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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin
Indreswari Suroso
Sekolah Tinggi Teknologi Kedirgantaraan Yogyakarta
Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis kekerasan dan keausan bearing pada pesawat Cessna Grand Carravan 208B Muhammad Abdul Rafiq Septiyanto; Indreswari Suroso; Noviana Utami
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 1 (2022): Jurnal TURBO Volume 11 Nomor 1 Juni 2022
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i1.2045

Abstract

Bearing is a surface component that protects two parts that rub against each other. Bearings have several components including inner rings, roll bearings and supports. Bearings will experience weariness when used continuously, so the purpose of this study is to determine the level of hardness and wear of each bearing component of the Cessna Grand Caravan 208B aircraft. Hardness testing is carried out by vickers method and test sampling is carried out at three different points in each specimen. Wear testing uses the Ogoshimethod and test sampling is performed at three different points in each specimen. The results of this study concluded that vickers hardness testing received the highest hardness score on the roll with an average value of 739.7 VHN, the second highest hardness in the inner ring had an average hardness value of 695.1 VHN, and the lowest hardness in the buffer section had an average hardness value of 110.2 VHN. The wear test results get the highest value on the support section which is 0.00273 mm³ / kg.m, the second highest wear on the inner ring is 0.00133 mm³ / kg.m, and the lowest wear value on the roll is 0.00056 mm³ / kg.m.
Pengaruh quenching terhadap uji kekerasan dan uji impact disc brake cessna grand caravan 208b Moh. Ilham S. Pilisi; Indreswari Suroso; Noviana Utami
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.16.1.61-67

Abstract

Disc brake is a disc in the braking system (brake system) which is located on the landing gear. During braking, friction occurs between the disc brake and brake lining, resulting in high heat and deformation resulting in decreased service life of the disc brake. To overcome this problem, a research was conducted by providing quenching heat treatment using several cooling media, namely sea water, well water, oil SAE 40, and then carried out a vickers hardness test and a charpy impact test in order to determine the strength of the disc brake material. The results of this study show changes in the characteristics of the material that has been treated with heat quenching. Quenching produces a hard but brittle martensite phase. Quenching using seawater cooling resulted in the highest hardness of 584 VHN or an increase of 71%. The results of the Charpy impact test show that the highest impact price on raw material is 0.801 J/mm2 and the impact price on quenched material has decreased. This is due to the formation of a large amount of martensite phase, so that the quenched material produces high hardness and is brittle.
Co-Authors Moh. Ilham S. Pilisi Muhammad Abdul Rafiq Septiyanto Noviana Utami