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Putra, Reza
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Identifying key parameters affecting the mechanical properties of 3D-printed ABS materials Rizki, Muhammad Nuzan; Putra, Reza; Durmuş, Alpaslan; Isra, Muhammad
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7664

Abstract

Advances in additive manufacturing (AM) technology have opened up opportunities for the rapid and precise production of complex components, including those used in unmanned aerial vehicle (UAV) structures. However, ABS material prints often exhibit variations in quality due to the influence of various interacting process parameters. This study aims to analyze the influence of four parameters: infill pattern, layer thickness, print speed, and chamber temperature on two important mechanical properties: ultimate tensile strength (UTS) and elongation. The Taguchi method with an experimental design using an orthogonal array L9(3⁴) was applied to minimize the number of trials without sacrificing important information. The tensile test data were analyzed using the signal-to-noise ratio (S/N ratio) and Analysis of Variance (ANOVA). The results showed that the infill pattern was the most dominant parameter, contributing 80.78% to UTS and 73.16% to elongation. Chamber temperature has a significant effect on elongation (19.78%), as it enhances interlayer bonding through temperature control in the printing chamber. Layer thickness contributes moderately to UTS (10.01%), while print speed has the smallest effect on both responses. These findings emphasize the importance of selecting the appropriate combination of parameters to consistently improve ABS print quality and serve as a foundation for developing process standards based on experimental data.
Retooling Coconut Peeling Machine for Community Empowerment in Paloh Punti Village Muara Satu Putra, Reza; Muhammad, M; Asnawi, A; Islami, Nurul; Sayuti, Muhammad; Murdani, Murdani; Wahyuni, Rita
JURNAL HURRIAH: Jurnal Evaluasi Pendidikan dan Penelitian Vol. 4 No. 4 (2023): Jurnal Hurriah: Jurnal Evaluasi Pendidikan dan Penelitian
Publisher : Yayasan Pendidikan dan Kemanusiaan Hurriah Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56806/jh.v4i4.161

Abstract

The partner in this PKM is Paloh Punti Village, Muara Satu, Lhokseumawe City. Paloh Punti Village is one of the villages in the Unimal Campus area which is 3 km from the Bukit Indah Campus. In general, the jobs of the people in Paloh Punti village are farmers and livestock breeders. Almost 80% of plantation land in this village is planted with coconut trees. Selling coconut plantation products is one of the main sources of income for the people of Paloh Punti village. So far, the selling value of coconuts in the Paloh Punti area is relatively low, ranging from 1,800 to 2,000 rupiah. This low selling value is due to the coconut plantation owners selling their produce intact, known in the community as round coconuts. To increase the selling value of these coconuts, the Community Service is trying to offer assistance in making a Coconut Skin Peeling Machine which will later be donated to the Paloh Punti Village Community under the coordination of the Village Leadership. This service will be carried out in stages, starting with counseling, introduction to peeling tools/machines, testing the tools, evaluating the economic value and handing over the coconut peeling machine to the village leadership. Counseling and training on the use of this tool begins with designing a tool using the ATM method (Observe, Imitate and Modify) from pre-existing types of equipment and adapt it to the needs of supporting machines.
Utilization of Vacuum Pump in Harvesting Process of Stingless Bee Honey for Empowerment of Honey Farmer Community. Aby, Muhammad; Putra, Reza; Muhammad, Muhammad; Rahman, Abdul; Hafiz, Ridho; Islami, Nurul
JURNAL HURRIAH: Jurnal Evaluasi Pendidikan dan Penelitian Vol. 5 No. 1 (2024): Journal Hurriah: Journal of Educational Evaluation and Research
Publisher : Yayasan Pendidikan dan Kemanusiaan Hurriah Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56806/jh.v5i1.178

Abstract

The process of harvesting stingless bee honey requires special tools, the use of vacuum pumps as a harvesting medium makes it easier for farmers, saves time, and maintains honey quality. The purpose of this service is to provide training to the community on how to use a honey harvesting tool with a vacuum pump with a capacity of 7 liters/minute, the assembly process and maintenance. From the results of the service that has been carried out for beekeepers in Pulo Meria Village, it is found that the honey suction tool from the Vacuum pump is very useful for farmers, easy to use, production capacity of 1 liter per hour and portable. The difference in the amount of capacity is due to the different honey harvesting process due to having different sized honey bags and different honeycomb contours. From the empowerment of the honey farming community, it was found that 89% of the farmers got better quality honey harvests and increased honey production by 57% more.
Reuleut Timu Village Youth Empowerment through Service Training for Refrigeration Equipment in the Neighborhood of Malikussaleh University Aby, Muhammad; Putra, Reza; Asnawi, A; Muhammad, M; Islami, Nurul; Dailami, D; Rianda, Faizar
JURNAL HURRIAH: Jurnal Evaluasi Pendidikan dan Penelitian Vol. 5 No. 4 (2024): Journal Hurriah: Journal of Educational Evaluation and Research
Publisher : Yayasan Pendidikan dan Kemanusiaan Hurriah Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56806/jh.v5i4.188

Abstract

The environment of the Reuleut Campus of Malikussaleh University has a dense area along with the increase in the number of students who inhabit the area. The number of offices and boarding houses with AC facilities is an opportunity for a property as an AC service technician and the increasing need for AC Service Technicians. The purpose of the service is to provide knowledge and skills in the maintenance and repair of Split Water Conditoner (AC) to the Youth of the Environmental Village of Malikussaleh University. The implementation of Service activities was carried out with Berkat Maju Service partners located at SP KKA Dewantara District, North Aceh Regency. The training uses theoretical, practical and internship methods. In the first method, participants are given knowledge related to theory in the form of practical support materials. Practice Methods related to air conditioner maintenance and repair starting from the introduction of work aids, installation and disassembly, service and damage detection are carried out directly by providing 1 unit of air conditioner as a practice material. Internship methods are carried out to provide participants with direct experience in the field conditions alongside partners The results of the activity show an increased level of participant knowledge about cooling equipment, based on evaluation data that indicates understanding of basic cooling equipment, equipment servicing, AC disassembly, and proper Freon detection.
Training on Introduction to Creative Economy Enterprises: 'Trigona Bee Honey Cultivation' for Students of Alfata Islamic School, Banda Aceh Aby, Muhammad; Putra, Reza; Muhammad; Yusuf, Jafaruddin; Muhammad Gazza; Ihsan, Muhammad; Islami, Nurul
JURNAL HURRIAH: Jurnal Evaluasi Pendidikan dan Penelitian Vol. 6 No. 1 (2025): Jurnal Hurriah: Journal of Educational Evaluation and Research
Publisher : Yayasan Pendidikan dan Kemanusiaan Hurriah Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56806/jh.v6i1.228

Abstract

Stingless bee (linot) cultivation is a promising economic activity that supports food security programs but remains underutilized due to limited public knowledge. This study describes a training initiative conducted at AlFata Islamic Boarding School in Banda Aceh, aimed at introducing students to the techniques and benefits of stingless bee cultivation to promote local economic potential as a sustainable family income source. Employing a multifaceted approach, the training included theoretical instruction, field visits, practical exercises, and pre- and post-training knowledge assessments. The results revealed heightened participant enthusiasm and significantly enhanced understanding of cultivable bee species, cultivation methods, harvesting processes, and the health and economic benefits of honey production, as demonstrated by A Bee Honey’s operations. This initiative highlights the potential of stingless bee cultivation to foster sustainable economic development and underscores the importance of educational outreach to empower communities, particularly young learners, in leveraging local resources for food security and economic resilience.
Influence of shielding gas flow on the TIG welding process using stainless steel 304 material Aljufri, Aljufri; Sofyan, Sofyan; Rizki, Muhammad Nuzan; Putra, Reza; Mawardi, Indra
Journal of Welding Technology Vol 6, No 1 (2024): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v6i1.5322

Abstract

A common issue encountered with main heat exchanger equipment is improper operation, which can lead to the development of cracks in the stainless-steel pipes. The welding process alters the metal microstructure in the heat-affected zone, thereby affecting the mechanical properties of the welded joint. To mitigate this issue, TIG welding with argon shielding gas is employed. This method helps prevent oxidation and ensures the formation of a stable welding arc in 304 stainless steel, which is renowned for its excellent mechanical properties and corrosion resistance. The objective of this study is to evaluate the impact of variations in shielding gas flow on the mechanical properties of 304 stainless steel plates during the TIG welding process. The aim is to determine the optimal settings for producing robust and long-lasting welded joints. To assess the hardness of the welded joints, we employed a Brinell-type Hardness Tester FB-3000LC machine. A Brinell steel ball indenter measuring 5 mm on the HBW scale and applying a load of 125 Kgf was utilized. At a protective gas flow rate of 8 L/min, the average tensile stress was 44.72 N/mm², strain was 0.177, modulus of elasticity was 2518 MPa, and hardness was 99.712 HBW. Increasing the gas flow rate to 13 L/min resulted in an average tensile stress of 47.50 N/mm², strain of 0.189, elastic modulus of 2525 MPa, and hardness of 105.522 HBW. Further increasing the gas flow rate to 18 L/min led to an average tensile stress of 49.69 N/mm², strain of 0.192, modulus of elasticity of 2597 MPa, and hardness of 106.704 HBW. Based on the research findings, it was observed that the weld area exhibited an increase in hardness values due to the heat generated during the welding process. The use of protective gas flow during welding is deemed effective in producing well-formed welded joints, as it prevents fractures from occurring within the weld area during the tensile test process. The choice of protective gas is determined by the dimensions of the material plate.
Educational Transformation Through Virtual Learning Environment (VLE) as an Effort to Improve Students' Critical Thinking Competence Setiawaty, Sri; Imanda, Riska; Putra, Reza
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.2607

Abstract

Industrial revolution 4.0 in the 21st century, many countries have made their country's roadmaps to be able to survive in the midst of dynamic changes. The 21st century is marked by information that can be accessed by anyone, anytime and anywhere, computing or the use of robots, automation or work that can be done routinely and communication that becomes unlimited in every aspect of people's lives. The purpose of this research is to, 1) find out the feasibility of the developed Virtual Learning Environment (VLE) media for use in learning, 2) find out the perceptions of teachers and students towards the developed Virtual Learning Environment (VLE). This research and development (R&D) research adapt the 4-D development model (define, design, develop and desiminate). The results of this research, namely the validity of the learning media developed was obtained from the assessment results with an average percentage of 93% in the 'Very Good' category, the quality of the learning media developed obtains assessment results with an average percentage of 92% in the category "Very Good" and received a positive response from students with a percentage ≥ 90%. Learning uses integrated Android-based VLE media STEM approaches are able to improve 4C competencies and beyond provide a positive response to significant student learning outcomes.
The Influence of Spindle Rotation Variation on The Wear of Carbide Cutting Tools Using a Gedee Weiler Lz-330 G Lathe Aljufri, Aljufri; Syahputra, Rio Mandala; Alchalil; Putra, Reza; Setiawan, Adi; Rahman, Abdul; Suryadi
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 2 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i2.25326

Abstract

This study was conducted to determine the effect of spindle speed on the wear rate of CNMG 120404 carbide cutting tools using a dry machining process without coolant. The specimens used were AISI 1045 steel shafts, The cutting tool used was a CNMG 120404 carbide with conditions assumed to be the same in each experiment. The machine used was a Gedee Weiler LZ-330 G lathe with fixed parameters of 0.2 mm/revolution feed and 0.4 mm cutting depth, as well as spindle speed variations of 450 rpm and 660 rpm. The cutting time was carried out in stages starting from 5, 10, 15, 20, to 25 seconds. In this study, the parameters observed included tool wear and the surface roughness of the turning results on the AISI 1045 specimen. Tool wear was measured using visual macro documentation, while surface roughness was tested with a surface roughness tester. The results showed that the lowest wear value occurred at 450 rpm with a cutting time of 5 seconds, amounting to 0.012 mm, while the highest wear was achieved at 660 rpm with a cutting time of 25 seconds, amounting to 0.036 mm. In terms of surface quality, the lowest roughness value was obtained at 450 rpm with a cutting time of 5 seconds, amounting to 2.43 µm, while the highest roughness occurred at 660 rpm with a cutting time of 25 seconds, amounting to 4.56 µm. This data shows that the higher the speed and the longer the cutting time, the greater the tool wear and the lower the surface quality due to friction and increased temperature in the cutting zone. Wear on carbide tools is more influenced by friction between the tool and the workpiece and the duration of cutting. The speed factor is not as dominant as the effects of friction and cutting duration.
Co-Authors Abdul Rahman Abdul Rahman Aby, Muhammad Adi Setiawan Akmal, Syarifah Alchalil Alchalil Aljufri Aljufri aljufri aljufri, aljufri Apandi S, Arpan Asnawi Asnawi Asnawi Asnawi, A Azhari, Nur Jannah Azhari, Wafiq Dabet, Abubakar Dailami, D Daniel Happy Putra Delfian Masrura Durmuş, Alpaslan Fachry Abda El Rahman Faisal Faisal Ferri Safriwardy Hafiz, Ridho Hafli, T Hidayat, Rizki Ikramullah, Firza Ilhamda, Risky Imanda, Riska Indra Mawardi Isra, Muhammad Jumadi, J M Sayuti M. Ali Fikri Mardian, Rikki Masrullita, Masrullita Muhammad Muhammad Gazza Muhammad Habibi Muhammad Ihsan Muhammad Muhammad Muhammad Muhammad Muhammad Muhammad Muhammad Yusuf Muhammad, M Munawir Sazali Murdani Murdani, Murdani Nurul Islami, Nurul Radian, Hagi Rianda, Faizar Riskan, Ardi Riza Wirawan, Riza Sakura, Royanna Sayuti, Muhammad Setiawaty, Sri Silalahi, M.Pd, Drs. Juniman Simanjuntak, Ochitria Cintia Br Sofyan Sofyan Suryadi Suryadi Suryadi Syahputra, Rio Mandala Syamsiar, Syamsiar Tri Waluyo Utaminingrum, Fitri Wahyuni, Rita Yusuf, Jafaruddin Zahrani, Amilia Zulkarnaen, Amay Velda Zulmiardi, Zulmiardi Zulnazri, Z