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All Journal Jurnal Engine: Energi, Manufaktur, dan Material Quantum Teknika
Sugiyanto Sugiyanto
Universitas Surakarta
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Pembuatan Kekasaran Permukaan Material ST 37 terhadap Kecepatan Pemakanan pada Milling Machine Sugiyanto Sugiyanto; Yogi Prabowo
Jurnal Engine: Energi, Manufaktur, dan Material Vol 2, No 1 (2018)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (773.811 KB) | DOI: 10.30588/jeemm.v2i1.352

Abstract

One of the ideal geometric characteristics of a component is a smooth or rough surface. In practice, it is not possible to obtain a component with a smooth/rough surface. This is due to several factors, such as the human factor (operator) and the factors of the machines used to make it. However, with technological advancements, the growing apparatus capable of forming surface components with a high degree of fineness/roughness, according to the standard measures applicable in metrology, is advanced by geometric measurement experts through research experience. Fineness level/roughness of a surface is very important role in the planning of a machine component, especially concerning the problem of lubrication friction, wear and tear, resistance to fatigue and so on. Therefore, in the planning and manufacture must be considered first about which machine equipment should be used to make it and how much the cost must be incurred. In order for the process of manufacture, there is no significant deviation, then the characteristics of this surface should be understood by the planner even more by the operator. Communication of surface characteristics is usually done in engineering drawings. But to explain perfectly about the characteristics of a surface seems difficult. The research method is started by preparing instrument that is Milling Machine which is used to make surface roughness and Surface Roughness Tester is done 3 times test with variable speed of food which is different equal to 7,3; 13; 24.5 mm/put. With a speed of 102 rpm Rpm, and a depth of 0.4. Next, determine the material roughness level with Surface Roughness Tester. After all, done will get the data test results, followed by analysis and discussion so that will get final conclusion. From the research results obtained the following results: there is a difference in the level of roughness in each material with different feeding speed. The feed rate of 7.3 mm / put yielded 0.64 μ, 13 mm / put roughness generated 1.32 μ, 24.5 mm / put yielded 3.77 μ. The process of measuring the roughness of the material with the speed of feeding is slower, the smoother the surface roughness, the faster the speed of the feeding the more rough. The range of syrup result is also influenced by the speed of the food. The faster the movement of the range range the wider the surface roughness is the opposite.
Rancang Bangun Mesin Perajang Kerupuk Jengkol untuk Meningkatkan Pendapatan UKM Sugiyanto Sugiyanto; Juni Trisnowati
Jurnal Engine: Energi, Manufaktur, dan Material Vol 2, No 2 (2018)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (148.302 KB) | DOI: 10.30588/jeemm.v2i2.421

Abstract

Kerupuk jengkol merupakan makanan tambahan sebagai pelengkap hidangan. Kerupuk jengkol banyak sekali penggemarnya dari kalangan anak-anak, muda dan orang tua. Hal ini disebabkan kerupuk jengkol itu renyah serta gurih dan dapat menyesuaikan jenis hidangan yang disantap. Disekitar kita banyak sekali tentang jenis kerupuk jengkol yaitu kerupuk jengkol yang berbentuk lingkaran. Hampir semua pembuat kerupuk jengkol, khususnya kalangan menengah kebawah dapat dikatakan sangat memerlukan sentuhan teknologi dalam pemotongan gendar kerupuk jengkol. Kebutuhan akan kerupuk jengkol oleh masyarakat semakin bertambah, sedang industri pembuat kerupuk jengkol belum dapat mengimbangi akan kebutuhan konsumen. Sampai sekarang industri kecil dalam hal proses pemotongan gendar kerupuk  jengkol masih manual, yaitu memakai pisau sehingga hasil yang didapatkan sedikit, tidak seragam dan waktu yang dibutuhkan lama dan proses pengadukan. Hal inilah yang menyebabkan kebutuhan akan kerupuk jengkol untuk dikonsumsi terbatas. Bagi industri kecil kesulitan tersebut diatas belum terpecahkan, sehingga diperlukan inovasi program pengembangan Teknologi, khususnya proses pemotongan gendar kerupuk jengkol. Tujuan utama dari kegiatan ini adalah membuat mesin pemotong gendar kerupuk jengkol dan mesin pengaduk yang mampu bekerja secara efektif, sehingga meringankan beban UKM. Metode yang ditawarkan: Survey, perancangan komponen, desain mesin, pembuatan, pengujian mesin, evaluasi, pembuatan laporan. Hasil yang didapatkan  mesin ini adalah 10 batang gendar kerupuk rambak seberat 5 kg proses pemotongan membutuhkan waktu 10 menit, karena proses pemotongan dengan menggunakan mesin. Dengan demikian hasil rekayasa dapat dikatakan dapat bekerja dengan baik, seperti yang diharapkan.
Rekayasa Peningkatan Kekerasan Permukaan Gear Sprocket Sepeda Motor dengan Metode Quenching Variasi Media Pendingin Rauuf Nur Fattah; Sugiyanto Sugiyanto; Bambang Hari Priyambodo; Achmad Nurhidayat; Rizqi Ilmal Yaqin
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol 5, No 1 (2023): October
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v5i1.19418

Abstract

This study used an experimental research method, which is a research method that aims to understand the causal process by treatment and conducting controlled testing on a sample of research subjects. This research uses quantitative methods by taking research data in the form of numbers. The material used in this study is the gear sprocket. A gear sprocket is a motor component that transmits power from the engine to the rear wheels so that the motor can run optimally. The sprocket gear was heat treated at 850 ℃ with a holding time of 20 minutes. The variations of quenching media are mineral water, dromus coolant, and SAE 40 oil. Hardness and microstructure tests were carried out for each specimen to determine the effect of different cooling media on the quenching process. The results of this study indicate the highest specimen hardness value was obtained at 301 HV by immersion in mineral water media. The lowest hardness was obtained at 207 HV with SAE 40 oil media immersion. Meanwhile, the non-treatment material hardness is 150 HV. In this case, there was an increase in the highest hardness of about two times compared to non-treated specimens. Observation of the microstructure shows that the grain size of the mineral water quenching specimens looks smaller than that of the non-treatment models. This phenomenon supports the idea that quenching can increase the surface hardness of the gear sprocket.
Co-Authors Achmad Nurhidayat Bambang Hari Priyambodo Juni Trisnowati Rauuf Nur Fattah Rizqi Ilmal Yaqin Yogi Prabowo