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Oktosatrio, Suhendro
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Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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ANALISA KERUSAKAN PENGAIT PEGAS LARAS PISTOL P1 PINDAD Oktosatrio, Suhendro; Sugihandoko; Tjandra Kusuma, Taufan
JURNAL MEKANIKASISTA Vol. 11 No. 2 (2024): MEI 2024
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v11i2.184

Abstract

While the goals and objectives of the study to analyze the physical properties and mechanical properties of the P1 Pindad Pistol barrel spring hook material because the barrel spring hook is a very important part of the barrel, especially the gun. If the spring hook of this barrel becomes or breaks then the development process will not be such that the project will not go according to the plan of the barrel.From the results of the tests that have been carried out both the test and the test the final result cannot be concluded that the results of the test are the result of the process.easily damaged or brittle clean, but from the results of micro trials produced a lot of mistakes, because in the process of heat treatment of the barrel is not to form a bainit structure that makes steel strong resistance to pressure.Suggestions from the author for the manufacture of the barrel forward so that in the process of special heat treatment when cooling is attempted to form bainit which makes the barrel becomes ductile and not easily broken or damaged.
ANALISA PERBANDINGAN SIFAT FISIS DAN MEKANIS ANTARA PENA PEMUKUL SS1-V1 BUATAN PINDAD DENGAN M16-A1 BUATAN AMERIKA Oktosatrio, Suhendro; Sugihandoko; TjandraKusuma, Taufan
JURNAL MEKANIKASISTA Vol. 12 No. 1 (2024): NOPEMBER 2024
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i1.241

Abstract

This research analyzes the differences in physical and mechanical properties between the firing pin of the SS1-V1, manufactured by Pindad, and the firing pin of the M16-A1, manufactured in the United States. The main focus is to determine the cause of frequent damage to the SS1-V1 firing pin, while the M16-A1 firing pin does not experience similar issues. Testing included hardness tests, microstructure analysis, and material composition analysis, showing that although both pins have similar material structures, there are significant differences in composition and design. As a result, the author recommends changes in the composition, structure, and design of the SS1-V1 firing pin to make it stronger and more durable.  
PERENCANAAN PENGGANTI DUDUKAN VALVE PADA SEPEDA MOTOR HONDA CB 100 CC Oktosatrio, Suhendro; Sugihandoko; TjandraKusuma , Taufan
JURNAL MEKANIKASISTA Vol. 12 No. 2 (2025): MEI 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v12i2.305

Abstract

The Military Academy has high vehicle mobility, particularly motorcycles that are intensively used as a means of transportation within the academy environment. High usage leads to wear and tear on engine components, especially the valve seat, which can affect fuel efficiency and engine power. This study aims to analyze the replacement material for the valve seat on a Honda CB 100 CC motorcycle through material composition testing, hardness testing, and microstructure analysis. The research results indicate that the original valve seat is made of an alloy steel containing chromium and a small amount of nickel, with characteristics similar to the XW-5 material produced by Krakatau Steel. The microstructure analysis reveals a dominance of ferrite and pearlite, which can lead to material brittleness at high temperatures. Therefore, selecting a material that is more heat- and wear-resistant is crucial in designing a replacement valve seat. This study is expected to provide a solution for maintaining and improving the efficiency of motorcycles at the Military Academy while addressing the issue of spare part shortages.  
OPTIMALISASI PENYETELAN CELAH KATUP TERHADAP TEKANAN KOMPRESI PADA KENDARAAN ISUZU PHANTER Oktosatrio, Suhendro; Sugihandoko; TjandraKusuma, Taufan
JURNAL MEKANIKASISTA Vol. 13 No. 1 (2025): NOVEMBER 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v13i1.393

Abstract

This study aims to determine the effect of valve clearance adjustment on compression pressure and fuel consumption in the Isuzu Panther Bravo vehicle. The background of this research is based on the frequent inaccuracies in valve clearance adjustments caused by the improper use of measuring tools, such as using paper instead of a proper fuller gauge. Incorrect valve clearance settings can lead to various engine problems. When the valve clearance is too tight, the compression pressure becomes low, the engine overheats easily, fuel consumption increases, engine power decreases, and the engine becomes difficult to start. Conversely, if the valve clearance is too wide, the compression pressure also decreases, engine power is reduced, and a knocking or “ticking” sound appears when the engine is running. The research was conducted using nine different valve clearance settings, both for the intake and exhaust valves, ranging from 0.20 mm to 0.60 mm. Each variation was tested using a compression pressure gauge to measure the resulting pressure for each setting. The test results showed varying but relatively close values, so an average was calculated to determine the most ideal valve clearance. The findings of this study are expected to provide practical guidance in setting the correct valve clearance to achieve optimal compression pressure and maximum fuel efficiency in the Isuzu Panther Bravo engine. Moreover, it emphasizes the importance of using the proper measuring instrument, such as a fuller gauge, to ensure accuracy in valve clearance adjustments. Keywords: valve clearance, compression pressure, engine efficiency, Isuzu Panther , optimization
Co-Authors Sugihandoko Tjandra Kusuma, Taufan TjandraKusuma , Taufan TjandraKusuma, Taufan