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All Journal AUSTENIT Jurnal Pendidikan Teknik Mesin
Olivia Laras Sati
Universitas TamanSiswa Palembang
Automotive Engineering Control & Systems Engineering Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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DETERMINATION OF COOLANT OPTIMUM OPERATING TEMPERATURE IN INJECTION PRINTING PROCESS BASED ON PRODUCT PRECISION LEVEL Olivia Laras Sati; Ambo Intang; Dendi Dwi Saputra
AUSTENIT Vol. 14 No. 2 (2022): AUSTENIT: October 2022
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v14i2.4976

Abstract

Currently, plastic is more dominantly used because it is cheap, elastic and easy to process. To maintain the quality of plastic products, especially the type of Polyethylene Terephthalate (PET), the researchers implemented a modern plastic manufacturing system, namely using an injection molding system. In order to be able to meet the demands in solving problems that may arise in the process of making plastic products such as: quality, manufacturing time, and safety systems. The injection molding method replaces the old method, namely the hand press machine. This selection is based on advantages such as the consistency of the product produced because it is programmed, equipped with a control system, shorter product time, adequate security system, and other advantages. In this research, an experiment will be conducted to determine the optimum cooling temperature in the form of Pet Gallon. The problems that often occur are product defects due to shrinkage. In connection with this, the test results are obtained as follows: there is a difference in the shrinkage of product dimensions in the experiment using Cooled Chiller and Tower Chiller cooling, cooling has the greatest influence on the processing time of product manufacture, the optimum cooling temperature occurs at a cooling temperature of 200C.
IMPLEMENTASI PERAWATAN DAN PERBAIKAN PERALATAN BENGKEL SMK TEKNIK PEMESINAN DI BANDAR LAMPUNG BERBASIS INDUSTRI Ridho Aritonang; bz Septeiyawan Abdullah; Olivia Laras Sati; Ardani Ahsanul Fakhri; Appriyana Hari Murti; Wahyu Eka Sulistia Sari; Efri Meldianto; Eliza Bahora; Elisa Mayang Sari; iswahyuni wulandari
JURNAL PENDIDIKAN TEKNIK MESIN Vol 10, No 1 (2023): JURNAL PENDIDIKAN TEKNIK MESIN
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v10i1.21403

Abstract

Penelitian ini bertujuan untuk mengetahui kualitas: (1) perencanaan, (2) pelaksanaan, dan (3) pengawasan pada tata kelola bengkel praktik SMK jurusan Teknik Pemesinan di Kota Bandar Lampung. Penelitian ini merupakan penelitian kuantitatif dengan metode penelitian survei. Responden pada penelitian ini adalah ketua jurusan, guru produktif, dan teknisi sedangkan pada PT. SUNTER INTI MEGAH adalah kepala bengkel, teknisi dan operator. Teknik pengumpulan data yang digunakan adalah: kuesioner, wawancara, dan observasi. Teknik analisis data yang digunakan adalah statistik deskriptif. Hasil penelitian menunjukkan bahwa: (1) perencanaan pada PT. SUNTER INTI MEGAH mempunyai kualitas baik dengan mean 3,18 sementara pada smk mempunyai kualitas baik dengan mean 2,81; (2) pelaksanaan pada PT. SUNTER INTI MEGAH mempunyai kualitas sangat baik dengan mean 3,30 sementara pada smk mempunyai kualitas baik dengan mean 2,68; dan (3) pengawasan pada PT. SUNTER INTI MEGAH mempunyai kualitas baik dengan mean 3,13 sementara pada smk mempunyai kualitas baik dengan mean 2,61. Berdasarkan penelitian ini, SMK dapat mengetahui sampai dimana tata kelola yang sudah dilakukan dan Industri dapat memberikan gambaran serta solusi terhadap SMK untuk menjadi lebih  baik lagi.
Co-Authors Ambo Intang Appriyana Hari Murti Ardani Ahsanul Fakhri Bz Septeiyawan Abdullah Dendi Dwi Saputra Efri Meldianto Eliza Bahora iswahyuni wulandari Muhammad Agus Muljanto Ridho Aritonang Wahyu Eka Sulistia Sari