Journal of Materials and Manufacturing
https://jmatman.org/index.php/journal
<p><strong>Journal of Materials and Manufacturing (JMM)</strong> is a double-blind peer-reviewed scientific journal that publishes scientific studies in the fields of material engineering, mechanical engineering, applied sciences technology and closely related science/field. JMM is an open-access journal of related scientific research and technology development. It publishes reviews and regular research papers. All manuscripts submitted by the authors that have not been published elsewhere and that do not have ethical concerns are referred to the referee to be published in the journal. All papers published by JMM are double blind peer reviewed. JMM is published two times per year in july and December. Authors retain the copyright to their work licensed under the CC BY 4.0. The publication language of the Journal is only English. There is no article processing charges (APCs). The average time from manuscript submission to publication is approximately 4 weeks.</p> <p>ISSN: 2822-6054</p>Uğur Köklü, Ph.D, University of Karamanoglu Mehmetbey, Turkey. ISSN: 2822-6054 en-USJournal of Materials and Manufacturing2822-6054Mechanical properties evaluation of recycled high density polyethylene via additive manufacturing
https://jmatman.org/index.php/journal/article/view/31
<p>The recycling of plastic waste has become increasingly important due to the negative impact of plastic on the environment. Additive manufacturing, also known as 3D printing, offers a promising solution for utilizing recycled plastics in the production of new parts. Due to increased demand and the production of polymers, recycling of plastic materials is highly sought nowadays. The thermo mechanical processes used to recycle these materials change their mechanical behavior. The current study focuses on the recycling of high-density polyethylene (HDPE), one of the most recycled materials in the world, to be recycled for use in additive manufacturing. Experimental testing and evaluation of the impact and tensile properties of fused filament fabrication (FFF) specimens made from virgin and recycled materials. This study reveals that the mechanical properties of the recycled HDPE polymer were generally improved over several recycling steps, making HDPE recycling a viable option for circular use. Moreover, repetitions two through five exhibited the best overall mechanical behavior, demonstrating that HDPE polymer recycling has a significant influence apart from the environmental one.</p>Javed Ahmad Khan TipuAdnan Aslam NoonMuhammad ArifMuhammad NaveedHaris Ahmed KhanMuhammad Muaz SuhaibAamer Sharif
Copyright (c) 2023 Journal of Materials and Manufacturing
2023-12-182023-12-18221910.5281/zenodo.10012303A study of erosion wear behavior of Inconel-718 nickel-based superalloy at different impingement angles
https://jmatman.org/index.php/journal/article/view/34
<p>Inconel-718 Nickel Based Superalloy used especially in aerospace applications materials are subject to solid particle erosion. Solid particle erosion causes the structural integrity of Inconel 718 materials to deteriorate. Therefore, it reduces the service life of the material. In this study, it is aimed to investigate the variation of Inconel-718 solid particle erosion resistance depending on the particle impingement angle. The erosion testing was carried out using air-jet erosion test rig (ASTM G76- 13) 30°,60° and 90° impingement angle. After the erosive wear tests, the eroded surfaces were examined with a three- dimensional (3D) optical surface profilometer. In order to provide the erosive wear distribution of Inconel 718, the proportions of the sections of the samples, the areal surface roughness values, the 3D surface topographies and the surface morphology were examined according to the surface impact properties. In conclusion, the maximum wear occurred at the impingement angle of 30°, which is an indication of ductile impressions. In addition, the surface roughness values and surface topographies have also changed significantly depending on the impact angle. It has deeper and wider craters at an impact angle of 30° and its craters are visualized by profilometry analysis.</p>Mustafa Kaplan
Copyright (c) 2023 Journal of Materials and Manufacturing
2023-12-182023-12-1822101910.5281/zenodo.10014151 Investigation of the effects of machining parameters on hole quality in drilling mild steel AISI 1045
https://jmatman.org/index.php/journal/article/view/37
<p>The current study shows the effect of machining parameters such as feed rate and spindle speed on the hole quality such as hole size, circularity and surface roughness in drilling AISI 1045. The experiments were performed using high speed steel drill bits. The result indicated that hole size decreases with increasing feed rate and increases with increasing spindle speed. However, circularity decreases with increasing both feed rate and spindle speed. Furthermore, surface roughness increases with increasing feed rate and decreases with increasing spindle speed. Moreover, Analysis of variance deals that feed rate has higher influence on hole size with percentage contribution of 59.16% than spindle speed of 38.37 % on hole size. The percentage contribution of feed rate is greater than spindle speed on circularity 72.40 % and 25.57% respectively. Moreover, the percentage contribution of feed rate on surface roughness is 61.89% greater than spindle speed of 37.14 %.</p>Aqib Hussain
Copyright (c) 2023 Journal of Materials and Manufacturing
2023-12-182023-12-1822202710.5281/zenodo.10401152 Investigation of the effects of shielding gas flow rate on weld penetration in MIG welding
https://jmatman.org/index.php/journal/article/view/38
<p>In today's industry, the welding process that enables the joining of various materials is of great importance for the success and sustainability of the production process, being used in diverse environments such as open-closed spaces, underwater, among others. This joining method is constantly being developed and diversified in the face of dynamic and rapidly changing industrial conditions along with increasing global competition. In this study, the effect of different protective welding gas flow rates on the penetration of welding has been examined by welding a low carbon steel sheet material and an automation steel-made connecting element using the MIG welding process. While keeping the other welding parameters of the test samples constant, the welding process was carried out at 8 different gas flow rate values. As a result of the measurements, the welding penetration was examined, and the gas flow rates that provide optimum welding penetration values for both the sheet material and the connecting element were determined. The flow rates observed to provide optimum welding penetration values were 10 L/min and 11 L/min. With this study, an environmentally friendly approach was adopted by avoiding excessive use of shielding gas in the welding production process, aiming to achieve a higher quality and less costly product in this production process.</p>Anıl ŞekerFurkan DeğirmencioğluMesut KARAKUŞ
Copyright (c) 2023 Journal of Materials and Manufacturing
2023-12-182023-12-1822283710.5281/zenodo.10401195Multi-walled carbon nanotubes and polypyrrole composites: A promising approach for dye-sensitized solar cell enhancement
https://jmatman.org/index.php/journal/article/view/42
<p>The Dye-Sensitized Solar Cells (DSSCs) counter electrodes were fabricated using a three-electro deposition technique. The counter electrodes were constructed by depositing Polypyrrole (PPy) and its composites with multi-walled carbon nanotubes (MWCNTs) and copper layers on a stainless-steel substrate. This approach yielded 5-layer, 4-layer, and 2-layer MWCNTs/PPy/Cu composite counter electrodes. Electrochemical Impedance Spectroscopy (EIS), X-ray Diffraction (XRD), and Cyclic Voltammetry (CV) were employed to analyze the electrochemical properties, crystallographic structure, and electrocatalytic activity of the counter electrodes, respectively. The 5-layer MWCNTs/PPy/Cu-coated counter electrode demonstrated the lowest charge transfer resistance and exhibited superior catalytic activity compared to the other fabricated counter electrodes and the polypyrrole electrode.</p>Tayyaba IqbalZahid UllahMehwish SultanNajma BashirRehana Sharif
Copyright (c) 2023 Journal of Materials and Manufacturing
2023-12-182023-12-1822384410.5281/zenodo.10401207