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Masdani, Masdani
Politeknik Manufaktur Negeri Bangka Belitung
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ANALISIS KERUSAKAN MESIN FRAIS FEHLMANN PICOMAX 20 MENGGUNAKAN METODE ROOT CAUSE ANALYSIS DI POLMAN BABEL Sitinjak, Harpois S; Pratama, Adrian Deka; Masdani, Masdani; Napitupulu, Robert
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 5 (2025): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

This study aims to identify the root cause of damage to the vertical head motion mechanism of the Fehlmann Picomax 20 milling machine at the Bangka Belitung State Polytechnic of Manufacturing using the Root Cause Analysis (RCA) method. This descriptive research with a qualitative approach involves collecting primary data through direct observation and interviews with machine operators and technicians. Secondary data is obtained from the machine's repair history and related literature. Analysis using the 5W+1H and Fishbone Diagram methods reveals that the machine damage is caused by irregular maintenance, the use of inappropriate lubricating oil, the use of low-quality components, and untrained operators. The recommendations for improvement include operator training, regular repairs, the use of appropriate materials, and environmental maintenance. This research successfully achieves its main objective, which is to systematically identify and analyze the root cause of machine damage and provide improvement recommendations to prevent recurring damage.
REKONDISI HEAD MESIN FRAIS FEHLMANN PICOMAX 20 DI LABORATORIUM TEKNIK MESIN POLITEKNIK MANUFAKTUR NEGERI BANGKA BELITUNG Bindara, Bindara; Muhamad, Muhamad; Masdani, Masdani; Feriadi, Indra
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 5 (2025): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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This study aims to perform a reconditioning of the Fehlmann Picomax 20 milling machine head in the Mechanical Engineering Laboratory of the Bangka Belitung State Polytechnic of Manufacturing. The main damage to the machine head was caused by the accumulation of swarf and frozen grease in the gear and machine column sections. The reconditioning process includes data collection, problem identification, root cause failure analysis using the Root Cause Failure Analysis (RCFA) and 5-Why Analysis methods, repair planning, the repair process, and testing after the repair has been carried out. The test results show that the machine head has been able to function again according to its specifications, including in functional testing, machine performance testing, and column straightness testing. In addition, preventive maintenance has been designed to prevent similar damage from recurring in the future. This project is expected to improve the effectiveness of student learning and extend the operational life of the machine.
Pengaruh Variasi Fraksi Volume Komposit Berpenguat Serat Pelepah Kelapa Sawit Terhadap Kekuatan Tarik Daramawan, Tirta; Masdani, Masdani; Pranandita, Nanda
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 2 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i2.299

Abstract

The use of oil palm fronds is rarely used in the world of research. Oil palm fronds are only used in animal feed such as goats and cows, but in this study, oil palm fronds are used to make composite materials. Composites are a combination of reinforcement and binder. The reinforcement uses oil palm frond fiber while the binder uses resin. In this tensile test to determine the effect of the volume fraction of oil palm frond fiber with a volume fraction of 35%, 40%, and 45% while soaking in 5% NaOH for 2 hours. The results showed a tensile strength of 35% of 30.7 MPa, 40% of 38.8 MPa and 45% of 42.5 MPa. So the highest tensile strength is in the volume fraction of 45% and the lowest tensile strength is in the volume fraction of 35%.
Kekuatan Tarik Komposit Hibrid Berpenguat Serat Batang Pisang Kepok Dan Serat Bambu Dengan Perlakuan Asap Cair Rizki, Muhammad; Masdani, Masdani; Sugiyarto, Sugiyarto
Manutech : Jurnal Teknologi Manufaktur Vol. 17 No. 02 (2025): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v17i02.513

Abstract

The development of technology every year has increased so rapidly. Current technology is developed in various new innovations. Due to the increasing use of metals reducing the availability of natural resources, therefore alternative materials that are environmentally friendly and renewable are needed. Technology in the field of materials, for example, natural fiber composites reinforced with kapok banana stem fiber and bamboo fiber. The purpose of this study was to determine how variations in the volume fraction of hybrid composites can affect the tensile strength of composite materials. Tests were conducted using the ASTM D638-1 standard. The analysis used a direct experimental design method. This study used variations in the volume fraction of kapok banana stem fiber: bamboo fiber 10%: 20%, 15% : 15%, and 20%: 10%. Liquid smoke soaking time is 2 hours. The average value of the tensile test is highest in the composition of kapok banana stem fiber: 10% bamboo fiber: 20% with an average value of 45.8 MPa, while for the lowest tensile test value in the composition of kapok banana stem fiber: 20% bamboo fiber: 10% with an average value of 42.1 MPa.
OPTIMIZATION OF FDM 3D PRINTING PARAMETERS ON THE TENSILE STRENGTH OF FOOD-GRADE PLA FILAMENT USING THE TAGUCHI METHOD Pristiansyah, Pristiansyah; Hasdiansah, Hasdiansah; Subhan, Muhammad; Sukanto , Sukanto; Aswin , Fajar; Masdani , Masdani; Ariansyah , Ariansyah
Jurnal Rekayasa Mesin Vol. 16 No. 3 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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

Abstract

Additive manufacturing, particularly 3D printing, has emerged as a transformative technology in digital fabrication, enabling the rapid, accurate, and cost-effective production of complex components. Among the various 3D printing methods, Fused Deposition Modeling (FDM) is one of the most prevalent techniques, employing thermoplastic filaments as its primary material source. This research aims to determine the optimal process parameters to achieve the highest tensile strength in components fabricated using food-grade Polylactic Acid (PLA) filament. To accomplish this, the Taguchi method was implemented as a robust design tool to optimize the manufacturing process, improve material performance, and reduce both cost and resource consumption. The experimental design followed the L27 Orthogonal Array, and the analysis was conducted using the Signal-to-Noise Ratio (SNR) to identify the most significant parameter combinations affecting tensile strength outcomes. The investigated process parameters included extruder temperature, build plate temperature, layer thickness, infill pattern, and deposition speed. Based on the results, the optimal conditions for maximizing tensile strength were identified as follows: extruder temperature of 190 °C, build plate temperature of 60 °C, layer thickness of 0.2 mm, triangle infill pattern, and deposition speed of 60 mm/s. Additionally, the parameters with the greatest influence on tensile strength, ranked from most to least impactful, were: build plate temperature, layer thickness, infill pattern, deposition speed, and extruder temperature.
Implementation of Character Education through the Teaching Campus Program as an Effort to Strengthen Students’ Character Values Irwan, Irwan; Muslimah, Muslimah; Azis, Abdul; Masdani, Masdani
MUMTAZ : Jurnal Pendidikan Agama Islam Vol. 5 No. 3 (2025): December 2025
Publisher : Program Studi Pendidikan Agama Islam, Fakultas Tarbiyah, Institut Agama Islam (IAI) Ibrahimy Genteng Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69552/mumtaz.v5i3.3593

Abstract

Character education is a fundamental aspect in the formation of students' personalities, especially in the midst of the challenges of globalization and technological developments that have the potential to affect the moral values of the young generation. This research seeks to explain how character education is implemented through the Teaching Campus Program as an effort to reinforce students’ character values at SDN 16 Dasan Agung Baru Mataram. It also aims to identify the specific values being cultivated and to examine both the supporting and inhibiting factors in the process. Employing a qualitative approach with a case study design, the participants were selected purposively, consisting of the school principal, Islamic Religious Education teachers, Teaching Campus participants, and fourth-grade students. Data were gathered through participant observation, in-depth interviews, and documentation, with data validity ensured by triangulating sources and techniques. The findings reveal that character education at SDN 16 Dasan Agung Baru Mataram is integrated into learning activities, routine practices, and religious programs such as congregational prayers, morning literacy sessions, flag ceremonies, imtaq activities, and the enforcement of school discipline. Teachers serve as key role models (uswah hasanah) in instilling values among students. The values emphasized include religiosity, discipline, responsibility, honesty, cooperation, tolerance, and environmental awareness. Factors that support the implementation of character education involve the commitment of principals, teachers, and parents, the presence of a positive school culture, and consistent habituation programs. Meanwhile, the inhibiting factors include the influence of the environment outside school and social media, limited time for carrying out activities, and the lack of awareness of some students in applying character values. This study concludes that the Teaching Campus Program contributes positively to strengthening the implementation of character education in elementary schools.
PENGARUH FRAKSI VOLUME TERHADAP KEKUATAN MEKANIK PADA KOMPOSIT BERPENGUAT SERAT POHON TERAP MENGGUNAKAN RESIN POLYSTER BQTN-157 Abdullah hamid; Masdani, Masdani; Idiar, Idiar
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Composite is a system composed by mixing two or more different materials, in form and composition. Between two or more materials are insoluble in each other. Composites are very influential on the mechanical properties. The most influential factors are fiber fraction, fiber length and immersion used. This study aims to examine the effect of volume fraction variations on the mechanical properties of applied tree bark fiber reinforced composites. This study used matrix and fiber volume fraction 5% : 95%, 6% : 94%, 7% : 93% with 5% NaOH for 2 hours. The material used is fiber. Applied tree bark. Composites are made using the hand lay up method. The tests carried out were tensile test and Impact Charpy test with ASTM D638 Type 1 tensile test standard and ISO-179 impact test. The result of the highest tensile strength at 7% volume fraction that is equal to 36.32 Mpa. While the results of the smallest tensile strength at 5% volume fraction that is equal to 28.74 Mpa. And the results of the highest composite impact test at 7% volume fraction that is 0.051198 Joul/mm2. Meanwhile, the lowest impact strength was at 5% volume fraction with a value of 0.009652 Joul/mm2.
PENGARUH VARIASI FRAKSI VOLUME DAN LAMA PERLAKUAN NAOH PADA KOMPSIT BERPENGUAT SERAT TEBU DENGAN MATRIKS POLYESTER TERHADAP KEKUATAN TARIK DAN IMPACT osama, sayyid; Masdani, Masdani; Erwansyah, Erwansyah
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Material development is expected to increase efficiency in the field of engineering, judging from the current good material is a material that meets several main standards such as composites. Composite is a material consisting of a mixture of two or more main elements, and composites have a light weight, high strength, corrosion resistance and cheaper price. Presearch aims to find out the effect of variations in volume fraction and length of difference in immersion ofsugarcane fiber using NaOH solution against tensile strength and impact, so that it can be used as potential information about fiber. Sugarcane that can produce a new quality material. The study used variations in volume fractions of 10%, 15% and 20% as well as the length of immersion using NaOH for 30, 60 and 90 minutes. From the tests that have been done, the highest average tensile test value is in the volume fraction of 15% and the length of NaOH treatment of 60 minutes is 36.73MPa and the lowest average value is in the volume fraction of 20% and the length of NaOH treatment is 90 minutes by 21.16 MPa. The maximum average value on the impact test is at a volume fraction of 20% and the length of naOH treatment of 60 minutes is 0.07290 joules / mm², and the average minimum value is in the volume fraction of 10% and the length of naOH treatment is 90 minutes by 0.02849 joules / mm².
Co-Authors Abdul Azis Abdullah Hamid ACHMAD AFRIADI Ariansyah , Ariansyah Ariyanto Ariyanto Armannia, Vanessa Oksya Arriyani, Yang Fitri Aswin , Fajar Aswin, Fajar Bindara, Bindara Daramawan, Tirta Dedhe Jumriladin Putra Susila Diah Mayleni Dwi Yulian, Naufal Ego fernando Ego Fernando Erick wiratama Erwansyah, Erwansyah Fajar Abdallah Febrian Alfarisyi Feriadi, Indra Harwadi, Harwadi Hasdiansah, Hasdiansah Husman Husman Idiar, Idiar Ilham Ary Wahyudie Irwan Irwan J Hartati Khadadad Azizi Costacurta Khodad Azizi Costacurta Muhamad Muhamad Muhammad Iqbal Nugraha Muhammad Rizki Muhammad Subhan Muslimah Muslimah Nanda Pranandita Oktriadi, Yudi osama, sayyid Otniel Yulianto Pranata, Yogi Pratama, Adrian Deka Pristiansyah, Pristiansyah Rafly, Rafly Randa Randa Ridho Syahputra, Muhamad Ridhoni, Fauzan Robert Napitupulu Rollastin, Boy Sastra Setiawan Sastra Setiawan Sitinjak, Harpois S Solly Aryza Sugianto Sugianto Sugiyarto Sugiyarto Sukanto , Sukanto Suzen, Zaldy Sirwansyah W Afridani Yuli Dharta Yuliyanto Yuliyanto Yuliyanto Zaldy Kurniawan