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Jurnal Teknik Mesin Mechanical Xplore
Published by Universitas Buana Perjuangan Karawang
ISSN : 27460045     EISSN : 27463672     DOI : https://doi.org/10.36805/jtmmx.v2i2
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Mechanical Xplore journal is published by the Mechanical Engineering Department, Faculty of Engineering, Universitas Buana Perjuangan Karawang, Karawang-West Java-Indonesia. Mechanical Xplore journal is an open-access, peer-reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in mechanical engineering. Mechanical Xplore journal accepts submissions from all over the world, especially from Indonesia. Mechanical Xplore publishes research journals, methodologies, and case studies on mechanical engineering in general. Scientific articles in this journal contain data and information advancing science in general and fundamental research. The scope of the paper included Manufacturing Engineering, Manufacturing Systems, Automation Engineering, Advance Material, Industrial Engineering, Energy Conversion, and Mechanical Design.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 80 Documents
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Parametric Analysis and Optimization of Sinker-EDM Process for High Tensile Strength Steel Using Response Surface Methodology Rohman; Sukarman, Sukarman; Khoirudin, Khoirudin; Taufik Ulhakim, Muhamad; Mulyadi, Dodi; Amir, Amir; Abdulah, Amri
Jurnal Teknik Mesin Mechanical Xplore Vol 5 No 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i2.9017

Abstract

This investigation focuses on optimizing the sinker electrical discharge machining (sinker-EDM) process parameters for high tensile strength steel (HTSS), specifically SKD-11, utilizing Box-Behnken Response Surface Methodology (BB-RSM). Sinker-EDM is a commonly used technique in manufacturing moulds, dies, and components for sectors like automotive and aerospace. This process eliminates direct contact between the electrode and the workpiece. However, its low material removal rate (MRR) constrains productivity. This research endeavours to enhance MRR by employing rectangular graphite electrodes. The Box-Behnken Response Surface Methodology (BB-RSM) was utilized to evaluate the effects of pulse current, spark-on time, and gap voltage on MRR. The optimal MRR of 45.49 mm³/min was attained at a pulse current of 16 A, spark-on time of 400 µs, and gap voltage of 45 V. ANOVA revealed that pulse current and spark-on time significantly influenced MRR. In contrast, gap voltage had an insignificant impact. Interaction and surface plot analyses confirmed that high pulse current and extended spark-on time resulted in the maximum MRR. These findings provide valuable insights for optimizing the sinker-EDM process for SHTSS, contributing to enhanced productivity and efficiency in manufacturing.
Taguchi-Based Optimization of TIG Welding for Joining Low-Carbon Steel (ST37) and Stainless Steel (SUS 304) Khoirudin; Karyadi, Karyadi; Kusnadi, Akhmad; Amir, Amir; Abdulah, Amri; Hananto, Agus; Taufik Ulhakim, Muhamad
Jurnal Teknik Mesin Mechanical Xplore Vol 5 No 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i2.9043

Abstract

This study investigates the optimization of tungsten inert gas (TIG) welding parameters for joining dissimilar metals, specifically ST37 low-carbon steel and SUS 304 stainless steel, using the Taguchi L9 experimental design. The welding parameters evaluated include welding current (45-65 A), tungsten electrode diameter (1.6-2.4 mm), and shielding gas flow rate (12-18 LPM). The aim is to enhance joint integrity and mechanical properties by systematically analyzing the influence of these parameters on hardness and tensile load (TS loads). Hardness testing revealed that the weld zone exhibited the highest hardness, followed by the heat-affected zone and base metal. Tensile testing showed that the highest TS loads of 341 kgf were achieved at 45 A, 1.6 mm electrode diameter, and 12 LPM gas flow rate. Signal-to-noise ratio analysis and analysis of variance (ANOVA) indicated that welding current had the most significant influence on hardness and TS loads, with contributions of 39% and 41.27%, respectively, followed by electrode diameter (17% and 36.42%). In comparison, the gas flow rate had the least impact (45% and 22.31%). However, ANOVA results showed that none of the factors exhibited statistical significance (P > 0.05). The findings contribute to the field of welding engineering by providing optimized TIG welding parameters for ST37-SUS 304 joints, enhancing their reliability in various industrial applications such as automotive manufacturing, oil and gas, and power generation, where durable and corrosion-resistant welds are crucial.
Techno-Economic Analysis of On-Grid Solar Power Plants for Tulungagung Hydropower Operational Cost Savings Based on Production and Load Data Syaifuddin; Prasetyo, Singgih Dwi; Kusumawardana, Arya; Rizal, Royb Fatkhur; Munir, Misbahul; Sukarman, Sukarman; Prasetyo, Roni
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10081

Abstract

The increasing energy demand and environmental challenges have accelerated the global shift toward renewable energy, with Indonesia possessing a substantial solar potential of 3,294 GW. This study investigates the techno-economic feasibility of a 40.9 kWp On-Grid Solar Power Plant  as a supplementary energy source to reduce operational costs at the Tulungagung Hydropower Plant. A techno-economic analysis was conducted using 2024 solar PV production data from the ShinePhone application and the Tulungagung Hydropower business daily report, complemented by simulations from the Hybrid Optimization Model for Multiple Energy Resources (HOMER) to identify optimal system configurations. The actual solar power plant generated 52,499.9 kWh/year, contributing 15.66% of the plant's operational load of 335,150.71 kWh and resulting in annual cost savings of IDR 58,523,260, based on a PLN tariff of IDR 1,114.74/kWh. In comparison, HOMER simulations projected a higher generation of 74,265 kWh/year, with a net present cost (NPC) of IDR 6,461,879,000 and a cost of energy (COE) of IDR 1,142.36. While the PLTS has proven technically and economically viable as a complementary energy source, its current capacity remains insufficient to fully meet the hydropower plant's operational load, indicating the need for further system optimization and potential integration of energy storage solutions.
Optimizing Spring-back and Spring-go in Vee-bending of SCGA340BHX Galvanized Steel: A Taguchi Approach Susilo, Hendri; Supriyanto, Danang; Nur Widyartha, Yogi; Khoirudin, Khoirudin; Sukarman, Sukarman; Hakim, Afif; Cepi Budiansyah, Ade; Suhara, Ade; Rahdiana, Nana; Hananto, Agus
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10147

Abstract

Spring-back and spring-go are critical elastic recovery phenomena in sheet metal forming that affect the angular precision of bent components. This study investigates the influence of punch angle, die opening, and punch speed on these behaviors during the Vee-bending process of SCGA340BHX high-strength galvanized steel. A Taguchi design of experiments with an L8 orthogonal array was applied, and spring-back angles were measured and analyzed using the “smaller-is-better” signal-to-noise (S/N) ratio criterion. The results reveal that punch angle is the most influential parameter governing spring-back and spring-go tendencies, followed by die opening and punch speed. A punch angle of 50° and a die opening of 35 mm produced the highest average spring-back (3.03°), while spring-go behavior was observed primarily at higher punch speeds (35–40 mm/min). The study further confirmed the inverse relationship between bending force and spring-back, with lower forming forces correlating to greater elastic recovery. These findings provide a comprehensive understanding of the interdependence between geometric and kinematic factors in elastic recovery phenomena, offering quantitative insights for optimizing Vee-bending operations involving thin, high-strength steel.
Analysis of the Influence of Transmission Systems and Vehicle Weight on the Range Capability of the Mandalika Desantara Prototype Vehicle Bima, Rangga Bima; Bima, Rangga; Mara, I Made; Okariawan, I Dewa Ketut
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10276

Abstract

The development of electric vehicles (EVs) plays a vital role in reducing carbon emissions and decreasing dependence on fossil fuels. This study examines the range efficiency of the Mandalika Desantara electric prototype by investigating the impact of vehicle weight and transmission configuration on energy consumption. Experimental tests were conducted using three different vehicle weights (120.5, 130.5, and 140.5 kg) and multiple transmission ratios. The results indicate a positive correlation between vehicle weight, energy usage, and travel performance. The lowest energy consumption was recorded at 21.33 Wh for the 120.5 kg configuration, achieved at an average speed of 14.42 km/h. The highest was 46 Wh for the 140.5 kg configuration, attained at 20.00 km/h. Motor power output ranged from 113.01 W to 177.22 W, with a range efficiency varying between 0.052 km/W and 0.113 km/W. Travel times ranged from 548 seconds at a transmission ratio of 6.43 to 822 seconds at a ratio of 10.29. These findings underscore the importance of optimized weight management and transmission selection in enhancing EV performance, thereby contributing to the development of more energy-efficient and sustainable electric mobility solutions.
Technical Evaluation of Elevator Performance and Capacity Planning in High-Rise Apartment Towers: A Case Study in Jakarta Kamandanu, Ikhsan; Ruhyat, Nanang
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10413

Abstract

Elevator systems are critical for ensuring efficient vertical mobility, safety, and occupant comfort in high-rise residential buildings. This study presents a comprehensive performance evaluation of the elevator system in a three-tower apartment complex in Jakarta, Indonesia. The analysis integrates both qualitative and quantitative methods to assess key performance indicators, including peak load demand, round-trip time, handling capacity, recommended number of elevator units, waiting time, and estimated daily energy consumption. The peak load during the initial five-minute interval was found to range from 23 to 48 persons per tower. Elevator speeds were set at 180 m/min for Tower 1 and 150 m/min for Towers 2 and 3, resulting in round-trip time values between 183 and 208 seconds. The estimated handling capacities varied from 54 to 69 persons per elevator. To ensure optimal service performance and redundancy, four elevator units are recommended for Tower 1, and three units each for Towers 2 and 3. The projected daily energy consumption, based on a five-hour operational window, ranges from 80.51 to 96.61 kWh. The findings offer practical insights for designing energy-efficient and service-optimized elevator systems in high-density urban residential developments.
Fabrication and Structural Integrity Analysis of a Jenang Mixer Machine: A Solution for Modernizing Traditional Indonesian Food Production Prasetyo, Singgih; Kusumawardana, Arya; Fathur Rizal, Royb; Munir, Misbahul; Sukarman, Sukarman; Karhoma Wijaya, Ababil; Trisnoaji, Yuki
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10414

Abstract

The design and fabrication of the Jenang mixer machine are carried out to enhance the efficiency of household industrial-scale Jenang production. The machine is designed using an engineering approach based on numerical analysis and the Design for Manufacture and Assembly (DFMA) method. The drive power calculation shows a minimum requirement of 2072.7 Watts; therefore, a 3 HP electric motor equipped with a gearbox is used to produce significant torque at low revs. Analysis of the frame strength using static simulations in Fusion 360 software revealed that the machine structure had a safety factor of 15 and a maximum displacement of only 0.006 mm, indicating a robust and stable structure. The fabrication results indicate that the machine comprises 12 principal components and operates reliably in evenly stirring the Jenang dough, making it suitable for small to medium-scale production.
Performance Evaluation of Rice Husk-Based Catalytic Converters: Emission Reduction and Minimal Engine Power Loss Verified by Dynamometer Test Imam Mandriyanto; Amir; Sukarman; Muchammad Chusnan Aprianto; Agus Supriyanto; Rizki Aulia Nanda; Teknik Mesin
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10415

Abstract

Catalytic converters (CCs) play a critical role in reducing exhaust emissions in motor vehicles. This study presents a sustainable solution by utilizing rice husk waste (RHW) to produce activated carbon, which is then fabricated into honeycomb-shaped catalytic converters with thickness variations of 10 mm, 15 mm, 20 mm, and 25 mm. Among these, the 15 mm-thick converter (CC15) exhibited the most effective emission reduction performance, achieving reductions of 78.33% in hydrocarbons (HC) and 48.23% in carbon monoxide (CO). To assess its impact on engine performance, a series of dynamometer tests were conducted, showing that the installation of CC15 led to less than a 6% decrease in both power and torque, which is considered acceptable for daily vehicle use. Furthermore, the air–fuel ratio (AFR) shifted from an average of 13.38 under standard conditions to 14.19 with CC15, indicating stable combustion. Acoustic evaluation also confirmed that the CC did not function as a noise suppressor, resulting in no significant alteration to engine acoustics. Overall, the CC15 demonstrates an effective balance between environmental performance and engine efficiency, offering a practical emission control solution based on locally sourced agricultural waste.
English: English Raldi, LD Muhammad; Damayanti, Setia; Ridwan, Ridwan
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10448

Abstract

Sustainable waste management and environmentally friendly production systems have become central to modern supply chain practices. Refuse-derived fuel, an alternative fuel derived from solid waste, presents significant potential in supporting green supply chain management principles. However, its integration into the green supply chain management framework remains fragmented. This study aims to explore the integration of refuse-derived fuel into sustainable supply chain management using an integrative literature review method. Findings indicate that refuse-derived fuel contributes not only to reducing landfill volume and emissions but also enhances energy efficiency, particularly in the cement manufacturing industry. Key challenges include feedstock quality, technological complexity, and limited policy support. This study proposes a conceptual model positioning refuse-derived fuel as a strategic driver for green production. Through a multidisciplinary understanding of refuse-derived fuel, waste management, and supply chain innovation, refuse-derived fuel emerges as a promising component for systematic integration into sustainable production and circular economy strategies. Future research is recommended to validate this conceptual model empirically and to explore practical implementation pathways in various industrial sectors.
Analisis Pengaruh Perilaku Pengemuditerhadap Efisiensi Energi pada Kendaraan Listrik Prototipe Benoit, Fransiskus Yusdwi Benoit Toding; Mara, I Made; Okariawan, I Dewa Ketut
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10452

Abstract

The development of electric vehicles as a sustainable transportation alternative is rapidly advancing, driven by the need to reduce exhaust emissions and fossil fuel consumption. The efficiency of electric vehicles is not only determined by technical components such as electric motors, batteries, and control systems, but also by the driver's behavior during operation. This study aims to analyze the influence of driver behavior on energy efficiency in a prototype electric vehicle. The test was conducted within the campus environment of Universitas Mataram on a track with various conditions, including flat roads, curves, slight inclines, and speed bumps. Three drivers participated in the experiment, each completing three driving sessions with full freedom to drive without limitations set by the researcher. The results of the study show that driving behavior has a significant impact on energy consumption. Drivers with high speeds and aggressive acceleration tend to consume more energy. In contrast, drivers who adopted efficient driving techniques were able to save energy significantly. These findings confirm that driver behavior is an important factor in the design and development of energy-efficient electric vehicles.

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