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All Journal MESIN Jurnal Ilmiah Teknik Mesin Poros Journal of Materials Exploration and Findings JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Rianti Dewi Sulamet-Ariobimo, Rianti Dewi
Universitas Trisakti
Earth & Planetary Sciences Energy Engineering Environmental Science Mechanical Engineering Other

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PERBANDINGAN KARAKTERISTIK SKD 11 MOD TERHADAP SKD 11 Ariobimo, Rianti Dewi Sulamet
MESIN Vol 9, No 1 (2007): Bahan Bakar Alternatif
Publisher : Program Studi Teknik Mesin, Universitas Trisakti

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Abstract

As mentioned in the previous paper, SKD-11 Mod. is made to upgrade SKD-11properties especially in heat treatment process by modify its chemical composition. This research isconducted to see the improvement that SKD-11 Mod. gain compare to its origin metal, which isSKD-11.
PENGARUH SUHU TEMPERING TERHADAP SKD 11 MOD Ariobimo, Rianti Dewi Sulamet
MESIN Vol 8, No 3 (2006)
Publisher : Program Studi Teknik Mesin, Universitas Trisakti

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Abstract

Tofulfill the demandofhigher toughnessand hardness, a chemical composition modification is madeto SKD-ll. and the modification result is known as SKD-l I Mod. Since the modification is done at thechemical composition then automatically it will change everything, including the heat treatment process andresult. This research, first ofall. is conducted in view ofthe modification factors, whilst, at the same time toexamine whether the producers specification can be achieved.
KEKUATAN LELAH DUCTILE IRON THIN WALL CONNECTING ROD VESPA PX-150: KEKUATAN LELAH DUCTILE IRON THIN WALL CONNECTING ROD VESPA PX-150 Oktaviano, Yoska; Fadhlan, Muhammad; Sulamet-Ariobimo, Rianti Dewi
POROS Vol. 19 No. 1 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i1.26762

Abstract

The use of lightweight components in automotive is one of the strategies that can be taken to support energy resiliencies. Vehicles using lightweight components use less energy compared to those using the normal ones. Lightweight connecting rods have been successfully manufactured using thin wall casting technology. This piston rod is up to 26% lighter than the original component, which was made from forged steel. This thin-wall connecting rod possesses the capabilities of a normal connecting rod. A fatigue test is carried out to ensure the safety of the new design component during application. Fatigue testing was carried out by applying a dynamic force to a connecting rod of one million cycles with a force of 17KN following the ISO 10833 minimum fatigue limit without notches.
HUBUNGAN NILAI CE DENGAN LAPISAN KULIT THIN WALL DUCTILE IRON Fadhlan, Muhammad; Sulamet-Ariobimo, Rianti Dewi; Oktaviano, Yoska
POROS Vol. 19 No. 2 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i2.27322

Abstract

The formation of skin effects in nodular cast iron produced using sand molds is a general problem. Since it can be cleaned during the machining process along with gating system removal. Skin effects become a problem when they form in nodular cast iron thin wall castings. In thin-wall castings, the skin effect becomes a problem because the cleaning process is difficult to perform. Therefore, a mechanism is needed to avoid the formation of skin effects in nodular cast iron thin wall castings. This work is carried out to see the effects of carbon equivalent (CE) as one of the important parameters during the casting process to the formation of skin effects, especially when the cast object produced is a component. Molten metals with different CE values are used to make thin wall ductile iron connecting rod components. Microstructure observations were carried out both in the I-beam and end-rod areas. Then the results obtained are compared with the previous research regarding the skin effects formed in thin-wall ductile iron plates. The result obtained is that the skin effects detected in thin-wall ductile iron connecting rods with different types of patterns and thicknesses from that formed on the plate.
PENGETAHUAN KESELAMATAN KERJA DAN STANDAR KUALITAS SERTA MATERIAL ALTERNATIF UNTUK MASYARAKAT INDUSTRI Sulamet-Ariobimo, Rianti Dewi; Muhammad Najih; M. Fadhlan; Yoska Oktaviano; Yusep Mujalis
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 6 No 1 (2024): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v6i1.16726

Abstract

People's low knowledge of materials means that they can easily be confused or deceived by information about materials on social media or internet pages. Moreover, any information and/or news can be uploaded on social media or internet pages. So, the knowledge and competence of the author become biased and allow the public to receive information that is less or even incorrect which is then accepted as true. This can result in losses or even endanger the community. This Material Introduction and Characterization Training activity was held to help the community, especially the industrial community, to understand more about materials so that they can sort out the information they receive and apply the information correctly so that it will not harm themselves or their environment. This activity was well received by the community as seen from the number of participants who registered and then attended, as well as by looking at the number of participants who did not register but attended the activity. Participants gave good evaluations to the resource persons and hoped that this activity could be carried out more often.
Hollow Connecting Rod Thin Wall Austempered Ductile Iron (TWADI) for Manufacturing Light Weight Components Silva, Ricardina Freitas da; Suharno, Bambang; Sulamet-Ariobimo, Rianti Dewi
Journal of Materials Exploration and Findings Vol. 3, No. 2
Publisher : UI Scholars Hub

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Abstract

Efforts made by the automotive industry to reduce energy consumption have encouraged researchers to carry out various studies. One way is to make components lighter by casting thin wall austempered ductile iron (TWADI). Reducing the weight of components such as connecting rods (conrod) will result in lower energy consumption, but provided that these components still meet standards in terms of mechanical properties and microstructure or even exceed them. In this research, design optimization was applied to conrod by making the area I-beam zero mm (hollow), with hope that it can replace conrod Vespa PX-150. While the manufacturing process is divided into several stages. The focus of this research only discusses the design process stage to determine the optimal design with the help of simulation. The difference is found in the number of defects formed. The observations show that shrinkage defects in Model A and Model B are both located at rod big end. Comparison results of the shrinkage defects formed show that in Model A there are 3 shrinkage defects while in Model B there are only 2 defects. From the results obtained, it is recommended to use plates I-Beam in Model B. Based on the results of this simulation, the casting process can be done to validate the simulation results before optimization is carried out in manufacturing of hollow conrod.
Co-Authors Aji, Daisman P.B. Anas, M. Sjahrul Bambang Suharno Dody Prayitno Fachry Abda El Rahman Johny Wahyuadi Soedarsono M. Fadhlan Muhammad Najih Mujalis, Yusep Muslih, Moh Noor Eddy, Noor Oktaviano, Yoska Silva, Ricardina Freitas da Tono Sukarnoto, Tono Triyono Triyono Yoska Oktaviano Yusep Mujalis