JMPM (Jurnal Material dan Proses Manufaktur)
Jurnal Material DAN Proses Manufaktur focuses on the research and research review in the field of engineering material and manufacturing processes. The journal covers various themes namely Design Engineering, Process Optimization, Process Problem Solving, Manufacturing Methods, Process Automation, Material research and investigation, Advanced Materials, Nanomaterials, Mechanical solid and fluid, Energy Harvesting and Renewable Energy.
Articles
9 Documents
Search results for
, issue
"Vol. 8 No. 1 (2024): June"
:
9 Documents
clear
<![CDATA[Static and Dynamic Analyses of Spindle Collet Made of Different Materials Using Finite Element Modeling ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.20467
<![CDATA[The spindle collet, a critical component in various machine tools, plays a pivotal role in determining the success of machining operations. This paper aims to study the static and dynamic parameters of collet structures made from three different materials using the finite element method. A three-dimensional model and computer simulation were conducted in Autodesk Inventor software. Simulations are performed using identical boundary conditions and mesh size. Static analysis is performed with varied applied forces where total deformation and Von Mises stress are measured. For the dynamic analysis, the natural frequencies and mode shapes are measured up to the first five modes. The variations in stress is minimal when the material is altered. The magnitude of deformation varies significantly with changes in material. The relative deformation values demonstrate that carbon steel deforms more than alloy steel by almost 3%, while stainless steel deforms more than alloy steel by 6%. Materials with higher Young's modulus and lower density have been found to increase the natural frequencies, reducing total deformation and von Misses stress. The use of alloy steel in the industry offers an advantage over the other two materials. The results provide improved insight into the appropriate materials for the collet.]]>
<![CDATA[Semiconductor Based on Oil Palm Empty Fruit Bunch Alkali Cellulose ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.20521
<![CDATA[Oil palm empty fruit bunch (OPEFB) is a readily available biomass resource in Indonesia. Its processing into alpha-cellulose and alkaline cellulose offers promising economic opportunities and sustainable sensor development. This study focuses on extracting alpha-cellulose from OPEFB using kraft hydrolysis method and converting it into alkaline cellulose using NaOH solution. The 15, 20, and 25% variation of NaOH percentage during pulping resulting in different pulp quality indicated by alpha-cellulose content. The resulting alkali cellulose exhibits semiconductor properties with an energy gap of 3.6 eV, demonstrating its potential for light sensor or photodiode applications. Additionally, the optical energy gap of alkali cellulose-polyvinyl alcohol composites is investigated.]]>
<![CDATA[Multi Aspect Optimization of Milling Machines : Review ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.21088
<![CDATA[Modern manufacturing supports various aspects of modern life. Modern manufacturing right now is focused on the application of artificial intelligence, acceleration of production, automation production, sustainability and environmental protection. A milling machine is a tool supports in a series of production processes. Its existence supports the production process which is part of the modern manufacturing system. In operating milling machines, several problems that occur, starting from operations, machine capacity, and predictions of machine or tool usage. This study summarizes and reviews previous studies in order to collecting types of milling machine optimization. Multi-aspect optimization obtained includes: optimization with a tool life prediction approach, optimization with a milling process approach, optimization with modification or retrofit, optimization with a production yield approach and finally optimization with operational time. With the results obtained, it is hoped that it can contribute to the optimization of milling machines in the modern manufacturing world. It is hoped that future research will be able to carry out in-depth analysis of each aspect of milling machine optimization has been mentioned.]]>
<![CDATA[Impact of Mass Flow Rate on Thermal Behavior of PCM-Based SWH during Charging Operations ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.21848
<![CDATA[Using phase change materials in solar water heaters presents an intriguing prospect due to their notable energy density and potential for substantial thermal energy storage capacity. In the context of active-type solar water heaters, careful consideration must be given to the water flow rate as a crucial parameter. This paper investigates the thermal dynamics of active-type solar water heaters equipped with phase change materials, examining variations in mass flow rate during the charging process. Indoor experiments utilized horizontal tanks, flat plate collectors, pumps, and solar simulators. Cylindrical capsules filled with paraffin wax were employed and arranged horizontally within the tank, while K-type thermocouples were utilized to monitor water and paraffin wax temperatures. Charging procedures were executed over 160 minutes with mass flow rate adjustments. Data analysis was performed to evaluate the system's thermal performance during charging. Results indicate higher mass flow rates correspond to increased instantaneous, cumulative heat storage, and charging efficiency. The mass flow rate notably affects the thermal efficiency of solar water heater systems incorporating phase change materials.]]>
<![CDATA[Modification Of Impact Testing Tools For Research Of Aluminum Alloys Energy Absorption Profile ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.21883
<![CDATA[One of the most popular materials used in industry is aluminum and its alloys. The aluminum manufacturing process is likely to undergo a welding process. Aluminum can be welded by gas or arc welding, but arc welding is more satisfactory. The welding process on aluminum alloys has the potential to present a situation similar to Age hardening. This research was conducted to dig deeper into the impact of welding on the second phase strengthening mechanism in several series of aluminum alloys using impact test equipment with the addition of a modified digital instrumentation device. Modifications were made to the GOTECH impact test equipment model Charpy impact test 0027 by changing the pendulum and adding a plate to the holder to conform to the ASTM E23-02a standard and adding digital instrumentation tools, including load cells, amplifiers, data acquisition, and power supply. The specimens used were aluminum 5052 and 6061 with variations of base metal and TIG welded V 60°. The results of the modified impact test equipment can display a graph of the impact energy absorption of each specimen. Comparison between the manual calculation of absorbed impact energy and digital calculation of 5052 base metal aluminum specimens has an average deviation of 11,716 J, 5052 welded specimens have an average deviation of 1.341 J, 6061 base metal specimens have an average deviation of 0.729 J, and 6061 welded specimens has a mean of 0.845 J.]]>
<![CDATA[The Effect of Adding a Square Disturbance on the Flow Characteristics across Circular Cylinders Arranged in Tandem ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.21898
<![CDATA[Circular cylinder is one form of bluff body that is often used in engineering and industrial applications. The addition of a square placed in front of the circular cylinder aims to accelerate the flow from laminar to turbulent so that flow separation can be delayed more slowly so that the resulting pressure drag is smaller. The research method used was experimental using two circular cylinders arranged in tandem with a diameter (D) of 25 mm and variations in the distance between cylinders (L/D) 2;2,5;3;3,5;4 and two square-shaped square bodies (SDB) in front of each cylinder with dimensions of 4 mm. Position of SDB angle is 30o and the gap distance is 0.4 mm. The Reynolds number used is 2.3x104. This study aims to obtain the distribution of pressure coefficient (CP), drag pressure coefficient (CDP) and velocity profile behind the test specimen. The results showed that the addition of two square-shaped square bodies on each cylinder can reduce the drag force on the cylinder which causes a difference in values, where the largest pressure coefficient value occurs at a distance of L/D 4 with a value of -1.073 and the lowest value of drag pressure coefficient (CDP) at a distance of L/D 2 on the upstream cylinder with a value of 0.0786. While the downstream cylinder is located at a distance of L/D 3 with a value of -0.079 and the lowest speed value is located in the variation of L/D 4 with a value of 9.52 m/s.]]>
<![CDATA[Technology Updates on Plate Bending Machines with Hydraulic Systems ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.22250
<![CDATA[The swift progression of industrial technology has profoundly influenced the manufacturing sector, especially in the domain of sheet metal manipulation. Hydraulic plate bending machines hold a pivotal role in contemporary production due to their precision in shaping sheet metal components. This study aims to elevate the versatility and efficiency of hydraulic plate bending machines through innovative modifications. Key components underwent substantial alterations, including punch substitution, installation of dual punch locking plates, and integration of a pressure gauge. An evaluation ensued to determine the optimal parameters duration and force requisite for bending sheet metals ranging from 1 mm to 4 mm in thickness, aimed at assessing machinery efficacy. Test outcomes unveiled the modified machine's adeptness in accurately bending sheets of varying thicknesses, affirming its intended functionality. Moreover, the machine's enhanced adaptability allowed for seamless interchangeability of punches with diverse sizes and shapes. These empirical findings provide invaluable insights for enterprises striving to streamline manufacturing processes and boost overall productivity. Notably, this study highlights the pivotal role of technological advances in hydraulic plate bending machines, offering firms an efficient avenue to cater to diverse sheet metal shaping demands, thereby amplifying productivity and adaptability in industrial operations.]]>
<![CDATA[Performance of Motorcycle Fueled with Pertalite‒LDPE Pyrolytic Oil Blendings ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.22274
<![CDATA[Plastic use has expanded substantially, and its waste is primarily disposed of in landfills, which further harm ecosystems owing to inadequate waste management. Pyrolysis, which converts plastic waste into liquid fuel, is one of the potential chemical recycling alternatives for plastic. The purpose of this study is to determine the viability of using pyrolytic oil from an LDPE grocery bag as an alternative fuel for a four-stroke spark ignition motorcycle engine. The LDPE grocery bag was pyrolyzed at 500 oC at a heating rate of 3 oC/min, and the condensed pyrolytic vapor's characteristics were determined. Torque, power, and fuel consumption were investigated using a four-stroke spark ignition motorbike powered by pertalite‒LDPE pyrolytic oil blends. The results reveal that the properties of LDPE pyrolytic oil and pertalite were considerably different; hence, when the blending fuel was applied to the motorcycle, the engine torque and power decreased at low engine speed (2000‒3500 rpm), about equal at medium speed (3500‒5500 rpm), and increased at high engine speed (5500‒8500 rpm). Furthermore, the greater blending fuel greatly reduced fuel usage due to the high viscosity of the LDPE pyrolytic oil.]]>
<![CDATA[Design and Analysis of Finger Prosthetics Using Finite Element Methods ]]>
<![CDATA[ JMPM (Jurnal Material dan Proses Manufaktur) Vol. 8 No. 1 (2024): June ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Yogyakarta ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
DOI: 10.18196/jmpm.v8i1.22283
<![CDATA[According to the Central Statistics Agency (BPS), the total number of physically disabled people in Indonesia until 2020 reached 22.5 million people. However, only around 18% use assistive devices. 3D printing technology in the world of health can be used to print prosthetic materials. However, many previous functional prosthetic designs were still fabricated conventionally and did not pay attention to prosthetic standards and quality. One computational testing method that can be used to test prosthetic strength is the finite element method. The aim of this research is to produce a functional finger prosthetic design that has tested its strength through computational simulations using the finite element method to minimize prosthetic production costs so that the resulting prosthetics are more affordable.The tools needed in this research are a ruler for finger measurements and a computer or laptop with Fusion 360 software.Based on the analysis results, it shows that this model is able to withstand loads of up to 100 N with deformation, stress and safety factor values produced respectively of 0.016 mm, 27,605 MPa and 7.49.]]>
