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Analysis of Determinants of Carbon Fiber Strength: A Review Salafuddin, Hafidz; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 1 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i1.105

Abstract

In globalization and material advancement, carbon fiber has become a strategic solution in addressing sustainability challenges, especially in the automotive and aeronautical sectors, thanks to its superior lightweight and strength properties. This research aims to assess the various factors that influence the strength of carbon fibers and their potential integration in composites. The approach chosen is a literature review, which collects and synthesizes the results of recent studies to develop a thorough understanding of the strength and applications of carbon fibers. The findings of this study show significant improvements in tensile strength and weight reduction through the modification of carbon fiber with materials such as dopamine and its integration in aluminum matrix composites. Carbon fiber promises to be an important advance in developing composite materials that not only support sustainability but also adapt to the technical needs of contemporary industries. These results urge further research on efficient production methods to maximize the use of carbon fiber in wider applications.
A Review of Die Casting Methods in Manufacturing Processes Sikumbang, Rama Widjaya; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 1 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i1.106

Abstract

This review explores seven die casting methods: High-Pressure Die Casting (HPDC), Low-Pressure Die Casting (LPDC), Vacuum Die Casting (VDC), Gravity Die Casting (GDC), Squeeze Casting, Semisolid Metal Casting (Thixomolding), and Cold Chamber Die Casting. Each method is evaluated based on its advantages, limitations, and industrial applications. HPDC is widely used for high-volume production but faces challenges like porosity and mold wear. LPDC offers better material density with slower production rates. VDC produces high-quality components with minimal defects but is more costly. GDC is suitable for simple geometries and smaller volumes, while Squeeze Casting delivers high strength and density, ideal for automotive parts. Thixomolding offers precise material flow, producing lightweight, strong components. Cold Chamber Die Casting is effective for high-melting metals but requires careful heat control. The review also discusses advancements in materials, mold designs, and simulation technologies, which enhance the efficiency and sustainability of die casting processes. Despite existing challenges, die casting remains a critical method for high-precision, large-scale manufacturing. Choosing the right method depends on product specifications and industry needs.
Economizer Manufacturing Process Optimization in Boiler Efficiency Improvement: A Literature Review Faizal, Faizal; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 1 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i1.107

Abstract

Boilers are one of the important components in the industrial sector, with their thermal efficiency largely dependent on the ability to utilize the heat energy produced. Economizer is the main device used to improve boiler efficiency by utilizing residual heat from flue gases to heat feed water, thereby reducing fuel consumption and greenhouse gas emissions. This research aims to review the literature related to optimizing the economizer manufacturing process, including material selection, design, and production technology, in order to improve boiler thermal efficiency. The review shows that materials such as stainless steel and copper have a great contribution in improving thermal conductivity and corrosion resistance. In addition, new material innovations, such as ceramic and polymer composites, offer significant potential for improving economizer performance. On the other hand, manufacturing processes such as high-precision welding and strict quality control prove instrumental in ensuring the structural integrity of the economizer. By optimizing manufacturing processes, boiler efficiency can increase by up to 15%, while supporting sustainability by reducing greenhouse gas emissions. This research confirms that further development in economizer design, materials and manufacturing technologies is necessary to meet the needs of a sustainable industry. Thus, economizer is not only a solution for energy efficiency but also a strategic step in supporting a more environmentally friendly energy system.
Review Additive Manufacturing Methods for Thermal Energy Storage Sukendar, Sukendar; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 1 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i1.114

Abstract

The field of energy storage is undergoing significant transformation through the integration of additive manufacturing (AM). However, current challenges persist in addressing the optimization of material properties, precision, and manufacturing constraints in thermal energy storage (TES) systems. The aim of this study is to review the advancements in AM techniques as applied to TES systems, focusing on their ability to enhance thermal efficiency, reduce material wastage, and improve economic viability. The methodology employed is a systematic literature review (SLR), consolidating findings from previous studies to identify the effectiveness of AM in fabricating TES components. Key findings highlight that AM enables the creation of complex structures, such as lattices and composite phase change materials (PCMs), that improve heat transfer, thermal conductivity, and system stability. For instance, optimized fin designs produced via AM have reduced conduction resistance by up to 17 times. Additionally, integrating lattice frameworks and porous matrices has enhanced energy storage capabilities by improving temperature uniformity and reducing phase change material melting times. AM demonstrates transformative potential in TES by enabling innovative designs and efficient material usage. However, further research is required to address scalability, cost-effectiveness, and high-resolution manufacturing to fully realize its application in industrial energy storage systems.
A Review on CNC Milling Parameter Optimization Using Taguchi and Response Surface Methodology (RSM) Lase, Asaeli Tongoni; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 1 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i1.108

Abstract

CNC milling technology is essential to today's industrial sector because it makes it possible to produce components precisely and efficiently. In this study, CNC milling machining parameters are optimized using the Taguchi technique and Response Surface Methodology (RSM). We also analyze several other characteristics such as Spindle Speed (SS), Feed Rate (FR), and Depth of Cut (DoC). To determine important factors and ideal configurations, this study blends statistical analysis, such as ANOVA, with experimental methods. According to the study's findings, the two most important variables affecting surface roughness (Ra) and Material Removal Rate (MRR) are FR and DoC. The optimization approach can help improve product quality while cutting down on production time. This in turn promotes the manufacturing process's efficiency.
Review Manufacturing Process of Aluminium Scrap Casting Hasanudin, Abdul; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 1 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i1.115

Abstract

This research examines various approaches in improving the quality and efficiency of the aluminium recycling process, focusing on the effect of waste type, casting method, and process parameters on the mechanical properties of the resulting product. Several studies have shown that the type of aluminium waste, such as pistons and cans, affects the hardness of the final product, while non-conventional cooling media such as coconut milk water can produce a more homogeneous microstructure. In addition, casting methods such as centrifugal casting are superior to sand casting in producing tighter microstructure and better mechanical quality. The addition of elemental tin (Sn) to recycled aluminium has also been shown to improve hardness and wear resistance, making it more suitable for severe applications. Controlling the casting temperature and controlling porosity are also important factors in obtaining products with optimum mechanical strength. While these results are promising, further research is needed to optimise cost efficiency, environmental impact and sustainability in the aluminium recycling process.
Analysis of Factors Influencing Tensile Strength in Shielded Metal Arc Welding (SMAW) Ginting, Canda Lesmana; Pranoto, Hadi
International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Vol 6, No 1 (2025)
Publisher : Institute for Research on Innovation and Industrial System (IRIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37869/ijatec.v6i1.113

Abstract

Tensile strength in Shielded Metal Arc Welding (SMAW) is a critical parameter that significantly impacts the material's performance in mechanical structures. This welding method is widely used in various industrial applications, especially for carbon steel materials, due to its practicality and relatively low operational costs. This study aims to analyze the factors affecting tensile strength in SMAW welding, including welding current, electrode type and size, welding position, cooling medium, and welder skill. The analysis results show that increasing welding current can improve penetration and tensile strength, although it carries the risk of defects such as porosity and reduced weld quality. Selecting the right electrode, such as E7016, provides better tensile strength results compared to E7018, which excels in crack resistance. The horizontal welding position produces more consistent weld quality, while overhead position increases the risk of defects. Additionally, the cooling medium plays a significant role, with slow cooling using air or sand leading to a microstructure that supports better tensile strength compared to rapid cooling with water. Welder skill is also an important factor in controlling welding parameters to achieve optimal and strong welding results.
THE EFFECT OF MONEY AVAILABILITY, TIME AVAILABILITY AND PROMOTION OF IMPULSE PURCHASE BEHAVIOR OF CHOCOLATE SNACK PRODUCTS THROUGH POSITIVE EMOTIONS Pranoto, Hadi; Andarwati, Andarwati; Sunaryo, Sunaryo
Jurnal Aplikasi Manajemen Vol. 19 No. 4 (2021)
Publisher : Universitas Brawijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jam.2021.019.04.03

Abstract

This study examines and analyzes the influence of money available, time availability, and the promotion of impulse purchases through positive emotions as a mediating variable on chocolate snack products. This research is quantitative research conducted in Hypermart Malang Town Square (Matos), Giant Hypermarket Malang Olympic Garden (MOG), Giant Ekstra Sawojajar, and Giant Ekstra Kebonagung. The population studied were consumers who bought chocolate snack products on impulse purchases. The sample used 190 respondents. Data collection techniques using questionnaires, interviews, and literature review. Data analysis techniques in this research use validity test, reliable test, linear test, diagram test, PLS, and hypothesis test on the variable of money availability, time availability, promotion, impulse purchase, and positive emotion on chocolate snack product. This study indicates that the variable availability of money can impact positive emotional variables. The varying availability of money cannot impact impulse buying variables. The time availability variable does not affect the positive emotional variables. Meanwhile, the time availability variable impacts the impulse buying variable. Furthermore, promotional variables affect positive emotional variables as well as impulse buying variables. However, the positive emotional variable has no impact on the impulse buying variable. The positive emotional variable proved the relationship between money and promotional variables' variable availability in the mediation test. In contrast, the variable availability of time is not a provable positive emotional variable as a liaison influence the variable of time availability with impulse buying.
PENERAPAN DUKUNGAN SISTEM BIMBINGAN DAN KONSELING Lestari, Aprilia; Pranoto, Hadi; Muzni, Achmad Irfan; Anjar, Tri
Counseling Milenial (CM) Vol. 6 No. 2 (2025): JUNE
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/konselor.v6i2.9338

Abstract

The purpose of this study was to determine the support system in the aspects of consultation services and aspects of guidance and counseling program management at SMP Negeri 1 Metro. This research uses descriptive qualitative methods by collecting data, reducing data, presenting data, and drawing conclusions. The instruments used in data collection used 3 types of instruments, namely interview guidelines, observation guidelines, and documentation. The results of this study resulted in the conclusion that the implementation of system support in the implementation of counseling at SMP Negeri 1 Metro in the aspect of consultation services has been carried out by the coordinator and counseling teachers with various parties including school officials, subject teachers, homeroom teachers, parents of students and the surrounding community to support the program and counseling also participates in the planning and implementation of school activities such as the procurement of health tests, psychological tests, and other school activities. The implementation of system support in the implementation of counseling at SMP Negeri 1 Metro in the aspect of counseling program management activities has carried out program development in accordance with the changes in the curriculum from K13 to the independent curriculum and counseling teachers continue to develop their counselor professionalism by actively participating in organizations and attending seminars.
Pengaruh Layanan Bimbingan Kelompok dengan Teknik Diskusi Kelompok terhadap Social Loafing Wulandari, Adelia; Wibowo, Agus; Pranoto, Hadi
Counseling Milenial (CM) Vol. 6 No. 2 (2025): JUNE
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/konselor.v6i2.9341

Abstract

This study intends to ascertain how group guidance services and group discussion technique at SMP Negeri 1 Kotagajah affect social loafing. This study used a single group pre-test/post-test experimental quantitative research methodology. The sample for this study consisted of 7 eighth-grade students from SMP Negeri 1 Kotagajah. A social loafing questionnaire is used as the data gathering method. The findings of the study have an impact on students both before and after the introduction of group assistance services using discussion approaches. Average pre-test scores were 68.86, while post-test scores were 103.57. The average post-test score is greater than the pre-test score on average, demonstrating the impact of group guidance services and group discussion approaches on students' social loafing. The t test calculation findings, which indicate tcount> ttable (6.078> 1.94318) with a significant level of 0.05, support this. Based on the findings of the t test analysis, it is possible to draw the conclusion that H0 is rejected and H1 is accepted. This suggests that group guidance services combined with group discussion approaches have an impact on social loafing at SMP Negeri 1 Kotagajah in the academic year 2022/2023.
Co-Authors . Sudarmaji, . Abdi Wahab Abdul Saman Achmad Irfan Muzni Adelia Wulandari Afdal Hanif Pamungkas Afriana, Rafika Agus Wibowo Agus Wibowo Ahimsa, Titos Andarwati Andarwati Andi Adriansyah Andi Firdaus Sudarma Aprianto, Edo Ardiansyah Japlani, Ardiansyah Arifin, Muhammad Alfattah Armaichi, Ella Aryani, Rita Ayu Arwati, I G. Ayu Pratiwi, Ayu Ayuningtyas, Bekti Bahar Bahar, Bahar Bambang Supriyanto Basyari, Aziz Buana Paxi Dafit Feriyanto Dea Putri Devita Putri Noviasari Dhofirul Fadhil Dzil Ikrom Al Hazmi Dhonanto, Donny Dian Komala Dewi Dzulfina Almukaromah Eliyani Eliyani Enok Mardiah Ervina Gesti Anggraini Eva Faliyanti Faizal Faizal, Faizal Fajarwati, Retno Felicia Inggit Aspurua Fikri Haikal Firmansyah, Mohamad Ardy Fitri , Muhammad Ginting, Canda Lesmana Ginting, Dianta Gumilang, Donnie Hariandi, Yusuf Hasan Basri Hasanudin, Abdul Heri Cahyono Hidayat, Arief Rachmad Himma Firdaus I Made Adianta Idris, Suria Darma Indradewa, Rhian Ira Vahlia Irma Yuni istiqomah istiqomah Juhri AM Kamandanu, Ikhsan Karwono Karwono Karwono, Karwono Ketut Tara Agustin Khasanah, Al Um Aniswatun Komang Nitasari Laras Anggraini Lase, Asaeli Tongoni Lestari, Aprilia Luthfi Chusna Yeni Marliza Muchtar Marzuki Noor, Marzuki Maulana, Herlan Merie Handayani MUDAIM MUDAIM, MUDAIM Muhamad Fitri Muhamad Saidun JN Muhammad Anas Muhammad Arifin Ahmad Muhammad Ilham Bakhtiar Muhammad Saleh Mukaromah, Siti Tri Nafis, Muhammad Luthfi Nanang Ruhyat Norenza, Jessica Novi Pristiningsih Novi Rahmawati Noviyanto, Alvian Nugroho, Akhamad Andriyan Nurahman, Arip Nurato , Nurato Nurato Nurato, Nurato Nurul Atieka Pangestu, Aulia Pani, Pani Pratiwi Kartika Putri Pujowati, Penny Puyo, Christyan Bangkit Pong Rahayu, Reni Rahmadhini, Ega Ayu Ramayana, Abdul Syamad Ramayana, Syamad Refty Aulia Restiana Rido Ardiansyah Rio Septora Riski Yuli Kurniawati Rolia, Eva Romahadi, Dedik Rosid, Andiana Rusmin Nuryadin Sagir Alva Salafuddin, Hafidz Sari, Alvita Sari, Anis Widya Satrio Budi Wibowo Sholiha, Sangidatus Sholikhatun Khurniasih Sikumbang, Rama Widjaya Siti Nafiah Sofian, Sofian Sunaryo Sunaryo Surya Darma Susylowati, Susylowati Sutriati, Ani Taufan Purwokusumaning Daru, Taufan Purwokusumaning Taufik Akbar Tika Nur Utami Tri Anjar, Tri Turnip, Guido Narodo U, Akhmad Zamroni Umarwan, Arie Utomo, Wahyu Tri Wahyudi, Ikhsan Wardoyo Wardoyo Wijaya, Yahya Rana Wilbent Daffa, Kelvin Youlia, Rikko Putra Yuli Diniawati Zakaria, Supaat Zakaria, Supaat