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All Journal Jurnal Teknik Mesin Jurnal Teknologi Reaktor Nuklir Tri Dasa Mega Rekayasa Mesin Media Teknika ASEAN Journal on Science and Technology for Development International Journal of Applied Sciences and Smart Technologies Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat
Budi Setyahandana
Sanata Dharma University
Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Pengaruh Hard Chrome Plating pada Peningkatan Kekerasan Baja Komponen Kincir Setyahandana, Budi; Christianto, Yohanes Eko
Media Teknika Vol 12, No 1 (2017)
Publisher : Sanata Dharma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1033.063 KB) | DOI: 10.24071/mt.v12i1.944

Abstract

 High carbon steel generally has a high hardness but lower ductility. To obtain a hard and ductile material, surface hardening can be done on a low carbon steel. Surface hardening can be achieved by hard chrome plating. The objectives of this research were: (1) Conducting the process of hard chrome plating on low carbon steel, (2) Knowing the increasing of surface hardness of low-carbon steel after the plating process in time variations, (3) Knowing the increasing of surface hardness of the low carbon steel after the coating process in anode-cathode distance variations. The specimens was made of low carbon steel. The size of the specimen were 40 mm in length, 35 mm in width and 6.8 mm in thickness. The variables measured were: (1) Coating time (t), (2) The distance between the cathode and anode in the coating process (l). After the coating process completed, the specimen surface hardness was measured by Vickers Hardness Tester. The results showed that up to 532 HV, low carbon steel hardness increased linearly at increasing time plating. At 120 minutes plating, the hardness also increased linearly at current densities up to 1.05 amperes/dm2. While at the current density of 1.1 amperes/dm2, the hardness increased significantly higher.
Pengaruh Komposisi 2.9% dan 3.8% Si terhadap Kekuatan Lelah Besi Cor Kelabu Ekaputra, I Made Wicaksana; Litaay, Arnold A. I.; Setyahandana, Budi
Jurnal Rekayasa Mesin Vol 10, No 3 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.03.3

Abstract

The addition of Silicon (Si) on the gray cast iron can initiate graphite dispersion where the graphite becomes smaller and more evenly distributed. This study investigated the effect of Si concentration of 2.9% and 3.8%  on the fatigue strength of the gray cast iron. The Si was added by the casting process with the open ladle method. The specimens were manufactured by following the ASTM E-466. Several tests such as tensile test, Brinell hardness test, and microstructure observation were conducted prior to the fatigue testing. The results showed that the Si concentration of 3.8% tended to increase the tensile strength up to 1.3%, the hardness up to 7.6%, and fatigue limit up to 10%. Moreover, the fatigue fractured specimen of 3.8% Si showed the combination of type A and type B graphite where graphite is smaller and more evenly distributed. In addition by applying the logistic equation, the fatigue strength can be predicted well.
Pengaruh Hard Chrome Plating pada Peningkatan Kekerasan Baja Komponen Kincir Budi Setyahandana; Yohanes Eko Christianto
Media Teknika Vol 12, No 1 (2017)
Publisher : Sanata Dharma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/mt.v12i1.944

Abstract

High carbon steel generally has a high hardness but lower ductility. To obtain a hard and ductile material, surface hardening can be done on a low carbon steel. Surface hardening can be achieved by hard chrome plating. The objectives of this research were: (1) Conducting the process of hard chrome plating on low carbon steel, (2) Knowing the increasing of surface hardness of low-carbon steel after the plating process in time variations, (3) Knowing the increasing of surface hardness of the low carbon steel after the coating process in anode-cathode distance variations. The specimens was made of low carbon steel. The size of the specimen were 40 mm in length, 35 mm in width and 6.8 mm in thickness. The variables measured were: (1) Coating time (t), (2) The distance between the cathode and anode in the coating process (l). After the coating process completed, the specimen surface hardness was measured by Vickers Hardness Tester. The results showed that up to 532 HV, low carbon steel hardness increased linearly at increasing time plating. At 120 minutes plating, the hardness also increased linearly at current densities up to 1.05 amperes/dm2. While at the current density of 1.1 amperes/dm2, the hardness increased significantly higher.
THE EFFECT OF BEACH ENVIRONMENT AND SEA WATER ON NICKEL CORROSION RATE AS A COLLIMATOR MATERIAL FOR THE APPLICATION OF BORON NEUTRON CAPTURE THERAPY Hardi Hidayat; Budi Setyahandana; Yohannes Sardjono; Yulwido Adi
JURNAL TEKNOLOGI REAKTOR NUKLIR TRI DASA MEGA Vol 21, No 3 (2019): October 2019
Publisher : Pusat Teknologi Dan Keselamatan Reaktor Nuklir (PTKRN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5384.641 KB) | DOI: 10.17146/tdm.2019.21.3.5587

Abstract

The purpose of this study is to determine the value of corrosion rate influenced by coastal environment and seawater to nickel as a collimator base material for the application of boron neutron capture therapy (BNCT). In this research, the authors used 99.9% pure nickel as the reference material. Corrosion testing was carried out to determine the rate of corrosion of nickel as a base material for BNCT. After the specimens were formed, the test specimens were then corroded for 12 weeks, with various conditions such as indoor, outdoor environment, static seawater, and moving seawater. The results of this study indicated that in corrosion testing with indoor condition, the corrosion rate values are 0.61-1.00 mpy. For outdoor condition, the corrosion rate is 0.89-1.34 mpy. Meanwhile, at static seawater conditions, the corrosion rate is 0.97-1.24 mpy. Lastly, for moving seawater condition, the corrosion rate is 1.64-1.91 mpy. The results showed that corrosion resistance was relatively the same for all nickel exposed to corrosion in the coastal environment. Therefore, in regards to corrosion resistance, using nickel as a collimator base material for BNCT applications is considered as safe.Keywords: BNCT, Nickel, Corrosion, Coastal Environtment, Sea Water
Sistem Interferometer Michelson untuk Mengukur Regangan pada Mesin Uji Tarik Budi Setyahandana; , Martanto; Ronny Dwi Agusulistyo; Agung Bambang Setyo Utomo
Jurnal Teknik Mesin (Sinta 3) Vol. 14 No. 2 (2013): OCTOBER 2013
Publisher : Institute of Research and Community Outreach, Petra Christian University

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

Abstract

Hasdone research Michelson interferometer system along with data acquisition, which is used for measuring strain in the tensile testing machine. Moveable mirror Michelson interferometer system mounted on the specimen clamp tensile testing machine. When the load is given in the test specimen, the specimen having the length and cause of any difference wave length of the laser beam. The wave length differences cause interference, and produce an interference pattern in the form of dark-light pattern (fringe). Interference pattern will be detected phototransistor sensor signal wave form, then recorded and processed by electronic circuits and interface microcontroller circuit, as well as converted and displayed as a displacement/increase in length (strain) of the test specimen. The experimental results obtained by the Michelson interferometer system that measures the movement (displacement) of the best maximum 9 mm. Displacement measurements using aluminium specimens produced a mean standard deviation of 0.023 (0.2%) and 0.074 (0.08%), and use of low carbon steel specimen rods produce a mean deviation of 0.08 (0.72%). appears that the system is very close to the measurement interferometer with ekstensometer. Measurement accuracy at the time of the test specimen is attached to be reduced compared to the measurements on the crosshead without load, due to a growing vibration machine.
PANDANGAN SISWA TERHADAP DESAIN BERBANTUAN KOMPUTER DALAM PELATIHAN SOLIDWORKS DI SMK NUSANTARA KUDUS Andreas Prasetyadi; I Made Wicaksana; Budi Setyahandana; I Gusti Ketut Puja; Stefan Mardikus; Raden Benediktus Dwiseno Wihadi; Heryoga Winarbawa; Rines Rines
ABDIMAS ALTRUIS: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 1 (2022): April 2022
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/aa.v5i1.3892

Abstract

An activity of collaboration between Mechanical Engineering Department of Sanata Dharma University and SMK Nusantara Kudus was conducted. The percepetion of High School Students of SMK Nusantara Kudus about Computer Aided Design was measured during the Solidworks Training as the main activity. Pre- and Post-Questionnaires were delivered among the 20 students joining the activity. Nineteen of them returned the questionnaires of 10 positive statements with 3 conditions of answers i.e. agree, disagree, and undecided. The results show that the students mostly are interested in designing manually and computer based. It also mentions that they appreciate CAD skills as their important future work skill. The activity did not affect the interest of the students in term of designing but helped them to be more engaged to the CAD.
Rockwell Hardness Testing of Pure Nickel Collimators for BNCT Application Erasmus Prakasita; Yohanes Sardjono; Budi Setyahandana
ASEAN Journal on Science and Technology for Development Vol. 36 No. 1 (2019): Vol 36 No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.157 KB) | DOI: 10.29037/ajstd.525

Abstract

In this study, Rockwell and Brinell hardness testing was used to examine material hardness. These methods were chosen because they are easy to carry out, relatively inexpensive, and almost all sizes and shapes can be tested, in which nickel hardness before and after centrifugal casting are identified and compared. These tests enable the determination of the hardness numbers of nickel collimators using for boron neutron capture therapy. The samples were five nickel plates with a dimension of 4.5 × 4.5 cm and five collimators. The collimators were cylindrical and made using centrifugal casting. The basic principle of the hardness test was to apply loading on the object being tested. The Rockwell test was used to assess the material's hardness from the difference of indentation depth, while the Brinell test was used to determine the hardness from the diameter of indentation. From the results of this test, the hardness number of nickel before centrifugal casting is 168.53 BHN or 86.13 HRB, while the hardness number after centrifugal casting is 115.68 BHN or 64.84 HRB. It can therefore be concluded that centrifugal casting decreased nickel hardness.
Gamma Radiography Testing of Collimators for Boron Neutron Capture Therapy Deo Clinton Maranatha Simangunsong; Yohannes Sardjono; Budi Setyahandana; Sigit Santosa; Fajar Nurjaman
ASEAN Journal on Science and Technology for Development Vol. 36 No. 1 (2019): Vol 36 No 1 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (524.418 KB) | DOI: 10.29037/ajstd.567

Abstract

Boron neutron cancer therapy is a cancer treatment method that encompasses epithermal neutron irradiation of boron delivered to tumor cells. Using collimators, fast neutrons are moderated into epithermal neutrons. When radiation is performed, neutron beams are emitted and filtered by a collimator. In this study, 12 collimators used in the BNCT process were inspected for their quality, in terms of defects or flaws. The inspected collimators were manufactured by centrifugal casting and were composed of 99% pure nickel. They had the following dimensions: height of 145 mm, outer diameter of 190 mm, inner diameter of 160 mm, and thickness of 15 mm. The inspection method used was gamma radiography testing with an Iridium-192 gamma source. Using a single wall single image technique, the collimators were exposed for 30 seconds. Six FUJI films were placed behind the object to record the resulting images, which showed light or dark areas on each collimator, the latter of which indicated porosity or flaws. Based on these images, collimators 1 and 5 were found to contain cracks, and porosity was identified in almost all of the collimators. It is suggested that both collimators with cracks be recycled, while the collimators with porosities should be investigated further to determine their suitability for boron neutron cancer therapy.
The influence of artificial aging on tensile properties of Al 6061-T4 Freddy Saputra Romamti-Ezer Taebenu; Heryoga Winarbawa; Rines Rines; Budi Setyahandana; I Made Wicaksana Ekaputra
International Journal of Applied Sciences and Smart Technologies Volume 04, Issue 01, June 2022
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v4i1.4816

Abstract

This paper presents an explanation related to experimental testing in the form of the tensile properties of Al 6061. Al 6061 was heat treated by the precipitation hardening method. The precipitation hardening consisted of T4 and T6 treatment. Al 6061 samples were heat-treated at a temperature of 430°C for 2 hours, then cooled slowly at room temperature. The T4 was conducted at a temperature of 530°C for 2 hours, followed by rapid cooling in a water medium and natural ageing at a temperature of 70°C for six days. Temperature T6 is the final process of applying precipitation hardening treatment to Al 6061. Temperature T6 is carried out at 530°C for 2 hours, then cooled rapidly in a water medium and continued with artificial ageing at 190°C with a variation of ageing time for 3 hours, 5 hours, and 7 hours. The effect of the applied treatment was observed to increase the maximum strength value of the tensile test of Al 6061.
Obtaining the Efficiency and Effectiveness of Fin in Unsteady State Conditions Using Explicit Finite Difference Method Petrus Kanisius Purwadi; Budi Setyahandana; R.B.P. Harsilo
International Journal of Applied Sciences and Smart Technologies Volume 03, Issue 01, June 2021
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v3i1.3280

Abstract

This paper discusses the search for fin efficiency and effectiveness in unsteady state conditions using numerical computation methods. The straight fin under review has a cross-sectional area that changes with the position x. The cross section of the fin is rectangular. The fins are composed of two different metal materials. The computation method used is the explicit finite difference methods. The properties of the fin material are assumed to be fixed, or do not change with changes in temperature. When the stability requirements are met, the use of the explicit finite difference methods yields satisfactory results. The use of the explicit finite difference methods can be developed for various other fin shapes, which are composed of two or more different materials, time-varying convection heat transfer coefficient, and the properties of the fin material that change with temperature.
Co-Authors A. Prasetyadi Achilleus Hermawan Astyanto Agung Bambang Setyo Utomo Budi Sugiharto Christianto, Yohanes Eko Deo Clinton Maranatha Simangunsong Doddy Purwadianto Erasmus Prakasita Fajar Nurjaman Freddy Saputra Romamti-Ezer Taebenu Gilang Argya Dyaksa Hardi Hidayat Heryoga Winarbawa I Gusti Ketut Puja I Made Wicaksana I Made Wicaksana Ekaputra Jaladri, Stefano Litaay, Arnold A. I. Lukiyanto, Y.B Martanto Martanto Mustain, Fahra Diky Petrus Kanisius Purwadi Pratama, Nico Ndaru R.B.P. Harsilo Raden Benediktus Dwiseno Wihadi Rines Rines Rines, Rines Ronny Dwi Agusulistyo Roshanti, Fatma Seen, Michael Sigit Santosa Stefan Mardikus Stefan Mardikus Wibowo Kusbandono Yohanes Eko Christianto Yohanes Sardjono Yohannes Sardjono Yohannes Sardjono Yulwido Adi