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All Journal Rekayasa Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Scientific Journal of Mechanical Engineering Kinematika Journal of Community Service and Empowerment Community Empowerment International Journal of Mechanical Engineering Technologies and Applications (MECHTA)
Moch. Syamsul Ma'arif
Brawijaya University
Arts Humanities Automotive Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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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 Variasi Bio Based Adhesive terhadap Kekuatan Peeling dan Shearing Kayu Pinus pada Adhesive Joint Ma’arif, Mochammad Syamsul; Fadlurahman, Muhammad; Anam, Khairul
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.2021.012.02.2

Abstract

The methods of joining engineering materials using adhesives is mostly implemented by using synthetic adhesives from non-renewable sources. Even though it has good joining performance, its poisonous nature and difficult to decompose naturally makes the adhesive needs to seek alternatives that are more environmentally friendly. Another reason is to support FAO campaigns for the use of environmentally friendly and biodegradable materials. One that has the potential to replace synthetic one is adhesives from natural sources such as gum rubber, jackfruit, and breadfruit. Because each natural sap has a different composition, the adhesive strength will also be different. Therefore it is necessary to examine the adhesive strength of each of these natural gums. In this research, natural adhesives (gums) and synthetic adhesives were used to joint pine wood as a test specimen. After joining, peeling and shearing tests on the specimens were carried out so that the mechanical strength of the joints for each adhesive variation was recognized. Fracture analysis was then performed to analyze the mechanism of joint failure for each adhesive variation. From this research, the highest peeling strength was obtained from rubber tree sap of 0.15 MPa, while the highest shearing strength was also obtained for rubber sap of 0.68 MPa.
Performance of Non-rotating Shoulder Tool in Weld Joint and Forces of Friction Stir Welding Moch. Syamsul Ma'arif; Christopher David Cook
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 4 No. 1 (2019)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v4i1.8435

Abstract

Lighter construction in the structure of transportation make industries rely on aluminium as construction materials and new technology of joining such as friction stir welding become increasingly applied. Since welding force in the process is considered high so that many researches are focussed on this area. In this research, a new method of welding by using non-rotating shoulder tool and combined with pre heating was investigated. The result give confirmation that the methods was proven to be adequate to produce sound welding when the parameters chosen was rightly. Eventhough the method was able to lower the force but significant results only observed for Fx while another force, i.e. Fz, did not have similar significant results. Non-rotating shoulder with additional heat input has limited capability in lowering forces in Fz because of its design, while has very good capability to lower Fx. Also, it was obvious that the heat source using propane torch was not adequate to give uniform additional heat input in all welding phase and still need another moee porent heat source in order to improve the performance.
PENGARUH DAYA PEMANASAN MICROWAVE OVEN TERHADAP KEKUATAN TARIK KOMPOSIT SERAT DAUN NANAS BERMATRIK EPOXY Redi Bintarto; Moch. Syamsul Ma’arif; Fransisca Gayuh Utami Dewi; Sugiarto Sugiarto; Nurkholis Hamidi; Pudya Heryana
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.207

Abstract

This study aims to determine the effect of microwave oven heating power on pineapple leaf fiber on the tensile strength of epoxy matrix composites. In this study, the composite reinforcement used was pineapple leaf fiber without treatment and pineapple leaf fiber heated using a microwave oven with 250W, 440W, and 715W power for 15 minutes after being given 6% NaOH immersion for 2 hours. The composite manufacturing method used is the vacuum assisted resin infusion method. Tensile testing was carried out on pineapple leaf fiber reinforced composite specimens according to ASTM D638-01 standard. The results showed that the higher the heating power of the microwave oven, the higher the tensile strength of the composite due to the better adhesion between the fiber and the epoxy matrix. The highest tensile strength was obtained in the pineapple leaf fiber-reinforced composite with a heating power of 715W of 147.9 MPa, then heating with a power of 440W of 136.6 MPa, heating with a power of 250W of 125.5 MPa, and the lowest on specimens of pineapple leaf fiber composite without treatment of 107.1 MPa. In addition, the SEM results also show that the surface roughness of the fiber increases with the addition of heating power and the wettability results also show that the wettability between the fiber and the epoxy matrix is ​​getting better as the heating power of the microwave oven increases.
COMPARISON OF CHATTER CONTROL OF VARIABLE AND REGULAR HELIX TOOLS IN THE ALUMINUM END-MILLING PROCESS Achmad As’ad Sonief; Moch. Syamsul Ma'arif; Pratikto Pratikto; Hans Juliano
International Journal of Mechanical Engineering Technologies and Applications Vol. 4 No. 1 (2023)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2023.004.01.6

Abstract

In the chatter, machining operations are undesirable because of the phenomena that affect product results, machining accuracy, tool life, and high operating value. Chatter is a vibration phenomenon that occurs in cutting tools due to the self-excitation of the influence of cutting parameters during the operation process of the machine. Types of chatter in machinery are regenerative and resonant. Because the pitch angles of variable helix tools vary, the helix angles of variable tools produce different tooth passing frequencies on each tool eye next to each other and can be used to prevent and control resonance. This study aimed to compare chatter control from the variable helix and regular-angle tools in the aluminum end milling process. The method is carried out through the end milling process experiment to determine the chatter control of the variable helix and regular-angle tools through the stability loop diagram. The results from this study were obtained by comparing control chatters in the milling process through controlling variable and standard helix angles as a guideline to produce the best surface roughness in the end milling process made from aluminum. The comparison of estimated control charts from variable helix tools is more comprehensive than regular helix tools.
Camera-based security system application at Perumahan Taman Embong Anyar 1, Dau District, Malang Moch. Syamsul Ma'arif; Sugiarto Sugiarto; Erwin Sulistyo
Community Empowerment Vol 8 No 5 (2023)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.8232

Abstract

At Taman Embong Anyar 1 Housing Complex in Dau District, Malang, there is a high crime risk due to residents' activity patterns and open access to residential areas. One of the community's biggest issues is a lack of understanding of using security technology. As an alternative to monitoring the situation in residential areas, CCTV installation and operation assistance are needed to increase environmental security. Beginning with a survey of the areas where CCTV must be installed, the CCTV system must then be selected, installed, and its operation explained to all users. The residents can use and maintain the CCTV system as a result of the entire series of activities. The environment is made more secure and the workload of security officers is minimized with the installation of CCTV.
Assistance in the implementation of occupational safety and health towards halal certification for small and medium enterprise Iis Siti Aisyah; Moch. Syamsul Ma’arif; D. Daryono; B. Budiono
Journal of Community Service and Empowerment Vol. 4 No. 2 (2023): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jcse.v4i2.26644

Abstract

Pawon Ning Nur is one of the UMKM affected by Covid19, because students have returned to their hometowns. So that what was originally a business in the form of a food stall, has turned into a frozen food business, especially Bandeng Otak-otak. Marketing difficulties due to not having a Halal certificate prompted the team to provide assistance. The team consists of lecturers and students of PMM-Mitra Dosen. The objective this activity was to familiarize Occupational Safety and Health when pursuing for halal certification of Small and Medium Enterprise. The methods consist of administrative assistance for registration of halal certificates, assistance when inspections are carried out by BPOM, helping to fulfill requirements and findings, as well as conducting OSH training, and providing assistance with production equipment. The results were obtained which satisfied UMKM partners because the activities fulfilled several aspects, Partners obtain Halal Certificates with the number LPPOM JI-07030005171221. Partners have understood and implemented Occupational Health and Safety (OSH). Partners also received safe production equipment donation.
Co-Authors Achmad As’ad Sonief Anam, M. Khairul B. Budiono Christopher David Cook D. Daryono Dewi, Francisca Gayuh Utami Erwin Sulistyo Fadlurahman, Muhammad Fransisca Gayuh Utami Dewi Hans Juliano Iis Siti Aisyah Nurkholis Hamidi Pratama, Gesha Denny Pratikto Pratikto Pudya Heryana Redi Bintarto Redi Bintarto, Redi Rudianto Raharjo Sugiarto Sugiarto Sugiarto Sugiarto Widodo, Teguh Dwi