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All Journal Quantum Teknika Innovative: Journal Of Social Science Research
Mahardika, Bimo Sakti
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Other

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Analisis Variasi Waktu Perendaman Deep Cryogenic Treatment dan Aging terhadap Pengujian Kekerasan pada Aluminium 6061 Mahardika, Bimo Sakti; Naubnome, Viktor; Setiawan, Reza
Quantum Teknika : Jurnal Teknik Mesin Terapan Vol. 6 No. 2 (2025): April
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jqt.v6i2.23726

Abstract

Aluminum alloys are used more in industry due to its light weight, corrosion resistance, high strength, hardness, and recycling. This study examines the microstructure and hardness of 6061 aluminum alloy treated with Deep Cryogenic Treatment for 2, 12, 24, and 48 hours, followed by 1 hour of 1500C aging. Vickers hardness and microstructure testing will occur. The test results show that the hardness value has increased compared to the raw material. In the raw material variation, the hardness value is 53.4 HVN. The 2-hour immersion time variation experienced an increase in hardness value of 48.59% compared to the raw material. In the 12-hour soaking time variation, there was an increase of 43.9%. While the 24-hour and 48-hour variations also experienced an increase of 21.76% and 28.52% compared to the raw material. This is influenced by the microstructure that changes along with the variation in soaking time. Precipitates form due to the influence of deep cryogenic treatment which results in the hardness value of the 24-hour and 48-hour time variations decreasing compared to the 2-hour and 12-hour time variations.
Analisis Peningkatan Produktivitas Kerja Mesin Crimping Menggunakan Metode Total Productive Maintenance Di CV XYZ Mahardika, Bimo Sakti; Oleh, Oleh; Naubnome , Viktor
Innovative: Journal Of Social Science Research Vol. 4 No. 1 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i1.8391

Abstract

Wire harness merupakan suatu komponen dikendaraan bermotor yang untuk menghantarakan aliran listrik. Mesin crimping merupakan salah satu mesin yang digunakan dalam produksi wire harnees dengan mengkoneksikan kabel dengan terminal yang akan dihubungkan dengan elektronik maupun kendaraan bermotor. TPM adalah strategi untuk meningkatkan hasil bisnis dengan memanfaatkan mesin dan peralatan lainnya dengan lebih baik. Dengan mengeliminasi enam kerugian utama pada mesin di sebuah perusahaan, TPM juga dapat menunjukkan seberapa baik fungsi dan kinerja mesin. Penelitian yang ditujukan pada mesin crimping dan data yang dilakukan dalam waktu 1 bulan yaitu Desember 2020 – Januari 2021, didapatkan nilai overall equipment effectiveness (OEE) berkisar sekitar 88,08 % hingga 91,88 % dan rata-ratamya sebesar 89,49 %. Pengaruh nilai OEE dari six big losses yang terbesar yaitu setup and adjustment losses sebesar 4,7% terjadi masalah.
Co-Authors Naubnome , Viktor Naubnome, Viktor Oleh, Oleh Reza Setiawan