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All Journal MACHINERY: Jurnal Teknologi Terapan Aptekmas : Jurnal Pengabdian Kepada Masyarakat
Irawan Malik
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Journal : Aptekmas : Jurnal Pengabdian Kepada Masyarakat

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APLIKASI MATLAB DALAM MENGUKUR KEBULATAN HASIL INDENTASI UJI KEKERASAN BAGI KARYAWAN PT. SRI TERANG LINGGA PALEMBANG Irawan Malik; Moch Yunus; Soegeng Witjahjo; Romli Romli
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 2 No 1 (2019): APTEKMAS Volume 2 Nomor 1 2019
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.918 KB) | DOI: 10.36257/apts.v2i1.1299

Abstract

Provision of spare parts for production equipment needs to be prepared with specifications, number of needs and correct time of availability, and especially for critical machining components that require correct and appropriate tactics so as not to disrupt its continuity of production. However, it is not a secret for a production department to make replacement parts that have the same mechanical properties through hardness testing of components that have failed. Through a computer program with an algorithm that is able to read a photo as a result of an indentation emphasis on hardness test, it can be known quickly a roundness diameter and calculate its hardness value which will be converted into one of the mechanical properties of a material so that a profile projector is not needed. Core of this implementation of our community service program is through an assignment scheme for employees of PT. Sri Trang Lingga Palembang, located on road TPA 2, RT. 26, RW. 29, Keramasan Subdistrict, Kertapati, Palembang City, South Sumatra, postal code 30149 is how to provide theoretical and experimental knowledge of the implementation of hardness tests on metal materials by emphasizing use of computer algorithms in reading photos of indentation hardness test results as an alternative to replacement use profile projector tool that is usually used for students of D-IV Mechanical Engineering Production and Maintenance (TMPP) Department of Mechanical Engineering Sriwijaya State Polytechnic to determine size of the indentation diameter emphasis from Brinnel hardness test.
PENGENALAN PENGGUNAAN SIMULASI PENGECORAN BAGI USAHA COR LOGAM DI PALEMBANG Irawan Malik; Moch. Yunus; Dwi Arnoldi; Yogi Eka Fernandes
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 4 No 4 (2021): APTEKMAS Volume 4 Nomor 4 2021
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.09 KB) | DOI: 10.36257/apts.v4i4.3500

Abstract

Problems in metal casting include, among others, air cavity defects caused by use of pour plate and descending channel models which are directly used in sand molds; air or gas from sand mold or aluminum scrap liquid metal cannot escape through cavity between the sand grains during pouring process; river sand is in the form of crystalline sand grains which can affect fire resistance and low permeability in sand molds, consequently requiring large amounts of binder; and water content in river sand for making sand molds is less than 1.5% - 8% as a result, clay will experience a lack of binding power in the sand. Departing from the above problems, it is necessary to pay attention to design stages, especially in e field of casting product design, which currently uses a lot of software that can support businesses, such as Solidworks Computer Aided Design - Computer Aided Manufacturing software and casting simulation software such as Altair Inspire cast. Design of cast objects and simulation in preparation for making molds and core castings using Solidworks and Altair Inspire Cast software aims to obtain accuracy of the cast objects so that they do not require much finishing work and the simulation of casting process is expected to reduce casting failures as described. Essence of implementation of community service programs through (additional) assignment schemes for small industries Mandiri of metal cast in Palembang is how to provide theoretical knowledge of designing cast objects using CAD software and simulate the casting process which is usually used for students of study program D-IV in Mechanical Engineering of Production and Maintenance (TMPP) - State Polytechnic of Sriwijaya. to find out the best design model and casting process so as to minimize casting defects.
Co-Authors Dwi Arnoldi Fatahul Arifin Kasma Wita, Wantri Moch. Yunus Mochammad Yunus, Mochammad Piyata Wira Yonatan Sitohang Romli Romli Sairul Effendi Soegeng Witjahjo Sri Wulandari Wulandari, Sri Wulandari Yogi Eka Fernandes