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All Journal JTTM: Jurnal Terapan Teknik Mesin Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Proksima
M. Dalil
Department Of Mechanical Engineering, Universitas Riau, Indonesia
Aerospace Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)

 1 
Calibration Of Vickers Hardness Test PT.Tenaris Seamless Pipe Indonesia Jaya Cilegon Using Standar Blok Dodi Sofyan Arief; Muftil Badri; M. Dalil; Agus Reforiandi; Agus Surya Permana
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 64 No 3 (2020): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (492.706 KB) | DOI: 10.36842/jomase.v64i3.203

Abstract

A calibration is an activity to determine the conventional validity of the appointment value of measuring instruments and measuring materials by comparing them to standard measurements that are traceable to national and international standards for measurement units and or international and certified reference materials. The calibration is generally a process of adjusting the output or indication of a measurement device to match the magnitude of the standard used in certain accuracy. The purpose of this paper is to find out the vickers hardness test calibration whether the machine running normally or there is a problem with the device. A case study was conducted in PT. Tenaris SPIJ, Cilegon, Indonesia. A vickers hardness testing in the case study has its own reference standard, namely ISO 6507-2: 2018 Metal material - Hardness Test Verification and Calibration of the test machine. The vickers hardness test equipment is a machine to conduct tests using a diamond pyramid with a plane angle of 136°, by means of an emphasis by an indentor that results in a trace or indentation on the surface of the test object. The vickers hardness testing is abbreviated as HV or HVN and also known as Diamond Pyramid Hardness Test (DPH). Result of calibration in the case study was found the repeatability value on vickers hardness testing machine of 32 HV 10 and the error value of ±3%.
Management of Motorcycle Workshops of SMEs Scale Based on Information System Dodi Sofyan Arief; Anita Susilawati; Johar Simaskot; Muftil Badri; M. Dalil
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 47 No 1 (2017): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4025.546 KB) | DOI: 10.36842/jomase.v47i1.177

Abstract

The good workshop management must also be supported by a properly administration, in order to record all the resources that become workshop assets. Moreover, the motorcycle workshop also conducts spare parts sales to complete the replacement needs of broken vehicle spare parts. This study aims to analyze and design a workshop information system for Small and Medium Enterprises (SMEs) engaged in the field of repairing of motorcycle. Generally, the SMEs scale of motorcycle workshops in this research still uses a simple management system and manually in presenting the data required by the workshop. This it make difficult and inconvenient for the owner of a SMEs scale of motorcycle workshop. Sequence, it is necessary to optimalize the management system from the simpler manual system to be computerized. Stages of the method in this study: (1) survey of general workshop management SMEs scale, (2) do analysis of data obtained during the survey and provides input for workshop management based on 5S method, (3) to design and create information systems and databases using PHP (Hypertext Preprocessor) as the programming language and MySQL as the database. The approach of the 5S (Sort, Straighten, Shine, Standardize, Sustain) and creating an information system can manage equipments and properly administration in SMEs scale of motorcycle workshops. Therefore, they can help to optimize streamline the services and administration activity of SMEs scale of motorcycle workshops.
Making roundness measurement applications and control systems on the Roundness Tester Machine Dodi Sofyan Arief; Eko Jadmiko; Adhy Prayitno; Muftil Badri; M. Dalil
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 63 No 3 (2019): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (671.689 KB) | DOI: 10.36842/jomase.v63i3.141

Abstract

Dial indicator is a comparison device usually used in industrial activities, especially in production. To make measurements at this time must be supported by technology that can facilitate operators when using it and when analyzing measurement results. Involving the programme and microcontroller are a solution to developing in roundness measurement, and then the results can be more accurate or thorough between the readable values read from the measuring instrument with the actual value of varying the amount of data. Roundness application is a program that can input measurement data automatically and can do calculations directly. Then, it can display a reference circle, a table that calculates the values of X, Y, R, X’, Y’, R’, Roundness Deviation, Run out Concentricity or a shift in the center point and also the center point shift or Theta. In measuring roundness, the test object is used the Standard Mandrel which has been certified by PT. Global Quality Indonesia, by determining three points or positions, namely in the first position the amount of data is 180, in the second position the amount of data is 90 and in the third position, the amount of data is 60 with a rotating speed of 15 mm/s. The results of the reference circle can be seen in each calculation in each position, in the second position the roundness deviation values are approaching of the Mandrel.
Control of Automatic Beverage Bottle Filling Process Using P and Team Viewer IoT Imnadir Imnadir; Abdul Khair Junaidi; M. Dalil
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 66 No 2 (2022): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (999.231 KB) | DOI: 10.36842/jomase.v66i2.309

Abstract

The development of an on-line process control system in the Industry is a major requirement in the context of the efficiency of machines and improving the quality of production during the Covid-19 period. As well as in the learning system and practicum students are required to be able to study independently, and lecturers must be able to develop themselves in on-line learning methods. The on-line learning process is not just to transfer learning modules to students, but must be able to guide students in an unlimited time, whenever students need an explanation of the material provided. TeamViewer is an application that provides a solution that is used to remotely control another PC or laptop. By knowing the ID and password are provided by TeamViewer on the PC that want to remote. Then, it just entered the TeamViewer application installed on the PC. The use of this team viewer was tested against the control of the beverage bottle filling process. The result is that by using Android the process of controlling beverage bottle filling. It turns out that, it can be operated to fill beverage bottles for different size, namely by setting the data delay on the program 3.2 seconds for the 120 ml bottle size, 4.0 seconds for the 200 ml bottle size, and 5.0 seconds for the bottle size of 300 ml.
The Effect of Short and Long Fiber on Impact Strength in High Density Polyethylene-Fiberglass Composite Elgi Oki Andeska; M Dalil; Dodi Sofyan Arief
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 66 No 3 (2022): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v66i3.315

Abstract

This study aims to investigate the HDPE (High Density Polyethylene) reinforced with fiberglass to increase strength and toughness into a composite that has the potential to replace ABS (Acronitrile Butadiene Styrene). The composites were made with variations in composition based on volume fraction. The HDPE as matrix and fiberglass as reinforcement through the mixing method, molded in a heating machine (T=140°C), pressed with a pressing time of ±45 minutes. Then, the specimens were cut according to ASTM D6110 standard, and the Charpy impact test was performed. The impact of long fiber for the HDPE composition of 70%vol and fiberglass 30%vol, the average impact strength was 176.838 Joule/mm². The long fiber for the HDPE composition of 80%vol and fiberglass of 20%vol, the average impact strength was 208.08 Joule/mm². The impact of short fiber for HDPE composition of 70%vol and fiberglass of 30%vol, the average impact strength was 72.858 Joule/mm². The short fiber for HDPE composition 80%vol and fiberglass of 20%vol, the average impact strength was 33.394 Joule/mm². Based on research of ABS mixture at 40%/60%vol mixture variation, the average impact strength was 24.8 Joule/mm2 and the 20%/80%vol mixture variation, the impact strength was 18 Joule/mm². In conclusion, the impact strength of the ABS was lower than the HDPE-Fiberglass composite. Therefore, the HDPE-Fiberglass composite can be used as a substitute for ABS for car bumpers.
Co-Authors Abdul Khair Junaidi Achmad Jusuf Zulfikar Adhy Prayitno Agus Reforiandi Agus Surya Permana Anita Susilawati Dodi Sofyan Arief Dodi Sofyan Arief Dodi Sofyan Arief Dodi Sofyan Arif Eko Jadmiko Elgi Oki Andeska Imnadir Imnadir Indra Hermawan Jhenris Ivanly Johar Simaskot Joko Joko M.Y. Yuhazri Muftil Badri Muhammad Idris Weriono