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All Journal Jurnal Rekayasa Proses Rekayasa Mesin JURNAL INTEGRASI INOVTEK POLBENG Jurnal Rekayasa Proses Buletin Profesi Insinyur Jurnal Teknologi dan Riset Terapan (JATRA) DEVICE Journal of Engineering and Applied Technology Jurnal Pengabdian kepada Masyarakat Politeknik Negeri Batam Prosiding Seminar Nasional Sisfotek (Sistem Informasi dan Teknologi Informasi) Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) Proceeding Applied Business and Engineering Conference Jurnal Profesi Insinyur Indonesia Jurnal Rekayasa Proses
Hanifah Widiastuti
Politeknik Negeri Batam
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Journal : JURNAL INTEGRASI

 1 
Analisa Hasil Kekasaran Permukaan Kayu terhadap Jenis Ketam Rahman Hakim; Hanifah Widiastuti
JURNAL INTEGRASI Vol 9 No 2 (2017): Jurnal Integrasi - Oktober 2017
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v9i2.455

Abstract

A plane is a tool related to woodworking, which is used for smoothening the surface of the wood. Currently, there are many different smoothing planes available in the market. In this study, the evaluation of a self-made hand plane was conducted. One of the variables that can be utilized to investigate smoothing plane’s performance is by analyzing its wood’s surface smoothening capability. In this reserch, the smoothening capability was evaluated by measuring the wood’s surface roughness after the smoothening process. This study was conducted by utilizing three different types of wood namely limestone wood, meranti wood, and kempas wood as well as three different planes that are a mini plane (self-made tool), a commercial plane, and a power planer. The results show that prior to smoothening process, the maximum surface roughness was 16.432 µm for wet limestone wood and the minimum was 7,871 µm for kempas oven wood. After the smoothening process, the surface maximum roughness values are 10,932 µm using hand mini plane, 12,329 µm for kapur basah wood with the commercial plane for kapur basah wood and minimum roughness of 4,982 µm obtained hand mini plane for meranti oven wood and 5,826 µm for meranti oven wood with the commercial plane. It was also observed that the self-made mini plane gave lower values of surface roughness compared to commercial plane. Thus, it could be summarized that the self-made plane (mini hand plane) is capable to be used for the wood surface smoothening and it has better performance compared to the commercial plane.
ALTERNATIF PENGGANTI PASTA ALUMINA SEBAGAI BAHAN POLISHER UNTUK METALOGRAFI Ari Wibowo; Hanifah Widiastuti; Nurman Pamungkas; Cahyo Budi Nugroho
JURNAL INTEGRASI Vol 12 No 2 (2020): Jurnal Integrasi - Oktober 2020
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v12i2.2022

Abstract

Polishing have played an important role in the preparation of metallography testing. Poor polishing produce in an unflat and rough surface of the material, resulting an unclear metallography image that is difficult to identified. In general, the material commonly used for polishing is alumina paste. Alumina paste is expensive and takes a few minutes to produce a smooth and flat surface. In this research, polishing was done by using several metal polisher other than alumina paste, these were magic***, auto***, bras**, ki*, menze*** and pri** which are sold cheaply at supermarkets or online stores. Analysis was carried out on the surface of the polishing by these materials and the etching surface. The test results showed that the material that is polished with magic *** has the smoothest surface or has the least residual scratches compared to other materials even compared to alumina paste, but has the disadvantage of corrosion forming on some parts of the surface. The best polishing time was obtained on polishing for 3 minutes
Pengaruh Holding Time Annealing terhadap Perubahan Mikrostruktur Baja Struktur S690QL dan S235JR Ari Wibowo; Hanifah Widiastuti; Nurul Laili Arifin; Nugroho Pratomo Aryanto
JURNAL INTEGRASI Vol 13 No 1 (2021): Jurnal Integrasi - April 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v13i1.2881

Abstract

The S690 and S235JR structural steels are widely used in heavy equipment for the main frame structure. In general, the fabrication processes of heavy equipment involve welding processes that could change the mechanical properties of the materials. Therefore, in the fabrication process involving those steels, a heat treatment process is carried out after welding to modify the mechanical properties. The heat treatment process is conducted mainly to eliminate residual stresses and to reduce brittleness through the annealing process. In this study, annealing was carried out on the two steels to observe the effect of the heat treatment process on the hardness and microstructure of the material. The annealing process was conducted at 760 oC, holding time varied at 2, 4, 6, 8 and 10 hours, and a cooling rate of 20 oC/hour. After the annealing process, observations with a metallurgical microscope were done to see the final microstructure, followed by testing material hardness using the Rockwell B method. The test results showed that the annealing holding time affected the phases and grain size as well as the hardness of the steel S690 and S235JR. The largest grain size is formed with a holding time of 10 hours while the lowest hardness is also obtained at a holding time of 10 hours. Annealing holding time also affects the phase change from fine bainite to ferrite with large grains on S690 and reduces the size of pearlite on S235JR. The test results also show that long holding time has the potential to cause a decarburization effect on steel.
Co-Authors Abda Abda Adhe Aryswan Adi Irawan Setiyanto Adi S.P Andy Parulian Siregar Annisa Fyona Aprilia, Elin Ari Wibowo Ari Wibowo Arif Darmawan Ariyanto, Nugroho Pratomo Aulia Fajrin Auliana Diah Wilujeng Baehaqi Baharudin, Budi Bambang Sahputra Batubara, Ninda Hardina Benny Haddli Irawan Benny Haddli Irawan Benny Hadli Irawan Budi Baharudin Budi Baharudin Cahyo Budi Nugroho Cinantya, Prajwalita Daniel Sutopo Pamungkas, Daniel Sutopo Dety Febrianti Domi Kamsyah Domi Kamsyah Domi Kamsyah Fadhil Al Fadjri, Muhammad Fajrin, Aulia Fathurrahman Fedia Restu Fyona, Annisa Gemala, Mega Godlief F. Neonufa Hendra Saputra Hendra Saputra Hermana, Rifki Ihsan Saputra Ihsan Saputra Irawan, Benny Haddli Ita Wijayanti James Siregar Kamsyah, Domi Kurniawan, Ded Lalu Giat Juangsa Putra Lalu Giat Juangsa Putra Leksonowati, Nur Fitria Pujo Liony Lumombo Lumombo, Liony Luthfiya Ratna Sari Manurung, Meilani Mandalena Mega Gemala Meida Perwira Antartika Meiti Pratiwi Meschac Timothee Silalahi Mufti Fathonah M Mufti Fathonah Muvariz Muhammad Hasan Albana Muhammad Ismail Muhammad Zaenuddin Muhammad Zainuddin Lubis Muslim Ansori Mutiarani Mutiarani Mutiarani Mutiarani Muvariz, Mufti Fathonah Naufal Abdurrahman Naufal Abdurrahman Naufal Abdurrahman Prasetyo Nidia Yuniarsih Nidia Yuninarsih Ninda H.B Nisrina Afifah Novianti Nugroho Pratomo Ariyanto Nugroho Pratomo Aryanto Nur Fitria Pujo Leksonowati Nur Fitria Pujo Leksonowati Nurman Pamungkas Nurul Laili Arifin Nurul Laili Arifin, Nurul Laili Nurul Ulfah Pamungkas, Nurman Parlin Jhony Haposan Siagian Perkasa, Veryawan Nanda Pujo Leksonowati, Nur Fitria Purba, Adi Syahputra Rahman Hakim Rahman Hakim Rahman Hakim Rahman Hakim Rahman Hakim Rahman Hakim Rasarandi, Farouki Dinda Restu, Fedia Riyadi, Achmad Didi Rosbandrio, Wowo Saprin Epraim Surbakti Sapto Wiratno Satoto Saputra, Ihsan Silaban, Andre Kevil Siregar, James Stefani, Windy Tatang H. Soerawidjaja Tatang Hernas Soerawidjaja Thohari, Ahmad Hamim Tirto Prakoso Ulfah, Nurul Veryawan Nanda Perkasa Widodo Widodo Widodo Widodo Widodo Wijayanti, Ita Wirawan, Adhitomo Wowo Rossbandrio Yogantara Yogantara Yudy Pratama Yuris Setyoadi