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ANALISIS PUTARAN SPINDEL TERHADAP WAKTU DAN BIAYA PRODUKSI PROSES RESERVOIR COVER ALUMINIUM 6061 MENGGUNAKAN CNC TU-3A Pratama, Syafril Yulistian; Soulton, M. Fauzi; Sari, Eli Novita; Duratun Nasiqiati Rosady, Siti; Arifin, Syamsul
Jurnal Inovasi Teknologi Manufaktur, Energi dan Otomotif Vol. 2 No. 2 (2024): Jurnal Inovasi Teknologi Manufaktur, Energi, dan Otomotif
Publisher : Politeknik Negeri Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57203/jinggo.v2i2.2024.115-129

Semakin tingginya kompetisi antara produsen produk-produk manufaktur dan kebutuhan akan kualitas produk yang dihasilkan, dengan kecepatan produksi yang tinggi, efisiensi biaya produksi yang tinggi menjadi suatu prasyarat. Produk reservoir cover merupakan sebuah bagian dari komponen master silinder rem, yang berfungsi menjadi penutup tangki cadangan minyak rem agar tidak tumpah saat terkena guncangan. Penelitian ini menggunakan metode eksprimen dengan memvariasikan putaran spindel kemudian diamati, dicatat, dan menghitung data- data hasil penelitian. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh variasi putaran spindel 1100, 1150, dan 1200 rpm, terhadap waktu dan biaya produksi reservoir cover dengan material aluminium 6061 menggunakan mesin CNC tu-3a. Dari hasil perhitungan waktu dan biaya yang dilakukan pada proses produksi reservoir cover, didapat waktu produksi sebesar 64.12 min/produk dan biaya produksi sebesar Rp. 204.000,-/produk. Kata Kunci: Terdiri Reservoir cover, Waktu produksi, Biaya produksi

Numerical Analysis Of Static Structure On The Floor Frame Of The Medium Bus I Gusti Ngurah Bagus, Catrawedarma; Sholeh, Mohamad; Sari, Eli Novita; Wahid, M Abdul; Fiveriati, Anggra
Jurnal Keselamatan Transportasi Jalan (Indonesian Journal of Road Safety) Vol. 11 No. 1 (2024): JURNAL KESELAMATAN TRANSPORTASI JALAN (INDONESIAN JOURNAL OF ROAD SAFETY)
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46447/ktj.v11i1.586

In the manufacturing process, the bus frame is one of the essential parts of the vehicle that supports the overall weight of the vehicle, starting from the interior and passengers inside. In this research, we will carry out a structural strength analysis of the frame using the finite element method, which focuses on the floor frame of a medium bus which receives static loading from the bus interior, including seats with the maximum passenger capacity of a medium bus. The numerical analysis uses Solidworks 2021 for the 3D design of floor frames and structural analysis of the strength of medium bus floor frames using static structural toolbar on Ansys Workbench 2018 software by varying ASTM A514, AISI 1020, and Aluminum 2014-T4 materials. The results obtained are numerical analysis using a mesh size of 27 mm. The maximum deformation, maximum equivalent stress Von Mises, and safety factor are the same location for various ASTM A514, AISI 1020, and Aluminum 2014-T4 materials. The lowest deformation of 1.5735 mm occurred when using AISI 1020 material, and the highest deformation was 1.7209 mm when using Aluminum 2024-T4 material. The maximum equivalent stress Von Mises from the front view to section A-A is 101.23 MPa on AISI 1020 material. The safety level of the design with the material is 4.8999. AISI 1020 is the most optimal material for medium bus floor frames with the highest level of safety and lowest deformation.

ANALISIS KEKUATAN BEARING PADA MESIN GRANULATOR TERHADAP PEMBEBANAN STATIS MENGGUNAKAN METODE FINITE ELEMENT ANALYSIS (FEA) Bayu Pradana, Muhamad Rizki; Anam, Chairul; Yuniwati, Ika; Umar, Mega Lazuardi; Sari, Eli Novita
Jurnal Rekayasa Mesin Vol. 24 No. 2 (2024): Jurnal Rekayasa Mesin
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jrm.v24i2.542

The main objective of this study is to develop a highly accurate, high-fidelity model of bearing geometry, which reflects the actual geometry of the bearing to ensure the validity of the analysis. The model will carefully take into account various geometric parameters, such as bearing dimensions and tolerances, and detect potential errors in the model. Simulations are carried out by applying realistic static loads and boundary conditions, close to actual operating conditions, to obtain relevant and practical results. In addition, calculations and analysis of stress distribution throughout the bearing are also carried out, with the aim of identifying stress distribution patterns and determining areas with the highest stress. This analysis is crucial for detecting possible failures and ensuring optimal bearing design. Deformation in various parts of the bearing is measured to understand changes in shape and stiffness of the structure under load. This measurement aims to find the area with the highest deformation and evaluate the bearing response to the applied load. Finally, an evaluation of bearing safety factors is carried out to ensure sufficient safety margins in accordance with industry standards, with the hope of ensuring the reliability and long-term service life of the bearing as well as improving the performance and efficiency of the mechanical systems that use it.

STUDI EKSPERIMENTAL PEMISAHAN MINYAK-AIR MENGGUNAKAN HIDROSIKLON-BUBBLE GENERATOR Catrawedarma; Sari, Eli Novita; Fiveriati, Anggra; Wahid, Muhammad Abdul; Pamuji, Dian Ridlo; Syaifuddin, Muhammad
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i2.285

This research aims to analyze the performance of oil-water separation using a hydrocyclone-bubble generator. The bubble generator used was an ejector type to make it easier to suck in atmospheric air. The research was carried out by injecting an oil-water mixture through a bubble generator before entering the hydrocyclone system. The air flow injected into the bubble generator was varied from 0.1-1.5 lpm. From experimental studies, it was found that as the air flow increased, the split ratio also increased. The pressure drop at the overflow increases gently while the underflow pressure drop increases significantly along with increasing input air flow. The greater the input air flow, the more significant the difference in underflow and overflow pressure drop. It has implications for a larger pressure drop ratio. The greater the air flow, the greater the overflow efficiency decreases, and the underflow efficiency increases. The highest efficiency in overflow is 87.77%.

PENGARUH PENGGUNAAN PASIR SILIKA DAN PASIR PANTAI TERHADAP KEKUATAN TARIK PADA PENGECORAN LOGAM ALUMINIUM Utomo, Wahyu; Sari, Eli Novita; Fiveriati, Anggra; Wahid, Muhammad Abdul; Pamuji, Dian Ridlo
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Casting is the process of manufacturing molten metal with a mold to produce a shape close to the original shape. The commonly used molding sand is mountain sand, river sand and silica sand. This research aims to analyze defects and tensile test results of castings with various types of sand (beach sand and silica sand) and types of aluminum (ADC 12 aluminum and aluminum from waste cans). The casting method used is traditional sand blasting. The results show defects in the form of surface hardness, rat tails, shrinkage cavities, and pinholes. The tensile test showed that the highest Ultimate Tensile Strength (UTS) value was obtained from a mixture of Al ADC 12 with beach sand with an average UTS value of 172.44 MPa.

Penerapan Mesin Vacuum Sealer untuk Meningkatkan Produksi Daya Simpan Olahan Makanan Ringan pada UMKM di Desa Labanasem, Kabupaten Banyuwangi Sari, Eli Novita; Umar, Mega Lazuardi; Rulianto, Jangka; Susanto, Reyhan Bhiqman; Utomo, Wahyu
JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Vol 8, No 2 (2024): November
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jpp-iptek.2024.v8i2.6749

Bisnis kecil dan menengah (UMKM) di Desa Labanasem tidak dapat bersaing dengan mitra lain untuk mendapatkan hasil terbaik karena teknologi tradisional. Untuk mengurangi biaya produksi dan biaya simpan produk, para mitra berusaha mengurangi biaya produksi, terutama dalam hal pengemasan. Akibatnya, mereka mengubah metode pengemasan mereka dari tradisional ke kontemporer. Produksi tidak efisien karena peralatan pengemasan terbatas. Karena hal ini, pemasaran produk menjadi lebih lambat. Tujuan dari program pengabdian ini adalah untuk menerapkan teknologi tepat guna, yaitu mesin vacuum sealer, yang dapat meningkatkan kualitas produk, kualitas kemasan, dan nilai ekonomi bagi UMKM di Desa Labanasem, Kecamatan Kabat, Banyuwangi. Berdasarkan masalah yang dihadapi UMKM, penerapan mesin vacuum sealer dapat membantu menyelesaikannya. Dengan adanya kegiatan pengabdian ini, produk mitra menjadi lebih tahan lama usia simpannya sehingga tidak banyak produk yang dibuang karena rusak atau usia simpan pendek.

THE EFFECT OF SHIELDING GAS ON SURFACE DEFECTS AND MECHANICAL PROPERTIES OF MATERIALS AFTER THE GMAW WELDING Catrawedarma, IGNB; Rosi, Azriel Alfito Dela; Wahid, M. Abdul; Pamuji, Dian Ridlo; Sari, Eli Novita; Fiveriati, Anggra
Otopro Vol 20 No 1 Nov 2024
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v20n1.p17-23

This research aims to analyze the strength and results of welded joints by testing non-destructive and destructive tests using CO2 and argon shielding gases. The type of welding used was gas metal arc welding with SS400 steel material. After welding, the material was tested using liquid penetrant, porosity, tensile, and bending tests. The results were that CO2 shielding gas tended to have a convex and wide shape, while the welding results from argon gas tended to have a small and flat shape. In both shielding gases, there were defects in undercuts, lack of fusion, and spatter after the liquid penetrant test. The porosity test results have circular spots and irregular lines with holes. The average tensile strength value obtained from argon shielding gas was 255.761 MPa, and CO2 shielding gas produced an average value of 219.671 MPa. The bending strength of the material with argon shielding gas obtained an average value of 729.00 MPa and CO2 gas shielding an average value of 611.99 MPa.

STUDI EKSPERIMENTAL PEMISAHAN MINYAK-AIR MENGGUNAKAN HIDROSIKLON-BUBBLE GENERATOR Catrawedarma; Sari, Eli Novita; Fiveriati, Anggra; Wahid, Muhammad Abdul; Pamuji, Dian Ridlo; Syaifuddin, Muhammad
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i2.285

This research aims to analyze the performance of oil-water separation using a hydrocyclone-bubble generator. The bubble generator used was an ejector type to make it easier to suck in atmospheric air. The research was carried out by injecting an oil-water mixture through a bubble generator before entering the hydrocyclone system. The air flow injected into the bubble generator was varied from 0.1-1.5 lpm. From experimental studies, it was found that as the air flow increased, the split ratio also increased. The pressure drop at the overflow increases gently while the underflow pressure drop increases significantly along with increasing input air flow. The greater the input air flow, the more significant the difference in underflow and overflow pressure drop. It has implications for a larger pressure drop ratio. The greater the air flow, the greater the overflow efficiency decreases, and the underflow efficiency increases. The highest efficiency in overflow is 87.77%.

PENGARUH PENGGUNAAN PASIR SILIKA DAN PASIR PANTAI TERHADAP KEKUATAN TARIK PADA PENGECORAN LOGAM ALUMINIUM Utomo, Wahyu; Sari, Eli Novita; Fiveriati, Anggra; Wahid, Muhammad Abdul; Pamuji, Dian Ridlo
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 2 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Casting is the process of manufacturing molten metal with a mold to produce a shape close to the original shape. The commonly used molding sand is mountain sand, river sand and silica sand. This research aims to analyze defects and tensile test results of castings with various types of sand (beach sand and silica sand) and types of aluminum (ADC 12 aluminum and aluminum from waste cans). The casting method used is traditional sand blasting. The results show defects in the form of surface hardness, rat tails, shrinkage cavities, and pinholes. The tensile test showed that the highest Ultimate Tensile Strength (UTS) value was obtained from a mixture of Al ADC 12 with beach sand with an average UTS value of 172.44 MPa.

EFFECT OF CALCINATION TEMPERATURE ON F-DOPED LiFePO4 CATHODE MATERIAL ON FORMATION OF OLIVINE PHASE Ramadhani, Ahmad Ilham; Noerochim, Lukman; Susanti, Diah; Sari, Eli Novita
Indonesian Physical Review Vol. 4 No. 3 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i3.99

Olivine single phase of LiFePO4 was successfully synthesized by solid-state reaction (SSR) method through the formation of Fe2P2O7 from precursors of Li2CO3, F2O3, NH4H2PO4, and LiF as materials doping. Variations at temperatures of calcination 670 0C, 700 0C and 750 0C with doped 0.1F. TGA-DSC test results show that the LFP sample undergoes decomposition in the temperature range 0-600 0C. The olivine phase formed at temperatures of more than 650 0C and the oxidation process on the LiFePO4/C sample was completed, and the sample mass was constant. The olivine phase formed was determined by comparing the 2ðœƒ value obtained through characterization with the ICDD LFP (01-081-1173), and accordingly with experiment. The increase of the temperature results from a dominant LFP phase with a larger grain size. The effect of increasing the calcination temperature at 0.1F has resulted in an enlargement of the particle size.

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