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Politeknik Negeri Ujung Pandang Kampus 1 Gedung Administrasi Lantai II Jalan Perintis Kemerdekaan KM.10 Tamalanrea Makassar 90245
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INTEK: Jurnal Penelitian
Published by Politeknik Negeri Ujung Pandang
ISSN : 23390700     EISSN : 26155427     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Engineering
INTEK is a journal managed by the Journal and Publication Development Unit of Ujung Pandang State Polytechnic, which is published twice a year, in April and October. The journal INTEK has also been indexed. The INTEK Journal accepts research scripts in the fields of technology and engineering such as: Electrical, Mechanical, Civil and Chemical Engineering.
Arjuna Subject : Umum - Umum
Articles 211 Documents
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Analysis of The Influence of CNC Milling Macro Programs and Sub-programs Mazak on The Effectiveness Manufacturing Cover of Pressure Cylinder Using CAM Amaluddin, Muh. Nurul Haq; Jamaludin, Ridwan; Mahdali, Al
INTEK: Jurnal Penelitian Vol 11 No 1 (2024): April 2024
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v11i1.4657

Abstract

CNC machines allow computer programming to control the movement and actions of the machine, enabling more precise and repeatable production. However, in operating a CNC machine, good and efficient programming is essential. To optimize the use of CNC machines, it is necessary to optimize the number of NC program blocks that include the concept of macros and sub-programs. An effective CNC program, along with the proper use of macros and sub-programs, can speed up the production process, reduce human error, and increase accuracy. The research method used is comparative research by comparing using macro programs and manual programming, in this case comparing the number of solid trajectories and the number of program lines in the design using the simulation method using the Autodesk Fusion 360 application. So that the optimal number of movements will be obtained through the row value in the NC program. Macros and sub- programs allow users to easily change or modify CNC programs without having to rewrite the entire program. This increases flexibility in producing various types of products. It is concluded that optimization using macro and sub-programs provides a significant reduction in the number of program blocks in the case of the machining process for manufacturing the cover of pressure cylinder. This reduction in program blocks can help improve efficiency and sustainability in the development of modified machining processes.
Plucker Machine Design on Halal Mobile Poultry Slaughterhouse (MPSH) Prototype Satria, Dhimas; Dwinanto, Dwinanto; Pinem, Mekro Permana; Santoso, Muhammad Iman; Nazwa, Intan
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4468

Abstract

Mobile Poultry Slaughterhouse Halal (MPSH) is a mobile facility designed to carry out the process of slaughtering chickens in accordance with halal principles in the Islamic religion. Making a prototype of this tool aims to test the functionality of a system or product. The machine development designed in this research uses a drive (transmission) as a combination of pulley and v-belt. The reason for using a drive system as a pulley and v-belt is that it feels easier and more efficient in the work process. This research aims to analyze the calculation of pulley and v-belt sizes suitable for the plucker machine that was developed. This research uses an experimental design method, namely carrying out measurements, observations, and calculations of the technical specifications of the machine, then analyzing the data to obtain an idea of the machine's performance, which ultimately can provide an idea of the suitability of the machine. The research results obtained: (1) pulley sizes 100 mm and 175 mm in diameter, made from ST37 steel. (2) Required v-belt length = 1,253.95 mm. (3) V-belt axis distance = 426.25 mm. (4) The circumferential speed of the driving pulley vP = 10.99 m/s. (5) The circumferential force that arises Frate = 111.37 N. (6) The number of belts used is 1 belt.
Comparison of The Pull Strength of Sisal Lamina Matrix Polymer Fiber Composite Materials (Agave Sisalana) Fikran, FIkran; Simon, Christof Geraldi; ka’ka, Simon
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4582

Abstract

Composites are one of the material engineering technologies developed today because composites can combine several material properties that differ in characteristics into new properties by the planned design. The purpose of this study was to determine the mechanical properties of the influence of the combined arrangement of lamina angle variations and the composition of fiber and matrix mixtures. This study uses polyester resin, catalyst, and sisal fiber as materials in the manufacture of composite materials. In specimen manufacturing refers to ASTM D 638-02 type 3 test standard for tensile tests. The tensile test results of sisal fiber lamina composite materials assuming a composition ratio of 5% fiber and 95% resin produce maximum tensile stress of m = 16.9854 N/mm2 and a maximum strain of ɛ = 4.5232% while assuming a composition ratio of 15% fiber 85% resin produces maximum tensile stress of sm = 40.1422 N/mm2 and maximum strain of ɛ = 8.9744 %, Based on the test results, the addition of fiber mixture composition increases the tensile strength and toughness of the material. The composition of 5% fiber 95% and 15% fiber 85% resin (15S-85R)produces a maximum tensile stress of sm =  45.1823 N/mm2 and a maximum strain of ɛ = 9.6849 % with a maximum load Fm = 10902.4996 N. The more fiber contained in the sisal fiber lamina composite material, the higher the tensile stress produced, this shows the tension is directly proportional to the number of fibers contained in the composite.
Development of DCS SCADA Module for Factory I/O Pick and Place XYZ Case Based on Siemens S7-1200 PLC and HMI Excel Link Azis, Muhammad Fadli; Lutfi, Lutfi; Amiruddin, Muh. Syaftar
INTEK: Jurnal Penelitian Vol 11 No 1 (2024): April 2024
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v11i1.4734

Abstract

The DCS SCADA course plays a significant role in the latest curriculum introduced at Politeknik ATI Makassar in 2022. However, the utilization of real plant instrumentation in industrial environments often proves costly. To overcome this cost barrier, this research develops a DCS SCADA module employing an industrial simulation application, namely the virtual plant Factory I/O, with a case study involving Pick and Place XYZ. This scenario entails the placement of boxes onto pallets using a three-axis robotic manipulator. The module utilizes the PLC Siemens S7-1200 as the control device and HMI Excel Link as the supervisory device. To detect the boxes and parts, two retroreflective sensors are employed, with three conveyors facilitating transportation and a robotic pick and place arm moving in three XYZ axes. Through integrated procedural testing, the system's performance evaluation demonstrates a 100% success rate (OK status).
Performance Test Of Myristica Fragrans Dryer Using A Heat System On An Electric Stove Hardinsi, Festo Andre; Subhan, Muh.; Lobo, Osmar Buntu
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4482

Abstract

Fakfak Regency is one of the regencies of West Papua province located in Indonesia. Fakfak Regency is also known as an abundant producer of myristica fragrans and seeds so that Fakfak City is often dubbed as the city of myristica fragrans. However, there is a problem that often occurs in myristica fragrans farmers, namely the occurrence of aflatoxin attacks.  One way to deal with aflatoxin attacks caused by fungi and Aspergillus flavus is to dry myristica fragrans seeds.  The goal to be achieved in this study is to determine the relationship between the drying time of myristica fragrans seeds with the amount of moisture content using a blower on an electric stove. As well as to find out the analysis of moisture content tests based on SNI standards from the results of drying myristica fragrans seeds using a blower on an electric stove. The method used in this study is the design of a myristica fragrans seed dryer using an electric stove. This design uses an electric stove as a drying heat source and uses a blower to suck the heat temperature from the electric stove. The results of this study are The relationship between drying time and moisture content in myristica fragrans drying equipment using an electric stove is y = -3.2034x + 44.795 with R2 = 0.9463. Based on SNI standard 01-0006-1993, the appropriate moisture content value in a myristica fragrans seed dryer using an electric stove is, within 10 hours a moisture content value of 9.77% is obtained and within 13 hours a moisture content value of 6.28% is obtained
Monitoring the Condition of the 20 kV Switching Substation in the Tual Rayon Saumlaki Area Pangkung, Andareas; Sonong, Sonong; Saini, Makmur; Djalal, Muhammad Ruswandi; Jamal, M Fachmi
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4626

Abstract

A 20 kV cubicle is a set of electrical equipment installed in a distribution substation as a distributor, circuit breaker, connector, controller, and protection system for the 20 kV voltage power distribution. The frequent issue in these cubicles is corona discharge on electrical equipment, which is a phenomenon occurring when the air around conductors or conductive materials becomes ionized, resulting in the release of charges that can lead to insulation failure in the equipment. The consequences are severe as it can damage the equipment inside the cubicle and cause power losses. This research analyzes the influence of humidity, temperature, sound, and light conditions inside the cubicle to identify the symptoms of corona discharge in the 20 kV cubicle and its accessories. The goal is to create a tool that can address and anticipate the issues related to corona discharge caused by the effects of humidity, temperature, sound, and light.
Tensile Analysis of Epoxy Resin Composite Material with Petung Bamboo Strip Reinforcement Bethony, Frans Robert; Pineng, Marthina; Paliling, Formanto; Simon, Christof Geraldi
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4578

Abstract

This study aims to analyze the optimal tensile strength of epoxy resin composite material with woven bamboo strips (Dendrocalamus asper). Petung bamboo is made in strips measuring 0.01 cm, 0.1 cm wide, 45 cm long and then woven then soaked in brackish water with variations of soaking for 0, 1, 2, 3, and 4 weeks with river water salinity levels of 10, 20 and 30%. The printed composite material with a composition of 60% epoxy resin and 40% catalyst as a hardener with  1, 2, and 3-layer woven strips and held for 24 hours. Composite material printing by hand lay-up method. For 1 layer of woven composite material, epoxy resin is poured into a mold then woven petung bamboo strip and covered with epoxy resin pressed for 24 hours. The composite material is removed from the molded container and then left in an outdoor airtight room for one week. Composite materials are repaired to ascertain whether there are still defects or no longer exist, especially on the surface of composite materials. The next process is the manufacture of test samples, for tensile tests based on ASTM (D638-02) Before the test is carried out, the sample is repaired first to ensure that the sample is in a standard state to be ready for testing.  Test results of optimal tensile strength of composite materials with woven reinforcement of petung bamboo strips without immersion of 1 layer (40.22 MPa), 2 layers (50.13 MPa), and 3 layers (60.07 MPa). The optimal tensile strength of composite materials with 1 layer of webbing and soaking time of 3 weeks (51.08 MPa) has increased (19.12%). The optimal tensile strength of composite materials with 2-layer webbing and soaking time of 2 weeks (61.05 MPa) has increased (20.69%). The optimal tensile strength of composite materials with 3-layer webbing and soaking time of 2 weeks (70.15 MPa) has increased (19.08%). Keywords: composite material, bamboo petung, woven strip, brackish water, tensile strength
Implementation of the North West Corner Rule and Loop Construction Method to Minimize Material Distribution Cost on Ameroro Dam Access Road Project (Package II) Muin, Suriati Abd.; Watono, Watono; Gani, Ishak; Muhammad, Aulia; Sudarmawanty, Sudarmawanty
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4615

Abstract

Construction projects consist of several work items and require resources to achieve the success of project work including materials and costs. The material required in large quantities in the implementation cannot always be fulfilled by one material source alone, therefore several material sources are needed so that the material demand needs can be met. Especially if it consists of several project locations and must be fulfilled by several material sources. This study aims to minimize the distribution cost of class A LPA material from the source of material collection, namely in Konaweha, Pondidaha and Moramo to the Ameroro Dam Access Road project site (Package II), namely the Entrance to the Dam Segment 1, Segment 2 and Segment 3. The results obtained by implementing the North West Corner Rule and Loop Construction methods can minimize the cost of material distribution from the initial solution of Rp. 1,887,700,000, - to Rp. 1,849,500,000, - so that the difference in cost reduction is Rp. 38,200,000, - with a minimum cost percentage of 2.02%.
Reducing Cycle Time in the Manufacturing Process of Circular Pattern Interpolar Products (CPIP) Using Special Fixtures on a 3-Axis CNC Machine Sonjaya, Muhammad Luthfi; Massaguni, Massriyady; Amaluddin, Muh. Nurul Haq
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4439

Abstract

This research focuses on the design of fixture aids to support the manufacturing process of Circular Pattern Interpolation Products (CPIP), such as disk brake components, flanges, turbine disk runners, and other plate components with circular feeding patterns in the 3-Axis CNC machining process. The objective of this study is to achieve more efficient CPIP production times on 3-Axis CNC machines. The research methodology employed a design and build approach, involving the design of fixture aids, fabrication, and testing during the production of turbine disk runners on a 3-Axis CNC machine. This was done by comparing the initial workpiece setup time and the workpiece clamping transfer time using CPIP production aids versus not using CPIP production aids. The results showed that the designed CPIP Fixture significantly reduced the CPIP manufacturing Cycle Time, with a reduction of 63.11% in the initial workpiece setup time and 83.55% during the clamping transfer process.
Design of Experiments (Doe) on Suspension Test Equipment of One Part Of A Vehicle Wheel Using The Taguchi Method Simon, Christof Geraldi; Paliling, Formanto; Lasarus, Risa; Salo, Lery Alfriany; Bethony, Frans Robert; ka’ka, Simon
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4581

Abstract

Suspension is the most important thing that must be taken into account because it greatly affects driving comfort on the road. The working mechanism of the suspension consisting of spiral springs and shock absorbers is loaded vertically from the weight of the body, driver, and passengers. The uneven shape of the road surface in the form of potholes or bumps will greatly affect the comfort of the driver. This study aims to determine the effect of suspension work and the optimal value of vibration that occurs on one of the wheels of the vehicle against vertical dynamic loads. The method used in this study uses the Taguchi method which is used to determine the optimum dynamic load conditions against vibration in the suspension system.   The characteristics used in this method are "Smaller is better". Several variables such as bump height, tire pressure on the wheels, as well as vehicle body weight and passenger weight are necessary factors to calculate optimal dynamic load conditions against vibration in the suspension. Based on the results of the optimum value conditions obtained, namely the height of the mound of 5 cm, tire pressure of 32 Psi, load of 84 kg, and dynamic load of 71 kg. From the results of the contribution rate to the ANOVA obtained, factor A (bump height) and factor D (dynamic load) are significant factors while factor B (tire pressure) and factor C (load load) are insignificant factors. Under optimal conditions, there was a decrease in suspension vibration value by 49.65%.

Page 19 of 22 | Total Record : 211

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