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Fakultas Teknik, Universitas Muhammadiyah Jakarta Jl. Cempaka Putih Tengah 27, RT.11/RW.5, Kec. Cempaka. Putih, Kota Jakarta Pusat, DKI Jakarta 10510
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SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin
Published by Universitas Muhammadiyah Jakarta
ISSN : 20889038     EISSN : 25499645     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin is an open access, peer-review journal which publishes original and review articles that advance the understanding of both the fundamentals of engineering science and its application to the solution of challenges and problems in mechanical engineering systems, machines and components. The editorial team aims to publish high quality and highly applied research and innovation that has the potential to be widely disseminated, taking into consideration the potential mechanical engineering that it could generate.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 8 Documents
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Search results for , issue "Vol 12, No 1 (2018): SINTEK JURNAL" : 8 Documents clear
PERANCANGAN ALAT BANTU UNTUK REMOVE AND INSTALL PISTON STEERING CYLINDER PADA UNIT HD1500-7 Hendro Purwono; Rasma Rasma
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

The number of jobs and the duration of the process of replacing the steering cylinder seals (reseal) on the HD1500-7 unit, especially when removing and installing the piston steering cylinder on the rod by a mechanic causes the loss of rental costs and failure to achieve the company's target due to breakdown. The purpose of this study is to design tools to shorten the time and simplify the process in order to minimize the loss of rental costs and more secure. The method used in this research is field survey, interview, and library research. The results obtained after the new tool indicate a time efficiency of 1 hour for one-time processing and can reduce the loss of rental costs of $ 70 (Rp.910.000) and safer for demage and mechanical properties because of the potential slip when the tool is used.
IDENTIFIKASI PENYEBAB POTENSIAL KECACATAN PRODUK DAN DAMPAKNYA DENGAN MENGGUNAKAN PENDEKATAN FAILURE MODE EFFECT ANALYSIS (FMEA) Franka Hendra; Riki Effendi
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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The main purpose of this paper is to analyze and identify failures for minimize the risk of product defects in the production process faucet part S11037S and detect the main facto of the cause of disability that occurred. The method used with Seven Plus One Type of Waste approach and the concept of Failure Mode Effect Analysis (FMEA). Results obtained from 28 types of disability on the faucet prakuk there are 5 types of frequencies that occur high frequency that is; Gomi, Hike, Kizu, Nami and Su. From the five types of defects can be identified several causes that often occur, among the causes that there are high RPN (Risk Priority Number) that is; 1. Gomi, the dominant cause is due to operator negligence at the time of production with the value of RPN = 60, 2. Hike, with the highest cause is the entry of dirt at the time of Plotting with RPN = 24, 3. Kizu, the main cause is also from operator negligence with RPN = 36 and Nami, the cause of the duplication is that the material used has a low quality. While Su factro cause has a low RPN that is 4 to 6.
ANALISA REAKTOR BIOGAS CAMPURAN LIMBAH KOTORAN KAMBING DENGAN JERAMI DAN EM4 SISTEM MENETAP Eswanto Eswanto; Ilmi Ilmi
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Biogas is a gas mixture produced by methanogenic bacteria that occurs in naturally decomposable materials under anaerobic conditions. Currently, alternativf energy is needed as a replacement source of energy derived from fossil and petroleum, therefore the utilization of waste into biogas is one solution that must be developed. The purpose of this research is to obtain the characteristics of the sedentary system reactor and biogas yield. In this study biogas testing of goat waste with rice straw mixture and EM4 to produce methane gas. The results showed that the gas capacity produced was 0.1675 m3 / s and the 0.0023 kg period, on the other hand the gas pressure obtained was 19.1 N / m2 with a temperature of 36 °C. While the time required for the formation of gas that is for 5 day after the introduction of raw material into biogas reactor settled system.
PERUBAHAN MORFOLOGI STRUKTUR MIKRO PADUAN Cu-Zn 70/30 YANG DILAKUKAN TMCP DI SUHU 300°C DENGAN VARIASI WAKTU TAHAN PEMANASAN Eka Febriyanti; Ahmad Fadli; Amin Suhadi; Rini Riastuti
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

Cu-Zn alloy (70/30) used extensively for core and tank automotive radiator, ammunition component, and architectural hardware so that susceptible to exposure of corrosive environments such as seawater and ammonia environments. Therefore, this research focuses on the study of mechanical properties and corrosion resistance Cu-Zn 70/30 by implementing warm rolling TMCP method. Thermo-Mechanical Controlled Processing (TMCP) is one method consists of controlled heating and controlled forming to produce high quality materials. Rolling process was conducted in reversible way with deformation degree of 60% (30%-30%) and before each pass of the rolling the material is heated up to temperature 300oC with different holding time from 30, 60, and 120 minutes. The results showed that as the longer holding time of the heating and was continued by further deformation, it affects the grain size to be much smaller from 92.2 μm to 36.5 μm. In addition, it is also found an increasing of annealed twin, deformed twin, as well as finer and newer grains that indicate partial dynamic recrystallization.
IMPLEMENTASI METODE QUALITY CONTROL CIRCLE UNTUK PENINGKATAN KAPASITAS PRODUKSI PROPELLER SHAFT DI PT XYZ Ahmad Yunus Nasution; Sulis Yulianto
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

PT.XYZ is a company manufacture automotive under body parts. With the policy of adding new models, so that the loading line propeller shaft 2 joint will increase, where in the production line is not sufficient with high loading production so that the production capacity is not adequate. In order for production capacity can be achieved according to target, needed improvement. In this discussion, the improvement will be related to the process of assy propeller shaft 2 joint. The method used in this research is QCC (Quality Control Circle). This method is appointed by the author for supporting the program of countinous improvement in the company. Sub assy process is a process with the highest cycle time, so the production capacity of the line propeller shaft 2 joint is not sufficient. After the observation with the QCC method of work elements sub assy process is the highest handling replacement fixture. The focal point of the improvement that will be done now is the fixture modification of the sub assy process. After improving the working elements of the handling fixture, the cycle time sub assy process decreased from 85 seconds to 70 seconds and the production line of line propeller shaft 2 joint increased from 96% to 100%.
CARA MENENTUKAN DAYA YANG DIGUNAKAN AIR CONDITIONING (AC) UNTUK KENDARAAN Najamudin Najamudin
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

Vital transportation facilities for the community to facilitate and accelerate human movement from bed more quickly, safely and comfortably. Buses with large capacity with passengers over 50 people operating between cities or between provinces require specific performance in order to provide security and comfort for passengers on the way. Bus transports between cities and between provinces are equipped with air conditioning  system (AC) and some are not. In Buses that use air refreshments there is also no use of the standard main components installed from the manufacturer; such as compressors, condensers, expansion valves and others. Compressors in the air refreshing system can be analogous to the heart of the human body, which serves to suck and pump coolant (refrigerant) that circulates in the system. In this study found that there are several buses that compressor is not a standard compressor from the manufacturer. For that purpose, calculations are mainly carried out on cooling loads, achievement coefficients and compressor power.
ANALISA UNJUK KERJA AKUMULATOR DAN BIAYA PADA ALAT PENYIRAM TANAMAN BAWANG MERAH Fadwah Maghfurah; Windarta Windarta; Andis Munandar
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

One of the latest innovations for watering plants onion is using DC water pump machine with a power source, Accumulators, charger, and material selection right framework to fit the plan and adjust first hand, the pump can emit large amounts of water and can spread to all parts of the plot width onion plants and minimize the operational expand, as well as cheap, as well as effective to raise profit, as the power  Accumulator sufficient to flushing. Accumulators used had amounted to 10 Ah Ampere hour to run the pump with a power of 60 watts for 1.6 hours (96 minutes). Moment of force equilibrium this tool on RAV = 34.549 N and RVB = 35.109 N. Break Even Point (BEP) for sprinklers rupiah onion crop is RP 1.641 million. In the area there are 36 plots that would require 18 times watering, then 105 x 18 = 1890 seconds (31 minutes 30 seconds).
KAJI SIFAT MEKANIK SAMBUNGAN LAS BUTT WELD DAN DOUBLE LAP JOINT PADA MATERIAL BAJA KARBON RENDAH Azwinur Azwinur; Syukran Syukran; Hamdani Hamdani
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 12, No 1 (2018): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

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Abstract

Technology in the field of steel construction continues to grow rapidly, especially in design and product design. In the application of steel construction is often a process of metal grafting or often called welding. Each welding process must have a joint design that serves to obtain a good connection or pass the test according to standard or code adopted. Therefore, the selection of welded joint type is very important before welding process. The purpose of this research is to know the value of tensile strength and bend strength (mechanical properties) welding joint type butt weld and double lap joint on material ASTM SA.36. Based on the test data it is found that the highest tensile strength test is in the welded butt weld type of 49.8 kgf/mm2 compared to the tensile strength value for the weld joint double joint type of 48.65 kgf/mm2. While the value of bending strength is greater in the joint weld type double lap joint than the welded butt weld type joint both for the category of root bend and face bend.

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