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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Sinergi Jurnal Teknik Pengairan: Journal of Water Resources Engineering Conference SENATIK STT Adisutjipto Yogyakarta Jurnal Surya Masyarakat Unri Conference Series: Community Engagement International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Dulang: Jurnal Pengabdian Kepada Masyarakat Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Advance Sustainable Science, Engineering and Technology (ASSET)
Putu Hadi Setyarini
Mechanical Engineering Department, Brawijaya University
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Journal : Rekayasa Mesin

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Perilaku Impak Dan Porositas Paduan Al-Si-Mg Pada Pengecoran Sentrifugal Akibat Temperatur Pemanasan Awal Cetakan Setyarini, Putu Hadi
Jurnal Rekayasa Mesin Vol 2, No 1 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

Aluminum is widely used as raw materials in engineering because this material is often used to replace other metals with the same function. This occurs when the product must have properties such as light, good heat conductivity, and low melting point. An example of making Aluminium product is centrifugal casting process. Centrifugal casting is a method of casting metal by pouring metal into a mold that rotates with a certain speed. This study aims to determine the effect of preheating temperature of the mold of on impact strength and porosity of aluminum alloy Al-Si-Mg in centrifugal casting. The experiments were carried out with and without mold pre-heating. The temperature of preheated mold were 100 º C, 200 º C, 300 º C, 400 º C. The data obtained were analyzed statistically and theoretically. The results showed that the increasing of the preheating temperature of the mold significantly affects the value of impact strength of aluminum alloy Al-Si-Mg. The highest value of impact strength and the lowest porosity were obtained in the preheating temperature of 400 º C. This is due to reduced temperature gradient between the temperature of molten metal and the mold temperature resulting in a slower cooling rate in a homogeneous suspension.Keywords : centrifugal casting, preheating the mold, aluminum alloy Al-Si-Mg, impact strength, porosity
Pengaruh Fraksi Volume Terhadap Kekuatan Tarik dan Lentur Komposit Resin Berpenguat Serbuk Kayu Gapsari, Femiana; Setyarini, Putu Hadi
Jurnal Rekayasa Mesin Vol 1, No 2 (2010)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

On the research, composite was made from polyester with volume of filler fraction variable of 15%, 30%, 45% and the type of filler was Mahogany (Swietania mahogani). The filler measurement used was 50 mesh. Polymer matrix used was BQTN 157 unsaturated resin polyester. The tensile test of experiment specimen was based on ASTM D638 M-93. and the bending specimen was based on D790-92 Standard. The higest of tensile strength on the volume fraction of 30% that is of 2.081916 kg/mm2 . For the composite material with particle of composite material mahogany with filler volume fraction of 15% had the average flexural strength of 34.98 N/mm². On the particle with volume fraction of 30% had the highest average flexural strength of 45.6780 N/mm². The higest Modulus of Elasticity(E) and Shear Modulus (G) was owned by the composite with filler volume of 635.464 kg/mm2 dan 958.85 MPa Keywords : Composite, volume fraction, tensile strength, flexural strength
Optimasi Proses Sand Blasting Terhadap Laju Korosi Hasil Pengecatan Baja Aisi 430 Setyarini, Putu Hadi
Rekayasa Mesin Vol 2, No 2 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

Corrosion is naturally occuring phenomenon and will be exist by itself in the metal. The metal will be damaged by an electrochemical reaction with its environment and can not eliminated but can do a variety of prevention efforts, such as by using a barrier layer that is in the process of painting. In the process, the quality of painting is paint adhesion influenced by surface roughness. The preparation can be done by themethod of spraying a sand blasting abrasive material in the form of sand forced into the surface of the material. sand blasting process could make the paint more durable and more resistant to corrosion. The parameter used in this study were sand blasting spraying pressure i.e 4;4,5;5;5,5 bar, sand blasting spraying angle 600; 750; 900. The results showed that the greater the pressure and angle of sand blasting, the corrosion rate is lower Average corrosion rate of the lowest occured at 5 bar spraying pressure and 900 spraying angle were 7.2157-E5; 7.1157-E5; 6.95-E5 mpy Keywords : sand blasting, corrosion.
Pengaruh Kekasaran Permukaan Terhadap Porositas Hasil Hot Dipped Galvanizing (HDG) Gapsari MF, Femiana; Setyarini, Putu Hadi; Alamsyah, Fikrul Akbar
Jurnal Rekayasa Mesin Vol 3, No 1 (2012)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

The process of Hot Dipped Galvanizing (HDG) is done in this study in order to cover steel AISI 1010. This study is aimed at investigating the influence of the variation of roughness level of specimen towards the layer thickness and the porosity of the hot dipped galvanizing of steel AISI 1010. The level of roughness of the specimen is obtained from grinding on grid 100, 500, 800, and 1000. This process causes difference in the roughness of the surface which is measured by using the Surface Roughness Test. The controlled variable is dipping temperature of 480oC. The time of hot dipped galvanizing is 6 minutes, while the time of grinding is 3 minutes. The test done in this study is non destructive test with spray test. The result showed that the porosity increased as the function of the roughness.Keywords: hot dipped galvanizing, spray test, porosity, surface roughness.
Pengaruh Kekasaran Permukaan Terhadap Ketebalan Lapisan Hasil Hot Dipped Galvanizing (HDG) Alamsyah, Fikrul Akbar; Setyarini, Putu Hadi; MF, Femiana Gapsari
Jurnal Rekayasa Mesin Vol 3, No 2 (2012)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

The process of Hot Dipped Galvanizing (HDG) is done in this study in order to cover steel AISI 1010. This study is aimed at investigating the influence of the variation of roughness level of specimen towards the layer thickness of the hot dipped galvanizing of steel AISI 1010. The level of roughness of the specimen is obtained from grinding on grid 100, 500, 800, and 1000. This process causes difference in the roughness of the surface which is measured by using the Surface Roughness Test. The controlled variable is dipping temperature of 480oC. The time of hot dipped galvanizing is 6 minutes, while the time of grinding is 3 minutes. The test done in this study is non destructive test with spray test. The result showed that the layer thickness increased as the function of the roughness.Keywords: hot dipped galvanizing, spray test, layer thickness surface roughness.
Proses Pack Nitriding dengan Variasi Suhu dan Media Pupuk Nitrogen Terhadap Kekerasan AISI 420 Sulistyo, Erwin; Setyarini, Putu Hadi; Sudana, Yoni
Jurnal Rekayasa Mesin Vol 1, No 1 (2010)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

The aim of this research was to investigate the effects of heating temperature and concentration of nitrogen fertilizer, i.e urea and ZA, during pack nitriding to the surface hardnessof AISI 420. The process was done by heating the steel of AISI 420 with temperature varied between 4200C, 4700C, 5200C, 5700C dan 6200C for 6 hours after stress relieving in the pack fulfiled with urea or ZA. The result measured by microvickers hardness tester showed that the hardness increased as the function of the temperature.Keywords : pack nitriding, temperature, hardness, AISI 420, nitrogen fertilizer
Analisis Keandalan Mesin Produksi Tissue Basah Sulistyarini, Dwi Hadi; Setyarini, Putu Hadi; Cahyawati, Amanda Nur
Jurnal Rekayasa Mesin Vol 10, No 1 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.01.12

Abstract

The wet tissue company in this research has 46 volpack machines, 44 are used to produce wet sanitizer tissue and 2 other machines are used to produce wet cologne tissue. During this time, the company produces cologne type wet tissue where its production does not reach the production target. One of the causes of this problem was the high downtime influenced by the reliability of these components and machine; so causing the production capacity of wet cologne tissue to be reduced and company's production targets not achieved. Therefore, in order to achieve the company's production targets and to make the production process more efficient and effective, it is necessary good maintenance actions that pay attention to the reliability value of each critical component. This study analyzes the reliability of critical components so that companies can take action to increase their machine reliability.
Pengaruh Variasi Konsentrasi Inhibitor dari Kitosan Sisik Ikan terhadap Perilaku Korosi Besi ASTM A36: Studi Ekstrapolarisasi Tafel dan EIS Hidayatullah, Syarif; Gapsari, Femiana; Setyarini, Putu Hadi
Jurnal Rekayasa Mesin Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.01.6

Abstract

Corrosion is the deterioration of metal that can reduce its yield strength, ultimate strength, financial losses, waste of natural resources, and endanger security. Thus, the corrosion rate must be slowed, or if possible, stopped. This study aimed to investigate the mechanism of corrosion protection by using corrosion inhibitors of chitosan extracted from fish scales on ASTM A36 steel. ASTM A36 steel was used as the specimen with a thickness of 3 mm. Fish scales powder was used as chitosan source extracted by using three mechanisms, i.e., deproteination (7% NaOH immersion), demineralization (immersion of 1 M HCl in 100 ml) and deacetylation (immersion process with 70% NaOH concentration). Corrosion inhibitor was composed of 8 g of chitosan from fish scales, 50 ml of distilled water, and 1 ml of CH3COOH. Corrosion protection with the inhibition method was applied with variations in the inhibitor concentration (1000 ppm, 2000 ppm, 3000 ppm, 4000 ppm, 5000 ppm, and 6000 ppm). The corrosion rate was tested by the polarization method and Electrochemical Impedance Spectroscopy (EIS). The result demonstrated that the effectiveness of corrosion protection started to increase from the concentration of 1000 ppm, 2000 ppm, 3000 ppm to 4000 ppm, with an effective value of 46.444%, 56.386%, 59.691%, and 72.630%, respectively. However, the effectiveness level started to decline from the concentrations of 5000 ppm to 6000 ppm, with 67.388% and 59.276%, respectively. This phenomenon occurs due to the inhibitor concentration has exceeded the maximum limit, so the interaction between inhibitor molecules was higher than the interaction between the inhibitor and the metal surface.
Penggunaan Minyak Alami dengan Minimum Quantity Lubrication terhadap Hasil Proses Bubut AA 6061 Setyarini, Putu Hadi; Anam, Khairul; Wahyudi, Muhammad
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.25

Abstract

Environmentally friendly lubricants are lubricants that are easily dissolved in the environment and are not harmful to the ecosystem. It uses to reduce the heat in the contact area so that the machinability of the workpiece and the ability of the chisel will increase. To minimize the use of bio-cutting fluids, lubrication is carried out by minimum drop lubrication in the lathe process. The purpose of this research is to comply with the surface roughness of the workpiece and the shape of the chip. The material used is aluminum 6061, the natural oil used are rubber seed oil, virgin coconut oil, sunflower seed oil, and castor oil. The turning parameters were the depth of cut 0.5 mm, spindle speed of 330 rpm, feed rate 0.231 mm/rev, tool angle 90o, drop lubrication 192 ml/hour, infeed length 100 mm. The results of the research showed that virgin coconut oil has the lowest surface roughness. This is because the viscosity value of virgin coconut oil is very small so that the flow rate is able to work perfectly to lubricate the contact area. It has a thin chip configuration, the tool also wears but did not experience cracks.
Karakteristik Fiber Metal Laminate Akibat Beban Impak Balistik Dari Peluru Kaliber 9 mm Full Metal Jacket (FMJ) Fadly, Muhammad Syaiful; Purnowidodo, Anindito; Setyarini, Putu Hadi
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.12

Abstract

Estimated damage levels from ballistics impact zone provide valuable information to make bulletproof materials more effective. Therefore, this study aims to determine the impact of ballistics including hole shape, hole depth, macro, and microstructure on fiber metal laminate. The characteristics of ballistics impact for each configuration target is obtained from experiment and comparison based on simulations with finite element method. Test experiments used short-barreled fire guns at a distance of 5 meters with a normal attack angle based on the National Institute of Justice standard. Simulation with Johnson-Cook plasticity models for aluminum plate and orthotropic material model for kevlar/epoxy. The experiment and simulation results showed that the projectile is able to perforate the first layer (aluminum plate) and the second layer (Kevlar/epoxy) while the last layer (backplate) is deformed to form a bulge. The aluminum plate is perforated by the failure of petaling formation on the backside and spread of dimple fracture around the area of the petal which indicates ductile fracture while kevlar/epoxy is perforated by projectile with failure of fiber fracture on primary yarn, fiber pull-out, fiber stretching and fiber rupture.
Co-Authors A.A. Ketut Agung Cahyawan W Amanda Nur Cahyawati Anam, M. Khairul Anindito Purnowidodo Anshori, Mohammad Audrey, Reinaldo Evan Bakri Bakri Bakri Bakri Darmadi, Djarot Bangun Dewi, Francisca Gayuh Utami Dhanang Suryo Prayogo Diana Aisyah Dina Novera Serfandi Djoko Sutikno Dwi Hadi Sulistyarini Dwi Hadi Sulistyarini Erwin Sulistyo Fachrezi, M. Qashmal Fariqi, Ikhwan Hafiz Femiana Gapsari MF Fikrul Akbar Alamsyah Firdaus Nur Dwi Fahmi Fitriani, Siti Noor Harjo, Apollo Ode Rea Hery Widijanto I Wayan Gede Suputra Wardiana Iksandy, Jemmie Inayati, Dian Mochammad Roviq Mochammad Roviq Muhammad Sadat Hamzah Muhammad Syaiful Fadly Muhammad Syaiful Fadly Muhammad Wahyudi Naafila, Amira Nuretha Hevy Purwaningtyas Pembayun, Hanum Surya Purnami Purnami Redi Bintarto, Redi Rudianto Raharjo Sagita, Sagita Serfandi, Dina Novera Sholikin, Atfalus Sisca Fajriani Sisca Fajriani Sonief, Achmad As'ad Sonief, Achmad As’ad Sri Chandrabakty Sugiarto S Sugiarto Sugiarto Sugiarto, S Sulistyono Sulistyono Sulistyono Sulistyono Syarif Hidayatullah Teguh Dwi Widodo Tri Nurwati Wiwik Handayani Yoni Sudana