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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Journal of Environmental Engineering and Sustainable Technology Journal of Mechanical Engineering Science and 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) Mechanical Engineering for Society and Industry 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 Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering 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 Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Pengaruh Ball Peening terhadap Kekerasan Baja Tahan Karat AISI 316L Widodo, Teguh Dwi; Raharjo, Rudianto
Rekayasa Mesin Vol 7, No 3 (2016)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (593.929 KB) | DOI: 10.21776/ub.jrm.2016.007.03.7

Abstract

In this work, ball peening was performed in order to evaluate its effect on the AISI 316L hardness. The process was conducted by employing AISI E52100 Chrome Steel ball which has hardness 752 HVN as bomber. In this research ball peening process was performed at three different nozzle pressure (6, 7, and 8 bar) for 5 minutes. Vickers Micro Hardness Tester and Digital Optical Microscope was used to characterize the samples hardness and grains structure respectively. The results showed that the hardness of AISI 316L was improved. It may due to plastic deformation which toke places on its grains.
Analisis Penambahan Coupling Agent terhadap Sifat Tarik Biokomposit Kulit Waru (Hibiscus Tiliaceus)-Polyester Wirawan, Willy Artha; Widodo, Teguh Dwi; Zulkarnain, Akbar
Jurnal Rekayasa Mesin Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.809 KB) | DOI: 10.21776/ub.jrm.2018.009.01.6

Abstract

The aim of this research is to investigate the effect addition of silane coupling agents of Waru bast-polyester composite on tensile strength. Biocomposite is an innovation in material engineering made from the environment-friendly and potentially-developed bast fibers of Waru tree. Waru bast fibers, as reinforcement, were prepared by alkali procces employing using 6% NaOH solution for 120 minutes and then were added coupling agent with variation of 0%, 0.25%, 0.5%, 0.75% and 1.0%. The biocomposite was formed by continuous fiber arrangement using 60:40 fiber-matrix mass fractions with vacuum pressure resin infusion method. Tensile test specimens were formulated base ASTM D638-03 standard. Biocomposite investigation was performed by tensile test, while bond quality observation utilized use micro photo. The results of the study show that the highest strength of biocomposite was 401,368 Mpa on the silane coupling agent addition0.75%
Desain Manufaktur Bracket Aluminium Raharjo, Rudianto; Widodo, Teguh Dwi; Bintarto, Redi
Jurnal Rekayasa Mesin Vol 9, No 2 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.243 KB) | DOI: 10.21776/ub.jrm.2018.009.02.8

Abstract

Machining is one of the processes in a manufacturing of a product. Manufacturing design is needed for improving the quality of a product. The desired manufacturing process is the achievement of a product with a smooth level of roughness and a short time. Bracket is one component of a series of machines. Work on bracket using CNC milling and Turning machine. The material used is aluminum alloy 6063. The main variables in this machining process are the speed of feeding, cutting speed and feeding motion. The results achieved in the machining process of this bracket are for the roughness on the surface of the N5 with Ra (ideal) = 0.4 μm of Ra (actual) = 0.410 μm. As for the roughness of N6 with Ra (ideal) = 0,8 μm obtained result Ra (actual) = 0,832 μm and 0,625 μm. Total machining time for one workpiece are 1 hour 57 minutes 25 seconds.
Analisa Struktur Mikro dan Kekuatan Bending Sambungan Las TIG dengan Perbedaan Kuat Arus Listrik pada Logam Tak Sejenis Aluminium Paduan 5052-Baja Galvanis dengan Filler Al-Si 4043 Bintarto, Redi; Widodo, Teguh Dwi; Raharjo, Rudianto; Ma’arif, Moh. Syamsul; Dewi, Francisca Gayuh Utami; Pratama, Gesha Denny
Jurnal Rekayasa Mesin Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.01.14

Abstract

This study aims to determine the various effect of heat input due to varied electric current on microstructure of the weld joints and the bending strength of 2 dissimilar metals (aluminum alloy 5052 and galvanized steel) with Al-Si 4043 as filler. This experimental research was worked out by varying the strength of the current which can then be calculated into a heat input. The current inputs applied were 30.8 J / mm (70A), 35.2 J / mm (80A) and 39.6 J / mm (90A) while the protective gas flow rate used is 14 liters / minute. This study showed that the increase in heat input greatly affects the shape of the weld area microstructure, i.e. the microstructure and bending strength. Greater heat input due to higher current can melt larger area, so that the join process occured better. The highest bending strength at 9.05 Mpa was achieved for heat input at 39.6 J / mm or strong current of 90 A. The weakest bending strength at 8.88 Mpa was achieved for heat input at 35.2 J / mm or a strong current of 70 A.
Pengaruh Tegangan dan Waktu pada Proses Elektropolishing terhadap Surface Roghness Material Stainless Steel AISI 316L Widodo, Teguh Dwi; Raharjo, Rudianto; Kusumaningsih, Haslinda; Bintarto, Redi; Siswoyo, Redi Cipto; Sasongko, Mega Nur
Jurnal Rekayasa Mesin Vol 10, No 3 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.03.11

Abstract

The purpose of this work is to reveal the surface roughness and topography of AISI 316L stainless steel due to electropolishing processes. In this paper, AISI 316L was electropolished in various times of immersion and various voltage of the processes. The mechanism of electropolishing is eroding the surface of the substrate by controlling the electron excitation process. The electropolishing processes were carried out at 4, 5, and 6 minutes also in three different voltage 4, 6, and 8 volts. The results show that the surface roughness decrease as the treatment time and also as an increase in voltage.
PEMANFAATAN TEKNOLOGI ELEKTRO-MEKANIS UNTUK PROSES PENGOLAHAN LIMBAH BATIK Widodo, Teguh Dwi; Raharjo, Rudianto; bintarto, Redi; Firas, Alfian
DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 4, No 1 (2020)
Publisher : Politeknik Negeri Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32486/jd.v4i1.433

Abstract

Desa Dermo adalah salah satu dari 14 desa yang ada di kecamatan mojoroto dengan Luas 5.005 M2 dengan jumlah penduduk sebanyak 5.500 jiwa. Desa Dermo berbatasan langsung dengan desa ngonggot disebelah utara, desa Mrican disebelah selatan, desa Maron disebelah Barat dan Desa Jongbiru disebelah Timur. Desa ini sebagian warganya hidup dari pertanian, kerajinan dan industri batik. Desa Dermo merupakan desa unggulan penghasil batik.Industri Batik merupakan industri rumah tangga yang mampu menopang sebagian penduduk desa Dermo.Permasalahan limbah batik akan menimbulkan permasalahan permasalahan lainnya yaitu Ekologi, Kesehatan, Sosial, bahkan Ekonomi. Limbah batik yang dibuang terbukti merusak ekologi lingkungan, menimbulkan beberapa penyakit gatal pada masyarakat sekitar, serta menimbulkan gesekan pada masyarakat. Masalah limbah batik sampai sekarang belum terselesaikan dengan baik dikarenakan harga pengolah limbah yang mahal bagi masyarakat.Solusi utama yang diberikan untuk mitra adalah Alat pengolah limbah batik yang ramah lingkungan, hemat energy, murah, dan mudah pengoperasiaannya. Penggunaan metode Elektro- Mekanik Technology merupan pilihan yang tepat untuk pengolahan limbah sekala UMKM. Mekanisme Technologi ini yaitu dengan memanfaatkan reaksi Anoda dan Katoda untuk menggumpalkan limbah yang ada dan kemudian menyaringnya secara mekanik
Pengaruh Clamping Frame Kayu Meranti dan ASTM A36 pada Friction Spot Joining AL 1100 dan PVC Raharjo, Rudianto; Hamidi, Nurkholis; Widodo, Teguh Dwi; Bintarto, Redi; Habibulfalah, Endi
Rekayasa Mesin Vol 11, No 2 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.02.12

Abstract

In this paper, the effect of welding parameters on the shear strength of Al-PVC hybrid structures was discussed. This Research developed welding parameters in the form of Plunge Depth, heating time, and clamping frame materials. By these different parameters would result in different shear strength of welded materials. Following optimization of the process, a detailed comparison of the properties and microstructures of two different materials (meranti wood and ASTM A36 Steel) would affect to different values of thermal conductivity. The Aluminum used was Al 1100, which was welded by using a friction stir spot welding method with Polyvinyl Chloride (PVC). In this study, by the different heating times, the shear test was carried out with the ASTM D3163 standard. In this study, it was found that the maximum temperature of Aluminum occurs during the 2nd second of the welding process and then decreased in the 5th second until 60th second. However, the optimum shear strength found at 20th second. Following heat transfer and degradation materials, the 2mm plunge depth has a higher temperature and higher shear strength than 1,5mm plunge depth. Differences in the response of the two depth were attributed to the difference in mechanical interlocking. This study found that the ASTM A36 clamping frame maximum shear load of 182.4 N is higher than meranti wood frame of 125.5 N. Differences in these value are attributed to the differences of the thermal conductivity, which meranti wood had a lower thermal conductivity than ASTM A36. These have findings significant implications for the commercial application of welding hybrid structures. The best way to take advantage of the benefit of AL-PVC Structure Hybrid for friction stir spot welding would appear to be 20 second heating time, 2mm plunge depth with ASTM clamping frame.
Pengaruh Perendaman Serat Sabut Kelapa Pada Air Batu Kapur Terhadap Wettability Sutrisno, Sutrisno; Soenoko, Rudy; Irawan, Yudy Surya; Widodo, Teguh Dwi
JURNAL PILAR TEKNOLOGI : Jurnal Ilmiah Ilmu Ilmu Teknik Vol 5, No 1 (2020): JURNAL PILAR TEKNOLOGI
Publisher : LPPM Universitas Merdeka Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33319/piltek.v5i1.47

Abstract

Abstract— Processing of natural fibers as a support material for composite materials has been widely carried out. Some studies use chemicals as a medium for processing fiber while the treatment with natural ingredients has not been done much. This study discusses the ability of the matrix to penetrate the coconut fiber. Coconut fiber that has been cleaned soaked in a solution of limestone water. Immersion is done with a variation of the lime mass percentage of 0; 2.5; 5; 7.5; 10% with 8 hours soaking time. The matrix used is unsaturated polyester yucalac 157 BQTN-EX. Wettability testing by dripping a matrix on coconut fiber. Coconut coir fibers that have been dripped with a matrix in the photo to determine the contact angle. The results of measurements and observations that with variations in mass percentage of 5% limestone with an immersion time of 8 hours have a contact angle of 11O˂Φ˂31O. Immersion with a percentage of 2.5% shows the surface of the fiber has not changed. Immersion of 7.5% and 10% of the surface of the fiber has been damaged, so the matrix can not absorb the coconut fiber to the maximum. Keywords—: coconut fiber; limestone water; contact angle; wettability; SEM.
Pengembangan Desain Batik Dermo Untuk Penguatan Ekonomi Kreatif Kota Kediri Widodo, Teguh Dwi; Raharjo, Rudianto; Bintarto, Redi; Putri, Debri Harynia; Abdullah, Harnan Malik
DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 5, No 1 (2021)
Publisher : Politeknik Negeri Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32486/jd.v5i1.635

Abstract

Batik products provide the second largest contribution of 20-30 percent of gross domestic product (GDP) in the creative economy sub-sector. In the sub-district of Dermo, some of its residents live from agriculture, handicrafts and the batik industry. From the team's observations, it was found that Dermo Village was the leading village for batik producing. The Batik industry is a home industry that can support a portion of the population of the Dermo Village. The development of batik is very much influenced by the design abilities of the batik makers. The batik groups in Kelurahan Dermo are mostly housewives, so the problem of design is a problem. But no less creative and innovative, handicrafts have become one of the largest creative industries in Indonesia, although they are not as sophisticated as today's electronic devices or gadgets, handicrafts are still one of the alternatives or choices of society to satisfy and please their hearts. Moreover, Indonesian handicrafts are truly unique and different, supported by many natural resources such as rattan, wood, bamboo and human resources in Indonesia, Indonesian people are freer in producing and creating handicraft products in any form, so that businesses like this can has progressed very rapidly and made Indonesian handicrafts can be shipped abroad. However, the time needed to make batik is very long, especially if people order a special motif that does not have many guidelines or examples of batik designs. So this makes batik craftsmen reluctant to accept large quantities of typical batik orders. These can reduce the confidence of consumers who want to make typical batik in large quantities. For this reason, the team tried to develop batik designs with distinctive motifs which were manifested in the form of prints. From the design development that has been done by making batik stamps with typical motifs of the City of Kediri, this is able to reduce the time for batik production and make batik craftsmen more confident in receiving orders in larger quantities than before. So that with this motif stamp, the batik production of Dermo Kediri Village can increase.
Pengaruh Kecepatan Pengadukan pada Proses Stircasting terhadap Sifat Mekanik pada Paduan Aluminium Jauhari, Mochamad Helmi; Darmadi, Djarot B; Widodo, Teguh Dwi
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.5

Abstract

The composite material is a material composed of a mixture or combination of two or more of the major elements that macro differ in shape and material composition that basically can not be separated. In this research, the aluminum used was the outcome of production cesspool with the addition of volcanic dust from Mount Kelud by 2% as reinforcement. The stir casting process is the casting process by adding a material (powder form) in pure metal (aluminum), which has been melted and then stirring constantly. After that, the composite materials (the volcanic dust from Mount Kelud) were mixed slowly into the stirred liquid material. In this research, the variations of stirring speed were 0,200,300,400,500  and 600 rpm. The stirring each time for 4 minutes. In this study, the stirring speed in the casting process was 0, 200, 300, 400, 500, and 600 rpm. Tensile test, Impact test, and microstructure observations were carried out on the casting results. From these tests, the highest modulus of elasticity and impact value was obtained at the 600rpm stirring process. It may due to globular grains are more evenly distributed. And the result of metallographic testing was stirring speed could affect the amount and density of composite grain structure. The faster the stirring, the grain structure was getting smaller and close.
Co-Authors ABDUL HAMID Abdullah, Harnan Malik Abidin, Muhammad Zaimi Bin Zainal Achmadi Achmadi Adli, Danung Nur Agus Budiarto Ahmad Robittah Alfeus Sunarso Anindito Purnowidodo Anjasari, Asri Aprilia Rizky Riadini Ari Vithon Khasib Mubarok Ari Wahjudi Ari Wahyudi Arif Wahyudiono Atsir Farhan Azahra, Siti Amalina Azhar, Andika Bilqis Afifa Dana Putri D, Dhimas Kaukabi Darmadi, Djarot Bangun Denny Widhiyanuriyawan Dewi, Francisca Gayuh Utami Diah Ayu Fitriani, Diah Ayu Djarot B Darmadi Djarot B. Darmadi, Djarot B. Dwi Kristanto Dwi Kristanto Dwi Prasetyo Erwin Sulistyo Femiana Gapsari MF 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 Kamil, Muhammad Prisla Kozin, Muhammad Kusumaningsih, Haslinda Lilis Yuliati Ma’arif, Moh. Syamsul Maftuch Maftuch Margono Margono Mega Nur Sasongko Mega Nur Sasongko Moch. Agus Choiron Moch. Syamsul Ma'arif Moh. Syamsul Ma’arif Nadia Ananda Prasetia Dion Nugroho Adi Purnomo Nugroho, Arief Budi Nurkholis Hamidi Oyong Novareza Prabowo Puranto Pratama, Gesha Denny Putri, Debri Harynia Putu Hadi Setyarini Rahmadhani Angger Syahputra Redi Bintarto Redi Bintarto Redi Bintarto, Redi Ridho Dwi Syahrial Rudianto Raharjo Rudianto Raharjo Rudianto Rudianto Rudy Soenoko Rudy Soenoko Runi Asmaranto Sabitah, A'yan 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 Utomo, Slamet Prasetyo Wahyono Suprapto Wibisono, Aryasatya Rafli Widi Nugroho Wirawan , Willy Artha Wirawan, Willy Artha WIWIEN ANDRIYANTI Yudy Surya Irawan Zulkarnain, Akbar