropic Laminates Stacking Sequence Aminur, Aminur; Saputra, Jaka Seru Dwi; Syah, Citra Yurnidar
Journal of Metallurgical Engineering and Processing Technology Vol 4, No 2 (February 2024)
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v4i2.11350

A composite is a material structure composed of two or more combinations of constituents combined macroscopically, where the two combinations do not dissolve each other. The first phase is called reinforcement, while the second phase is called matrix. This study aims to analysis the tensile and bending strength values of coconut fiber reinforced composites with a sequence of layers of quasi-isotropic fiber laminates. Experimental studies were carried out on polyester resin composites reinforced with coconut fiber in the fiber layer sequences of [0°/0°/0°], [+45°/0°/-45°] and [+60°/0°/-60°]. Tensile test specimen standards refer to ASTM D-3039 and bending test standards refer to ASTM D-7264. The results of the blistering test obtained a maximum stress of 18.3298 N/mm2 in the fiber layer sequence [0°/0°/0°] and a minimum stress of 10.8966 N/mm2 in the fiber layer sequence [+60°/0°/ -60°]. Meanwhile, the bending test results showed that the maximum bending stress was 76.065 N/mm2 in the fiber layer sequence [0°/0°/0°] and the minimum stress was 30.256 N/mm2 in the fiber layer sequence [+45°/0°/-45 °].

Desain dan Analisis Finite Elemen Rangka Gantry Crane Menggunakan Software Autodesk Inventor Profesional 2024 Al Ichlas Imran; Aminur; I Made Widana
Piston: Jurnal Teknologi Vol 9 No 2 (2024): Desember 2024
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v9i2.62

Currently, the gantry crane still uses steel material. The steel is protected using a coating paint to minimize the impact of corrosion. However, this method is inefficient given the high rate of corrosion due to its coastal location. This also causes maintenance issues because repainting must be done regularly and periodically. Additionally, not all equipment has annual maintenance funding. The aim of this study is to design and analyze the stress of a 9-ton capacity gantry crane using Aluminium 6061 material. Finite element analysis was conducted using Autodesk Inventor Professional 2024 software. The results of this study indicate that the gantry crane frame is safe to use because the von Mises stress analysis result of 2,778 MPa is still below the yield strength of Aluminium 6061 material, which is 275 MPa. A safety factor of 2.07 shows that the gantry crane design is very safe to withstand loads up to 9 tons.

Uji karakteristik briket campuran serbuk kayu dan tandan kosong Sawit sebagai bahan bakar alternatif La Ode Ahmad Barata; Masharib Al Akhyar; Aminur; Amrullah; Akbar Naro Parawangsa
Piston: Jurnal Teknologi Vol 9 No 2 (2024): Desember 2024
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v9i2.77

Advances in technology made the use of fossil fuels a major issue, while the sources of fossil fuels continue to decrease due to their perishable nature. Biomass, including waste such as sawdust and oil palm empty fruit bunches, has potential as an alternative energy source that can be converted into briquettes. This study aims to determine the characteristics of biomass sawdust and oil palm empty fruit bunches as briquette materials as an alternative to fossil fuels. This research was conducted experimentally to determine the optimal formulation of a mixture of Wood Powder (SK) and Empty Palm Bunches (TKKS) in making briquettes. Composition variations tested include 100% SK, 100% TKKS, 50% SK: 50% TKKS, 70% SK: 30% TKKS, 30% SK: 70% TKKS. The results showed that the ultimate and proximate characteristics of 100%SK and 100%TKKS have good fixed carbon content. Based on the heating efficiency test, the best value is with the composition of 100% SK with 10% starch adhesive getting a combustion efficiency value of 7.65%. The best porosity index was obtained in the formulation of 70% SK: 30%TKKS with a value of 1.52%, while the best durability index is in briquettes with a composition of 100%TKKS with 10% starch adhesive getting a value of 0.12%. The briquette properties of sawdust and empty palm kernel can be the initial data in the development and use of biomass briquettes or co-firing fuel for industrial furnace because it has good mechanical and physical properties. Thermal efficiency test in the field should use biomass stoves to obtain accurate biomass performance data.

Perawatan Dan Perbaikan Pada Pengelasan Teknologi Robotik Secara Preventive Maintenance Dengan Modulary Design Hisyam; Muhamat Farisman; Jusman; Raden Rinova Sisworo; Aminur
Piston: Jurnal Teknologi Vol 10 No 1 (2025): June 2025
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v10i1.89

The focus of this research was maintenance and repair of robotic welding technology using preventive maintenance with modular design. This concept organizes machine parts to reduce manufacturing costs, repair procedures, and reduce product defects, as well as minimize component damage such as undercut, overlap, and porosity. If component damage occurs, maintenance/replacement of components is not only carried out on the damaged component but also is connected to other components. The method used in this research was observation carried out by direct observation at the location of the information source at the company Showa Kinzoku.co.,ltd, as well as literature study in order to obtain complementary data and solve problems. This shows that there was a significant decrease in damage after research was carried out before maintenance was carried out in November {13.0}, December {12.3}, January {12.5}. After maintenance was carried out in February {4.12}, March {3.33}, April {3.76} the difference was very significant. In this research the author also looked at seasonal factors, in the winter in December product damage reached {12.5} damage and in the summer in April it decreased to {3.76} damage. Based on the results of the analysis, it can be concluded that the implementation of preventive maintenance with modular design is very effective, the January presentation data showed 77% damage, compared to April's only 23% damage. Maintenance significantly reduces average product defects by more than 50%, demonstrating high effectiveness in this period.

Studi Kekuatan Tarik Komposit Serat Sabuk Kelapa Antisymmetric Laminates Samhuddin; Aminur; Sri Amrin Al Kadirun; La Ode Ahmad Barata
Piston: Jurnal Teknologi Vol 10 No 1 (2025): June 2025
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v10i1.92

The utilization of natural fiber-based composite materials is increasingly developing as an environmentally friendly alternative to synthetic materials. Coconut sheath fiber is an agricultural waste with potential as reinforcement in polymer matrices due to its strength and flexibility. This study focuses on the tensile strength of coconut sheath fiber composites in antisymmetric laminate configurations, which have not been widely explored. Such configurations are expected to enhance mechanical performance, particularly in lightweight structural applications. The study aims to analyze tensile characteristics and understand the influence of laminate orientation on the mechanical properties of the composite. The problem addressed is how tensile strength behaves in coconut sheath fiber antisymmetric laminates with fiber orientations of [-45°/+45°/-45°/+45°] and [-30°/+30°/-30°/+30°]. A quantitative research method was used, consisting of the following stages: (1) fiber preparation, (2) fiber soaking, (3) mold fabrication, (4) composite fabrication, (5) specimen preparation, and (6) tensile testing. The results showed that the highest average tensile stress was obtained in the +45°/-45°/+45°/-45° orientation, with a value of 10.578 MPa, a tensile strain of 2.452%, and an elastic modulus of 0.004 GPa. The positive contribution of this study lies in revealing the potential of coconut sheath waste as a reinforcing material for composites with promising mechanical performance under specific laminate configurations. However, the study is limited in the range of fiber orientations explored and does not include evaluations under other mechanical loads such as bending and impact. Further studies are recommended to investigate a wider range of fiber orientations and to conduct multiaxial mechanical testing to obtain a more comprehensive understanding of the composite behavior.

Co-Authors Abd Kadir, Abd Abd. Kadir Abd. Kadir Abd. Kadir Abd.Kadir Adnal, Adnal Akbar Naro Parawangsa Aksar, Prinob Al Ichlas Imran Al Ichlas Imran Amrullah Anafi Minmahddun Arifin Arman Faslih ARMAN FASLIH, ARMAN Bahar Bahar, Bahar Budiman Sudia Budiman Sudia, Budiman Citra Yurnidar Syah Citra Yurnidar Syah Citra Yurnidarsyah Citra Yurnidarsyah DWI SURYANTO Edriyanto, Edriyanto Erick Patollong Eswanto Eswanto Ferdin G. Gunawan Hasanudin, La Hidayat Hidayat Hisyam Husain, La Ode I Made Widana I Nyoman Udayana Imran, Al Ichlas Imran, Nur Al Iwan Gunawan Iyan Jaka Seru Dwi Saputra Jenny Delly, Jenny Jusman Kosar, Riko Wahyuddin La Hasanudin La Hasanudin La Ode Ahmad Barata La Ode Muhamad Dirman Laksono Trisnantoro Leo, Loman Lolok, Agustinus Lukas Kano Mangalla, Lukas Kano Lukman, Muh Rahmat Maksin Masharib Al Akhyar Moh. Saparun Muh. Rizal Ode Muhamat Farisman Muhammad Hasbi MUHAMMAD HASBI Muhammad Zakaria Umar Muhammad Zakaria Umar, Muhammad Zakaria Musram Abadi Nanang Endriatno Qirul Nur Arianto Raden Rinova Sisworo Raden Rinova Sisworo Raden Rinova Sisworo Rahman, laode arif Ridwan, Ridwan Ridway Balaka Ridway Balaka, Ridway Saefuddin, Laode Salimin Salimin Salimin Salimin Salimin, Salimin Samhuddin Samhuddin Samhuddin Samhuddin, Samhuddin Saparun, Moh. Saputra, Fahri Ari Sarwo Pranoto Satri JP Sitompul Siswahyudianto Sri Amrin Al Kadirun Sudarsono Sudarsono Sudarsono Sudarsono Sudarsono Suratin, Dedi Mardeni Syah, Citra Yurnidar Tony Siangian Wa Ode Nartin Hamundu

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