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All Journal Rekayasa Mesin JTT (Jurnal Teknologi Terpadu) KACANEGARA Jurnal Pengabdian pada Masyarakat Manutech : Jurnal Teknologi Manufaktur Jurnal Teknik Mesin Indonesia Infotekmesin Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Sains dan Teknologi Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Prihadianto, Braam Delfian
Universitas Gadjah Mada
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

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PENGARUH JARAK LASER HEAD TERHADAP DIAMETER SPOT PADA PEMOTONGAN POLYMETHYL METHACRYLATE MENGGUNAKAN MESIN LASER CUTTING Prihadianto, Braam Delfian; Nugroho, Gesang
Infotekmesin Vol 9, No 01 (2018): Infotekmesin, Januari 2018
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2693.737 KB) | DOI: 10.35970/infotekmesin.v9i01.8

Abstract

Laser cutting is one of the processes used as an alternative to conventional machinery that has goodcutting qualities and minimizes product damage. The workings of laser cutting is to direct the output of high laser power on the material to be cut, the material then melts, burns, evaporates by gas, and produces edges with a good quality surface. This study aims to determine the effect of laser head distance from the laser cutting machine on the spot diameter produced on the polymethyl methacrylate (PMMA) material. This study used a laser machine with 60 watts of power and variation of laser head distance with an interval of 1 mm at a distance of 1-28 mm. Spot diameter value was gained measurement from using stereo zoom microscope with 30 X magnification and mapping. The result shows that the spot diameter was 0,229 - 0,990 mm. The factors that affect the value of spot diameter is the laser power used and laser head distance from the material.
Analisis Kekuatan Miniatur Sasis Bus Hasil Teknologi Fused Deposition Modelling dengan Metode Elemen Hingga Braam Delfian Prihadianto; Ari Reza Koswara
Manutech : Jurnal Teknologi Manufaktur Vol. 12 No. 01 (2020): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.141 KB) | DOI: 10.33504/manutech.v12i01.129

Abstract

Replica is an imitation of an object that is scaled down to a specified scale. Replica manufacturing can be done by layer manufacturing technology so that it is more efficient and gets products similar to the originals. At present, the information about the results of the experimental testing process by computers on replica 3D models is still very limited. It is important to know that the replica have the expected quality. This study was conducted to determine the replica strength of the Hino RN 285 bus chassis 1:19 scale with PLA and AISI 1020 material. The calculations included stresses and deflections that occurred on the replica bus chassis due to the load from the replica cabin of 25.506 N. The study was conducted using Solidworks 2018 application for static load simulation process and for knowing the maximum stress and deflection that occurred. The simulation results obtained a maximum strenght value of 9,628 MPa. Deflection occurs at the front overhang, wheel base, and rear overhang with a maximum value occurs at the rear overhang of 0.7696 mm and causes stress distribution on the chassis frame of the rear overhang at 2.407 MPa. The maximum stress of the test results has a value smaller than the yield stress of the material and the deflection that occurs is below the critical deflection range, so it can be concluded that the replica model of the bus chassis is safe.
Analisis Lifetime Dan Kerusakan Rear Leaf Spring Truk Iveco AD 410 Untuk Meningkatkan Ketepatan Perencanaan Penggantian Muhammad Imam Yusuf; Braam Delfian Prihadianto
Infotekmesin Vol 13 No 1 (2022): Infotekmesin: Januari, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i1.1055

Abstract

Components in a unit have a certain lifetime, therefore maintenance and rejuvenation are needed to maintain performance, including leaf springs. The rear leaf spring component replacement of the Iveco AD 410 truck unit in the MIFA Project was not conducted as scheduled. The purpose of this study is to improve the planning accuracy of the rear leaf spring component replacement for the Iveco AD 410 truck on the MIFA Project. The methods used in this study were qualitative and comparative quantitative method and also reliability centered spares using the normal distribution processing method. The test data used were work order data for 2018-2020 and replacement recommendation data from the manufacturer. The results of the analysis of this study indicate that the average lifetime of the rear leaf spring component is shorter than the recommended lifetime from the manufacturer with 18% decrease in component efficiency. This is caused by extreme road conditions and the lack of maximum maintenance on the leaf spring components.
Pengaruh Besar Butir dan Temperatur Pemanasan Pasir Cetak Terhadap Sifat Mekanis Cetakan Braam Delfian Prihadianto; Radhian Krisnaputra; Suryo Darmo; Aldi Prabowo
Infotekmesin Vol 12 No 1 (2021): Infotekmesin: Januari 2021
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v12i1.471

Abstract

Casting is a manufacturing process that uses molten metal and molds to obtain a product that is closer to its final geometry. The quality of casting products is influenced by several factors and one of the important factors is the mold. The sand that is often used in making molds is resin coated sand, since this sand will bond to one another if it is heated. The research focus is determine the effects of grain size and heating temperature of resin coated sand on the mechanical properties of the mold which include compressive, shear and tensile strength. This study used an experimental method with large parameters of resin coated sand and heating temperature. From the test results, the highest compressive, shear and tensile strength values are Produced by sand with grain size less than 300 µm are identified.. The high heating temperature makes the bonds between the sands stronger and the strength value is higher..
PENGARUH PENGATURAN FILL DENSITY TERHADAP SIFAT MEKANIS POLYLACTIC ACID HASIL TEKNOLOGI FUSED DEPOSITITION MODELLING Braam Delfian Prihadianto; Suryo Darmo; Radhian Krisnaputra
Jurnal Teknologi Terpadu Vol 10, No 1 (2022): JTT ( Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v10i1.1406

Abstract

Along with advances in science and technology in creative industry, the production process no longer relies on manual creativity, but develops and expands the application of technology to simplify and accelerate the production process. One example of the creative industry sector that applies technological developments is the miniature industry. A new technology that is starting to be in demand among miniature manufacturers is the Fused Depositition Modeling (FDM) technology. It is a method using solid base rapid prototyping technology with an extrusion process and is a solution to the above problems. Polylactic Acid (PLA) is one of the materials used by miniature manufacturers, because this material is included in the aliphatic polyester group which is made from α-hydroxy acid and has degraded properties, making this material relatively safer for health and the environment. The research focuses on the mechanical properties of FDM technology with PLA filament materials, especially tensile and bending strength. This study used an experimental method with reference to the FDM machining parameters with a variation of the fill density from 0.1 to 1.0. Based on the results of experiments and tests that have been done, the tensile strength values are 29.063 - 36.215 MPa and the bending strengths are between 42.520 - 80.315 MPa. Therefore based on the test results it can be concluded that the fill density parameter affects the tensile and bending strengths produced by FDM technology with PLA material.
APLIKASI TEKNOLOGI 3D PRINTER DALAM RANGKA PENGEMBANGAN PEMBUATAN KOMPONEN MINIATUR DI KARANG TARUNA DUSUN BENDUNGAN Braam Delfian Prihadianto; Suryo Darmo
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 4, No 1 (2021): Januari
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v4i1.739

Abstract

Replica is an imitation of an object in a size that is greatly reduced by the level of precision and detail that resembles the original object. One of the replica commonly made is a replica of transportation, especially buses, and one of the producers is Karang Taruna Dusun Bendungan, which is located in Karangmojo Subdistrict, Gunung Kidul District. Making replica so far has been done manually by relying on the cutter as a forming tool. In making manuals there are several obstacles faced, namely difficulties when making molds which include cowl molds, seat molds, AC cover molds and other parts. In addition, making miniature manually has disadvantages such as not being precise in shape and size with the original object and if there is a small change in a particular part, then it must be made from scratch again. Based on these constraints the team provided a solution by making a 3D printer machine that could be used to support bus replica production. Making a 3D printer machine with dimensions of 48 x 46 x 44 cm got a positive response.  In addition, the conducted training were enthusistically participated by the members. Utilization of 3D printer machines greatly helps the production process and increases the efficiency of time by 76% at the stage of making master prints.
THE EFFECT OF HARD FACING PROCESS ON THE HARDNESS AND MICROSTRUCTURE OF BUCKET TOOTH FOR DIFFERENT MANGANESE CONTENT Suryo Darmo; Braam Delfian Prihadianto
Jurnal Rekayasa Mesin Vol. 13 No. 3 (2022)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v13i3.1222

Abstract

High hardness and wear resistance of bucket tooth are required in the face of abrasion and impact. High manganese steel is hard and ductile, making it more suitable for bucket tooth materials. Bucket tooth can wear out and need to be returned to their original size, so that bucket tooth that have been eroded must be coated with a hard material, using a hard facing process. In this study, the hard facing process was carried out in bucket tooth containing 10.4%, 11.60%, 12.70%, 13.60%, and 14.60% men (manganese) elements, using hard facing electrodes of the AWS A5.13 (JIS Z 3251). Hard facing process was using SMAW welding with an average heat input of 1087.43 J/mm. The hard facing process shown that the hardness of weld metal was always lower than of HAZ (Heat Affected Zone) and base metal. The hardness of the weld metal was almost the same for all types of the bucket tooth, which was about 233.478 HVN.
RANCANGAN SISTEM HIDROLIK PADA FRONT ATTACHMENT ALAT PERAGA MINI EXCAVATOR Purwanto , Sigit; Aisyah , Nyayu; Prihadianto, Braam Delfian; Krisnaputra , Radhian; Wismo , F. Eko; Bahiuddin , Irfan
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1729

Abstract

As one of the heavy equipment, an excavator is used to facilitate construction work and streamline time and energy. Hydraulic excavators are widely used in construction, mining, quarrying, and forestry applications. A hydraulic excavator is a type of heavy equipment that has several functions such as digging, loading, lifting, scraping, grading, braking, etc. One of the products which is developed by the Mechanical Engineering Department of Vocational School (SV-UGM) is the Mini Excavator. Mini Excavator has a function as excavators in general. A smaller size makes it easier to operate and apply in the field are more compact and do not require a large area. This equipment is expected to be the right teaching aid in supporting the learning process of students of the Heavy Equipment Management and Maintenance Engineering Study Program in the Mechanical Engineering Department. For the learning process to be optimal, the equipment used should be optimal. Therefore, in this research, the design and construction of the Traction Drive System for Backhoe Type Hydraulic Excavators will be carried out and some testing will also be conducted to know the performance of the mini excavator
PREDIKSI UMUR DAN KEANDALAN RIPPER TIP PADA BULLDOZER CATERPILLAR D10T DENGAN METODE WEIBULL Arifin, Fadhilah Akmal Rofiq; Prihadianto, Braam Delfian; Sugiyanto, Sugiyanto; Bahiuddin, Irfan
Jurnal Teknologi Terpadu Vol 12, No 1 (2024): JTT (Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v12i1.1860

Abstract

Ripper tip is one of the hard steel-based components on heavy equipment with a function to protect the ripper tip when breaking the density of soil and rock material (ripping). Friction between rock surfaces and ripper tips results in wear on ripper tips that require periodic replacement. Caterpillar D10T bulldozer owned by PT. XYZ underwent replacement ripper tip components that did not match the recommended age. This study aims to improve the accuracy of replacement planning and analyze the reliability level of ripper tip components. This study used the Weibull distribution method in analyzing the data. The data used is data on ordering and replacing ripper tip components from 2019 to 2021. The object of research was carried out on three units of Caterpillar D10T bulldozers used by PT. XYZ in an open pit mining project in Batulicin District, Tanah Bumbu Regency, South Kalimantan Province. This study shows that the average age of components in the three research objects has differences from the average life of ripper tip components on bulldozers A, B, and C is 369.75 hours, 329.63 hours, and 291.39 hours. The reliability of ripper tip components on the three bulldozers showed a decrease with the increase in operating time while the failure rate of the ripper tip components of the three bulldozers showed an increase with the increased operating time.
Analisis keausan slewing gear 242-UB1 area unit ship unloader PT Solusi Bangun Indonesia Tbk Fikry Alvianto Kurniawan, Fikry; Kurniawan, Stephanus Danny; Handoko; Prihadianto, Braam Delfian
Jurnal Teknik Mesin Indonesia Vol. 19 No. 1 (2024): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v19i1.440

Abstract

Ship Unloader is a unit of equipment to move materials from marine units to other units related to the production process by performing travel movements by slewing gear components. The problem of damage in the slewing gear began after inspecting and replacing components. The gear tooth on the slewing gear experiences abnormal wear. This study aims to analyze the wear of the slewing gear component 242-UB1 in the Ship Unloader unit area at PT Solusi Bangun Indonesia Tbk. The research methods are field surveys, data collection, and fishbone diagrams. Research materials and tools include dial indicator, filler gauge, lead wire, slewing gear components, and vernier calliper. Data was obtained from monitoring the unit and equipment with RCA analysis. The analysis showed that backlash was a significant contributing factor to wear with the worst value of 2.0 mm. In addition, the percentage of wear on the top gear reached 25%, which means it has reached the red zone limit. How to reduce potential wear due to backlash by regular monitoring of the backlash gap online through sensors. In conclusion, the study revealed that component wear is closely related to the backlash phenomenon. In addressing this issue, regular monitoring, timely repairs, and selection of appropriate materials and lubricants are considered as measures that can reduce wear potential and increase component life.
Co-Authors Achmad Fikry Aisyah , Nyayu Aisyah, Nyayu Aji , Angga Prasetio Aji, Angga Prasetio Aldi Prabowo Alyaa Sekar Khairunnisa Anggoro Hasan, Dani Ardean Kurnianto Prayitno, Yosephus Ari Reza Koswara Arifin, Fadhilah Akmal Rofiq Bahari, Galuh Bahiuddin, Irfan Benidiktus Tulung Prayoga Dani Anggoro Hasan Dani Anggoro Hasan Dovan Ndaru Ananda Eka Legya Frannita Felixtianus Eko Wismo Winarto Fikry Alvianto Kurniawan, Fikry Gesang Nugroho Handoko Harjono Harjono Harjono Irsal Revanza Kurniawan, Stephanus Danny Luthfi Wifaqi, Ahmad Naufal M.Burhanudin Muhammad Imam Yusuf Nur Esa, Suhada Nurul Hidayat, Anisa Oktavian, Dicky Purwanto , Sigit Radhian Krisnaputra Septian, Miko Setyawan Bekti Wibowo Setyawan, Wawan Budi Sugiyanto - Suhada Nur Esa Surojo, Surojo Suryo Darmo Suryo Darmo Widada, Reza Ananda Wismo , F. Eko Wiyono, Al Difa Naufal Akmal