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All Journal Rekayasa Mesin Turbo : Jurnal Program Studi Teknik Mesin Jurnal Lembaga Pengabdian Kepada Masyarakat Undana
Pah, Jack Carol Adolf
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Economics, Econometrics & Finance Education Engineering Health Professions Mechanical Engineering Social Sciences

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Pengaruh Waktu dan Tekanan Gesek terhadap Kekuatan Tarik Sambungan Paduan Aluminium dan Baja Karbon pada Pengelasan Gesek Continuous Drive Pah, Jack Carol Adolf; Irawan, Yudy Surya; Suprapto, Wahyono
Jurnal Rekayasa Mesin Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (745.566 KB) | DOI: 10.21776/ub.jrm.2018.009.01.8

Abstract

The objective of this research was to investigate the effect of friction time and friction pressure on the tensile strength of the joining of two dissimilar materials, aluminum alloy AA6061 and carbon steel, with continuous drive friction welding process. Variations of friction times of 5 seconds, 7 seconds, 9 seconds, and 11 seconds, at each variation of friction pressures of 24 MPa, 32 MPa, and 40 MPa. Controlled variables in this friction welding process were rotational speed of 1600 rpm, upset pressure of 79 MPa which was applied for 60 seconds and diameter of friction surface of specimens which were 15 mm. The resulting strength of the bonding were than evaluated on the basis of tensile strength. Observations of temperature change during the welding process, the distribution of Vickers hardness values around the bonds area, and micro photographs, were used as support to the analysis. The results showed that the longer friction time was applied, the higher tensile strength of the bonds would be, until it began to decrease after a certain maximum value of the tensile strength had been reached. Increased of the tensile strength of the bonding did not occur linearly due to the variation of friction pressure at 9 seconds and 11 seconds of friction time. At 5 seconds and 7 seconds of friction time, increase of friction pressure caused a linear increase of tensile strength. Higher temperatures in the welding process increased the thickness of brittle layer at the bonds boundary. The increase of the brittle layer thickness causes decrease of the tensile strength of the bonds.
Akibat peningkatan tekanan gesek terhadap kekuatan tarik sambungan pada proses pengelasan gesek continuous drive AA6061- baja karbon sedang Pah, Jack Carol Adolf; Riwu, Defmit B. N.; Maliwemu, Erich U.K.; Tobe, Adi Yermia; Bunganaen, Wenseslaus; Mangesa, Daud P.
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2296

Abstract

The objective of this research was to get the effect of friction pressure on the tensile strength of the joining of aluminum alloy AA6061 and carbon steel, with continuous drive friction welding process. Variations of friction pressure of this research were 24 MPa, 32 MPa, and 40 MPa. In this study, a friction time 9 seconds was used. Other friction welding variables were, forging pressure 79 MPa, forging time 60 seconds, and friction rotation speed 1600 rpm. The independent variable was the ultimate tensile strength of the welded joint. The results showed that the increase in the tensile strength of the joint was not linear with the increase of frictional pressure. The rate of the increase in the tensile strength of the connection, will decrease after the frictional pressure passes through 32 MPa. When the rate of increase in the tensile strength of the joint begins to decrease, the joint will become more brittle. The maximum tensile strength of the joint in this study was 167.421 MPa at a frictional pressure of 40 MPa.Rasakan keseruan bermain di om88 dengan peluang menang yang lebih besar. Nikmati pengalaman bermain yang seru, aman, dan penuh tantangan. Segera coba dan raih kemenangan besarmu!
Pelatihan Pembuatan Jahe dan Kunyit Instan Pada Masyarakat Kelurahan Lasiana-Kota Kupang Pah, Jack Carol Adolf; Abolladaka, Jacob; Riwu, Defmit B. N.
Jurnal Pengabdian Kepada Masyarakat Undana Vol 15 No 2 (2021): DESEMBER 2021
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jpkmlppm.v15i2.5743

Abstract

Abstract This activity is intended to provide understanding and skills to the community in Lasiana Subdistrict, at Kupang City, on how to use house yard land to provide added value for family needs. This activity focuses on two types of plants, ginger and turmeric. How to grow a good ginger and turmeric, and maintain it. Giving added value to these two types of plants by processing them into ready-to-eat (instant) ginger and turmeric. The method used in this activity is interactive lectures and training (practice). Entrepreneurship and marketing of home industry products is also provided as additional knowledge. The participants are able to have skills in processing ginger and turmeric, into instant ginger and turmeric, which can be seen by their ability to make these products. The interest and knowledge of the participants in entrepreneurship must be followed up on the next activity. Keywords: ginger, turmeric, home yard use, added value, home industry Abstrak Kegiatan ini dimaksudkan untuk memberi pemahaman dan juga memberi ketrampilan pada masyarakat Kelurahan Lasiana di Kota Kupang, tentang bagaimana memanfaatkan lahan pekarangan untuk memberi nilai tambah bagi pemenuhan kebutuhan keluarga. Pada Kegiatan ini lebih di fokuskan pada dua jenis tanaman yaitu jahe dan kunyit. Bagaimana cara menanam jahe dan kunyit yang baik, dan memeliharanya. Pemberian nilai tambah pada kedua jenis tanaman ini, dengan mengolahnya menjadi jahe dan kunyit instan siap saji. Metode yang digunakan dalam kegiatan ini adalah ceramah interaktif dan pelatihan (praktek) pembuatannya. Tambahan pengetahuan mengenai kewirausahaan dan pemasaran produk industri rumah tangga, juga diberikan sebagai materi tambahan dalam kegiatan ini. Peserta kegiatan mampu menguasai dengan baik ketrampilan dalam mengolah jahe dan kunyit, menjadi jahe dan kunyit instan. Hal ini terlihat dengan mampunya mereka dalam membuat produk ini. Ketertarikan dan pengetahuan peserta kegiatan ini pada kewirausahaan merupakan suatu yang mengembirakan dan harus ditindaklanjuti pada kegiatan berikutnya. Kata Kunci: Jahe, kunyit, pemanfaatan pekarangan, nilai tambah, industri rumah tangga
Co-Authors Abolladaka, Jacob Defmit B.N. Riwu Erich Maliwemu, Erich Mangesa, Daud P. Tobe, Adi Yermia Wahyono Suprapto Wenseslaus Bunganaen Yudy Surya Irawan