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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Sinergi Journal of Environmental Engineering and Sustainable Technology Journal of Energy, Mechanical, Material and Manufacturing Engineering Jurnal Surya Masyarakat Conference on Innovation and Application of Science and Technology (CIASTECH) DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Surya Masyarakat Pilar Teknologi : Jurnal Penelitian Ilmu-ilmu Teknik International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Pengabdian pada Masyarakat Ilmu Pengetahuan dan Teknologi Terintegrasi Dulang: Jurnal Pengabdian Kepada Masyarakat Sasambo: Jurnal Abdimas (Journal of Community Service)
Teguh Dwi Widodo
Universitas Brawijaya
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering 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 Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Other

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PENGARUH VARIASI SUDUT DAN JARAK PENEMBAKAN SANDBLASTING PADA PROSES PRETREATMENT TERHADAP KUALITAS PELAPISAN CAT DAN SIFAT KOROSI PADA BAJA KARBON RENDAH Saputra, Indra Adi; Widodo, Teguh Dwi; Yuliati, Lilis
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1382

Abstract

The purpose of this study was to determine the effect of variations in the angle and distance of sandblasting on paint coating quality and corrosion properties of low carbon steel. The success of a coating is highly dependent on surface roughness, so sandblasting is needed to clean and create a surface roughness profile with the aim that the paint can coat the surface perfectly. The test method used in this research is the pull off test method for testing the adhesive strength of paint and open circuit potential (OCP) for testing the corrosion potential. The sandblasting variations used are angles of 45⁰, 60⁰, 75⁰ and nozzle distances of 15 cm, 35 and 50 cm. The tests carried out were roughness, paint thickness, paint adhesive strength and corrosion potential. From the test results it can be concluded that the greater the angle and the closer the sandblasting nozzle distance, the greater the surface roughness. The greater surface roughness affects the paint layer to be thicker and has a high paint adhesion strength, resulting in a smaller corrosion potential. In this study, the highest test results were obtained at an angle of 75⁰ and a distance of 15 cm with a surface roughness value of 5.981 µm, a paint thickness of 115 µm, a paint adhesive strength of 7.28 MPa and an initial corrosion potential position of -0.101 V then a final position of -0.063 V.
PENGARUH KOMPOSISI LAPISAN NI-CR PADA BAJA ASME SA 210 C TERHADAP LAJU EROSI SUHU TINGGI Utomo, Slamet Prasetyo; Darmadi, Djarot B.; Widodo, Teguh Dwi
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1501

Abstract

The purpose of this study was to determine the high temperature erosion rate of the NiCr coating on ASME SA 210 C steel using the combustion oxy fuel thermal spray method. In Circulating Fluidized Bed (CFB) boiler, there is circulation of fly ash, silica sand and air in a high temperature environment which causes erosion. High temperature erosion can be minimized by using Ni-Cr alloy coating sing the combustion oxy fuel thermal spray method. NiCr alloy is proved a able to provider a metal alloy layer composition that can withstand temperatures of 600°C with a fly ash impact speed of 200m/s. The metal alloy compositions that have been studied are NiCr, NiCrCo, NiCrWc, NiCrWcCo, and NiCrCoMo. The results of this study indicates that metal alloys are generally atteche to the substrate and withstand at a high temperatures (600°C). The highest hardness provide by NiCrWcCo alloy which is 177.46 HV. The lowest hardness is found in the composition of the NiCrCo alloy (161.71 HV). The lowest high temperature erosion rate was found in the NiCrWcCo alloy, which was -0.00481 gram/minute. This low erosion rate because the NiCrWcCo alloy produces a good weeting effect for metal alloys and has a high hardness value.
PENGARUH PENGGUNAAN MINYAK JAGUNG UNTUK CUTTING FLUID PADA PROSES FACE MILLING TERHADAP KEKASARAN PERMUKAAN PERMUKAAN DAN LAJU KOROSI BAJA KARBON Widodo, Teguh Dwi; Suwarso, Wahyu Handoyo; Wahyudiono, Arif; Raharjo, Rudianto; Bintarto, Redi; Sasongko, Mega Nur; Darmadi, Djarot Bangun; Setiawan, Yustiza Rahadian
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1627

Abstract

The corrosive coastal environment will result in a high corrosion rate for any equipment installed there. This is due to the constant exposure to saltwater, high humidity levels, and strong winds. Therefore, it is crucial to use corrosion-resistant materials and regularly maintain the equipment to ensure its longevity in such an environment. One method to reduce the rate of corrosion is to pay close attention to the manufacturing parameters of these components, one of which is the face milling process. The aim of this study is investigating the effect of face milling process with different dept of cut using minimum quantity lubrication method with corn oil as a renewable vegetable cutting fluid. In this study AISI 316L stainless steel was face milled using HAAS VF-2 CNC machine. The depth of cut is varied between 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, and 0.6 mm. The results demonstrated that the greater the depth of cut, the greater the surface roughness value that will be generated. It is resulting in increment in the corrosion rate value.
IbM BANTUAN ALAT DAN PELATIHAN UNTUK PENGEMBANGAN KEAHLIAN WIRAUSAHA PERAKITAN BAHAN GALVALUM UNTUK SANTRI PONDOK PESANTREN DARUL MUTTAQIN BATU Bintarto, Redi; Sugiarto, Sugiarto; Gayuh Utami Dewi, Francisca; Purnowidodo, Anindito; Dwi Widodo, Teguh; Raharjo, Rudianto
Jurnal Pengabdian Masyarakat Polmanbabel Vol. 4 No. 01 (2024): DULANG : Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/dulang.v4i01.315

Abstract

Galvalum has become an inevitable part of Darul Muttaqin Batu Islamic Boarding School construction. The ease of access, affordability, and simplicity of installation have led to most buildings within the boarding school using galvalume. However, professional galvalume workers are still employed when it comes to the structure and construction at the boarding school. As a result, the boarding school has to incur high costs to construct or create equipment made from galvalume. In addition to the above-mentioned issues, the students are a valuable human resource that can be utilized to create equipment from galvalume. However, because the students are not yet familiar with how to cut, assemble, and create kit from galvalume materials, training is essential to provide them with additional skills alongside their religious studies at the boarding school. This endeavor involves the contribution of equipment for galvalume material manufacturing and training on assembling galvalume materials according to the boarding school's needs. Through these activities, it is hoped that knowledge will be transferred from the university/instructor to the students. Consequently, this not only equips the boarding school but primarily provides the students with skills so that when they graduate from the boarding school, they have the skills to lead a decent and self-sufficient life.
Desain Kawasan Sapi Perah untuk Menopang Wisata Desa Lembah Mbencirang di Desa Kebontunggul Widodo, Teguh Dwi; Budiarto, Agus; Wahjudi, Ari; Maftuch, Maftuch; Asmaranto, Runi; Raharjo, Rudianto; Sugiarto, Sugiarto; Bintarto, Redi
Jurnal Pengabdian pada Masyarakat Ilmu Pengetahuan dan Teknologi Terintegrasi Vol. 7 No. 2 (2023): June
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jindeks.v7i2.389

Abstract

Ketahanan pangan merupakan program yang telah di canangkan oleh pemerintah. Dalam pelaksanaanya pembuatan wilayah dengan ketahanan dapat diintegrasikan dengan wilayah penopang ekonomi lainnya seperti daerah wisata sehingga akan didapat sentra Ekonomi yang mampu dijadikan sebagai sumber penghasilan warga setempat. Desa Kebontunggul merupakan desa yang ada di Kecamatan Gondang Kabupaten Mojokerto. Melalu program Matching Fund Kedaireka yang didanai oleh Kementerian Pendidikan, Kebudayaan, Riset, dan Teknologi Universitas Brawijaya mengadakan program hilirisasi Teknologi berupa pengembangan Kawasan Peternakan sapi perahyang diintegrasikan dengan Kawasan wisata yang ada di daerah setempat yaitu Lembah Mbendcirang yang sebelumnya sudah beroprasi. Tim Matching Fund Universitas Brawijaya mengadakan pemetaan wilayah di desa Kebontunggul terkait potensi lokasi sapi perah, sumberdaya paka, serta akses lokasi integrasi dengan lembah mbencirang. Selanjutnya dengan bantuan drone dan satelit Map Tim Martching Fund Universitas Brawijaya Melakukan pembuatan Materplan dimana dalam pembuatannya juga melibatkan masyarakat setempat sehingga sesuai dengan harapan masyarakat namun tetap memegang aspek Teknolologi yang dikembangkan oleh Universitas Brawiajaya. Selin itu juga dilakukan pelatihan budidaya sapi perah yang dilakukan oleh Tim Matching fund 2022 Universitas Brawijaya
The Effect of Sand Blasting on Shear Stress of Fiberglass - Shorea spp. Composite Widodo, Teguh Dwi; Raharjo, Rudianto; Risonarta, Victor Yuardi; Bintarto, Redi; Kusumaningsih, Haslinda; Saputra, Muhamad Hendra
International Journal of Mechanical Engineering Technologies and Applications Vol. 1 No. 1 (2020)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/mechta.2020.001.01.1

Abstract

A coating is widely applied to protect base material during contact with surrounding. One important application in engineering is to protect a boat hull. The coating is applied to boat hull to prevent a decrease of mechanical properties of base materials particularly with corrosive seawater. Composite coating is applied since the composite coating provides better protection compared to paint coating. Additionally, sandblasting prior to composite coating is worked out to improve the mechanical properties of the coating. This work investigated the influence of the projection angle of the sandblasting process on the shear strength of the coated surface. The projection angle of sandblasting was varied from 30 to 90 °. The result shows that a higher projection angle decreases the strain strength of the coating surface. The experiment work showed that the shear strength of 30°, 45 °, 60 °, and 90°projection angle are 1.02, 0.66, 0.38, and 0.24 MPa, respectively.
The Effect of Boiling Time of Wulung Bamboo Fiber (Gigantochloa Atroviolacea) in NaOH Solution on Tensile Strength of Epoxy Matriced Composites Bintarto, Redi; Widodo, Teguh Dwi; Raharjo, Rudianto; Sulistyo, Erwin; Tamtomo, Bagas
International Journal of Mechanical Engineering Technologies and Applications Vol. 3 No. 1 (2022)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2022.003.01.3

Abstract

The purpose of this study was to determine the effect of immersion time of NaOH at a temperature of 60-70 ℃ in wulung bamboo fibers on the tensile strength of the epoxy matrix composites. Wulung bamboo fibers (Gigantichloa Atroviolacea) have the potential to be used as reinforced in composites because they have high strength and are widely grown in Indonesia. In this study, bamboo wulung fiber reinforcement was used without treatment and with variations, soaking time 30 minutes, 60 minutes, and 90 minutes in 6% NaOH solution with a temperature of 60-70 ℃. The composite manufacturing method used was vacuum assisted resin infusion and the standard composite specimen used as a tensile test was ASTM D638-01. The results showed that the longer the immersion time resulted in a rougher topography of the fiber surface which caused the composite tensile strength to increase due to the better mechanical interlocking between the fibers and the epoxy resin matrix. The wettability results on the fibers also show that the wetness between the fibers and the epoxy resin matrix is getting better, which is shown from the droplet contact angle on the resulting fibers. The highest composite tensile strength was obtained at 90 minutes immersion time of 169.765 MPa followed by immersion time of 60 minutes of 123.2 MPa, immersion time of 5 minutes of 81.7 MPa and without treatment of 71.6 MPa. Based on the results of the macro photo shows that the treatment given will reduce the failure of the pull out and debonding defects on the composite fracture.
Software Simulation and Experiment for Production of a Pillow Block Using Sand Casting Process Raharjo, Rudianto; Widodo, Teguh Dwi; Bintarto, Redi; Azhar, Andika; Wibisono, Aryasatya Rafli; D, Dhimas Kaukabi
International Journal of Mechanical Engineering Technologies and Applications Vol. 3 No. 2 (2022)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2022.003.02.5

Abstract

Of many manufacturing processes, sand casting is one of the most widely used since there is no size limit of the workpiece. Big size product can be carried out at an affordable cost. In its process, sand casting comprises interconnected and complex series. If some of the processes are not properly carried out e.g. during solidification, will result in defects in the casting products. Simulation is an important method currently since it can model the entire metal casting process and show the dynamic character of the casting scheme. In this study, CAD is used for a 3D design on casting simulation. In this study, the grain size of molded sand, material quality and other process parameters were considered identical to all design schemes. This study aims to investigate the effect of varied design and dimensions of the gating system. It was found in this study that porosity and improper solidification were related to the improper gating and riser design.
INFLUENCE OF LORJUK MUSSEL SHELLS AND PEANUT SHELLS AS CARBURIZER MEDIA IN THE PACK CARBURIZING PROCESS OF AISI 1020 Achmadi, Achmadi; Widodo, Teguh Dwi; Irawan , Yudy Surya
International Journal of Mechanical Engineering Technologies and Applications Vol. 6 No. 1 (2025)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2025.006.01.4

Abstract

AISI 1020 steel is low-carbon steel with a carbon content of 0.20% and good ductility but low hardness. One of the methods to increase the hardness is by infusing carbon. The addition of carbon, called carburizing, was done by heating at a high enough temperature, namely at austenite temperature, in an environment containing active carbon atoms so that the active carbon atoms would diffuse into the steel surface and reach a certain depth. After the diffusion process, a rapid cooling treatment (quenching) is followed to obtain a harder surface, but the center is ductile. The carburizing process requires activation energy to diffuse carbon in the material. Catalysts are one solution to increase activation energy so that the time required during the carburization process is less. The study used carburizer from Lorjuk mussel shells as a catalyst and peanut shell charcoal as a source of activated carbon. The variations used were 0% catalyst/100% charcoal, 10% catalyst/90% charcoal, 20% catalyst/80% charcoal, and 30% catalyst/70%. The results of the study obtained the highest hardness and carbon diffusion values, the smallest corrosion rate obtained in the addition of 30% catalyst, and the lowest hardness in specimens without catalyst.
ECO – INNOVATIVE CARBURIZING: ENHANCING STEEL ST 37 WITH ALABAN CHARCOAL AND EGGSHELL CATALYSTS Ahmad Robittah; Suprapto, Wahyono; Widodo, Teguh Dwi; Wirawan , Willy Artha; Sabitah, A’yan
International Journal of Mechanical Engineering Technologies and Applications Vol. 6 No. 1 (2025)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2025.006.01.13

Abstract

This study examines the enhancement of St 37 steel through an eco-friendly carburization process using Alaban charcoal and eggshell catalyst. The agriculture sector in South Kalimantan, Indonesia, depends largely on metal tools made from low-carbon steel, which need greater hardness and durability. Traditional carburization techniques are costly and often lead to uneven carbon distribution. This research investigates the use of Alaban wood charcoal and local duck eggshell waste as carburizing agents. The experiment involved varying the weight ratio of charcoal to eggshell powder, then carburizing at 950°C for two hours, followed by water quenching. The results indicated a notable increase in surface carbon content, diffusion depth, hardness, and microstructure of St 37 steel. The optimal combination, achieving the highest surface hardness of 947 HV and a carbon diffusion depth of 1.0 mm, was found at an eggshell catalyst concentration of 30%. All samples exhibited a microstructural change to martensite. These results demonstrate the potential of using agricultural waste to enhance steel properties, promoting more sustainable and cost-effective industrial practices.
Co-Authors ABDUL HAMID Abdullah, Harnan Malik Achmadi Achmadi Adli, Danung Nur Agus Budiarto Ahmad Robittah Alfeus Sunarso Anindito Purnowidodo Aprilia Rizky Riadini Ari Vithon Khasib Mubarok Ari Wahjudi Ari Wahyudi Arif Wahyudiono Atsir Farhan Azhar, Andika Bilqis Afifa Dana Putri D, Dhimas Kaukabi Daniest, Chika Zafira Darmadi, Djarot Bangun Denny Widhiyanuriyawan Dewi, Francisca Gayuh Utami Djarot B Darmadi Djarot B. Darmadi, Djarot B. Dwi Kristanto Dwi Kristanto Dwi Kristanto Dwi Prasetyo Erwin Sulistyo Felisa, Putri Bhalqhis Fikrul Akbar Alamsyah Firas, Alfian Gayuh Utami Dewi, Francisca Habibulfalah, Endi Hanifa Zahra Wibowo I Wayan Gede Suputra Wardiana Irawan , Yudy Surya Jauhari, Mochamad Helmi Kusumaningsih, Haslinda Lilis Yuliati Ma’arif, Moh. Syamsul Maftuch Maftuch Maharani, Hemas Desvina Mega Nur Sasongko Mega Nur Sasongko Moch. Agus Choiron Moch. Syamsul Ma'arif Moh. Syamsul Ma’arif Nadia Ananda Prasetia Dion Nugroho Adi Purnomo Nurkholis Hamidi Oyong Novareza Pratama, Gesha Denny Putri, Debri Harynia Putu Hadi Setyarini Rahmadhani Angger Syahputra Redi Bintarto Redi Bintarto Redi Bintarto Redi Bintarto, Redi Ridho Dwi Syahrial Robittah, Ahmad Rudianto Raharjo Rudianto Raharjo Rudianto Rudianto Rudy Soenoko Rudy Soenoko Runi Asmaranto Sabitah, A'yan Sagita, Sagita Saputra, Indra Adi Saputra, Muhamad Hendra Setiawan, Yustiza Rahadian Siswoyo, Redi Cipto Sofyan Arief Setyabudi Sugiarto S Sukri Sukri sukri Sukri, sukri Sutrisno Sutrisno Sutrisno, Sutrisno Suwarso, Wahyu Handoyo Tamtomo, Bagas Tjuk Oerbandono Tri Eko Susilorini Utomo, Slamet Prasetyo Wahyono Suprapto Wibisono, Aryasatya Rafli Widi Nugroho Wirawan, Willy Artha Yudy Surya Irawan Zackhly, A Faeldo Mikail Zulkarnain, Akbar