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Pratama, Hendra Saputra
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Automotive Engineering Education Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences

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Journal : Otopro

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MODIFIKASI ALAT BANTU GERINDA SILINDRIS UNTUK MENINGKATKAN FUNGSI MESIN BUBUT Pratama, Hendra Saputra
Otopro Vol 15, No 1 (2019)
Publisher : Jurusan Teknik Mesin Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v15n1.p9-13

Abstract

Pemesinan adalah salah suatu bagian dari industri manufaktur. Pemesinan memenggang peranan penting didalam produksi yaitu konstruksi mesin dan komponen-komponen mesin. Proses pemesinan meliputi mesin perkakas yaitu mesin bubut, mesin freis, mesin sekrap, mesin bor, mesin gerinda duduk, mesin gerida silindris, mesin gerinda datar, mesin pons dan yang lain-lain. Mesin bubut membuat proros , baut dan lain-lain ini dilakukan secara manual oleh operator. Untuk meningkatkan fungsi dari mesin bubut yaitu dengan menambahkan alat bantu gerinda silindris yang mana alat bantu tersebut dipasang pada eretan melintang mesin bubut ( dudukan tool post ) dan alat bantu ini memiliki fungsi yang sama dengan mesin gerinda silindris. Alat bantu gerinda silindris   dengan rancangan yang sesuai yaitu meliputi motor listrik sebagai elemen penggerak, bantalan ( bearing) untuk memutarkan poros yang dihubungkan dengan batu gerinda, poros dan sebagai elemen transmisi yang digerakan digunakan pulley dan belt. Dengan dibuatrnya alat bantu gerinda silindris bisa menghasilkan produk kesilindrisan yang sama dengan produk mesin gerinda silindris.
ALAT ELEKTROPLATING BERBASIS PENGATUR WAKTU UNTUK PELAPISAN CHROME DI LABORATORIUM PELAPISAN LOGAM Langgeng, Langgeng; Pratama, Hendra Saputra; Sodiwiryo, Kusetyono Lamiran
Otopro Vol 19 No 2 Mei 2024
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v19n2.p65-70

Abstract

Practicum is a fairly complex teaching and learning process, but the level of complexity is always in line with human development. It is necessary to have facilities or media that can stimulate the learning process so that it runs effectively and efficiently, including tools that support practicum activities. The steel used is usually a type of low carbon steel which is corrosive in air, water and soil. This corrosion can occur because steel throws away electrons, causing the steel to oxidize. Steel that experiences oxidation can become brittle, weak, and unable to bear the load that a steel structure should support. Therefore, corrosion can reduce the durability of low-carbon steel structures as well as pipes. However, with the coating method, low carbon steel can be protected from corrosion. Coating steel using metal can be done using various methods, including electroplating (cold dipping) using the direct current method. The working principle is almost the same as electrolysis, where the galvanized metal acts as the anode, while the base metal specimen acts as the cathode. Apart from prioritizing visual results, other factors are equally important and need to be considered, such as durability and protection from corrosion. Because in certain situations, the metal's resistance to corrosion is very important. This coating refers to surface coating, which is a process of modifying the surface of a material with the aim of obtaining properties such as corrosion resistance, high hardness, high temperature resistance and wear resistance without any significant changes to the structural properties.
Co-Authors Hartanto, Anton langgeng, langgeng Sodiwiryo, Kusetyono Lamiran Sudarto, Gitud