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Rodika
Politeknik Manufaktur Negeri Bangka Belitung
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PENGARUH VARIASI PARAMETER PENGELASAN TERHADAP KEKUATAN SAMBUNGAN HASIL FRICTION WELDING PADA BAJA ST.41 Ilham, Picki; Rodika, Rodika; Somawardi, Somawardi
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Friction welding is a type of welding that connects two materials with the heat generated by the material itself so that it does not require additional materials. Heat can occur due to the presence of two objects rubbing against each other so that the material can melt and there is a connection due to forging process. The purpose of this study was to determine the impact strength of friction welding joints. The material used in this research is low carbon steel St.41 in the form of of a solid cylinder which has a diameter of 13mm. From the research that has been done, it is found that friction welding using 720 and 1000 rpm have better joint strength than using 450 rpm, which means that specimens with 720 and 1000 rpm have a higher amount of energy absorbed and impact values than specimens using 450 rpm.
Rancangan Dan Simulasi Alat Pemotong Bata Ringan Gerak Horizontal Ardiansyah, Rizki; Rodika, Rodika; Idiar, Idiar
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 1 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i1.355

Abstract

This research aims to design and simulate a Hebel-type lightweight brick cutting machine with a horizontal motion system to improve cutting efficiency and precision at the TACON Tangan Construction production house in Bangka Belitung. The development of this tool is based on the needs of small industry players to increase productivity and reduce production costs, because most of the cutting process is still done manually. The design uses the VDI 2222 method which includes the planning, concept development, technical design, and design completion stages. This machine works with an electric motor transmission system that drives the cutting wire through an eccentric shaft, resulting in horizontal reciprocating motion. Simulation results using SolidWorks show that the machine works stably, efficiently, and safely. The design considers aspects of ergonomics, safety, and ease of maintenance. Theoretically, this design can increase cutting effectiveness by up to 40% and support the productivity of lightweight brick manufacturing.
Fabrication of Aluminium Matrix Composite Powder Reinforced with Silicon Dioxide Tailings for Non-Asbestos Brake Pads (NOB) Sukanto Sukanto; Ilham Ary Wahyudie; Erwanto Erwanto; Yudi Oktriadi; Rodika Rodika; Ricky Irwansyah; Husman Husman; Devrin Dwiki Saputra; Haradat Tahrir Algaza
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.9208

Abstract

Tin mining tailings consist of 80-90% sand and the rest mud.  The high levels of Silicon Dioxide (SiO2) in these tailings are hard and can be used as an added material in the manufacture of composites.  This research aims to study the physical and mechanical properties of metal matrix composites reinforced with SiO2 powder processed by powder metallurgy, as an effort to provide a replacement material for Non-Asbestos (NOB) motorbike brake linings.  The impact of hot compaction pressure in the form of two pressing directions, including 4600, 4500 and 4400 Psi, with a pressing hold of 15 minutes and sintering which includes 30, 20 and 10 minutes, at a temperature of 600 ºC was studied for its effect on hardness and density.  Mechanical blending was used with a horizontal ball mill in the ratio of 10:1 at a speed of 90 rpm for 4 hours.  The test results showed that the greater the hot compaction pressure and the longer the sintering, the higher the hardness and density values.  The highest hardness reached 81.7 HB and the highest density of 2.385 g/cm3 occurred at a bidirectional hot compaction pressure of 4600 Psi, with the lowest wear rate of 0.333 mm3/m. This occurs as a result of the increase in hot compaction has an impact on increasing the contact between powder particles resulting from mechanical alloying to be tighter as a result of which the cavity and porosity decrease
Co-Authors Ade Guna, Tegar Agung Supriyadi Agus Wanto Aji Sultan Ajid Fathurahman Aldi Pranata Andre Rowanda Ardi Meilianto Ardiansyah, Rizki Ari Dwi Saputra Aripki Widianto Aryono Priyambudi Aswin, Fajar Bilal Nur Ikhsan Budi Otomo Budi, Abdul Deka Setiawan Devrin Dwiki Saputra dito yusuf akbar dito yusuf akbar Erwanto Erwanto Febrian Arif Feriadi, Indra Fricilya, Anita Hadi Nasbey Handriko Handriko Haradat Tahrir Algaza Harianto Harianto Husman Husman Husman Husman Idiar, Idiar Ilham Ary Wahyudie Ilham, Picki Indra Anggriawan Indra Suyipto Iqbal Kurniawan Irwansyah, Ricky Irwansyah, Riko Jamalludin Jamalludin M Romario4 Mansyah, Subhan Benazir Mego Wahyudi Muhammad Naufal, Muhammad Muhammad Rivai Muhammad Subhan Nuril Hanan Octadiansyah, Zacki Oktriadi, Yudi Putra, Gian Pratama Rahman, Adhe fajarul Rama Irdyan Rama Irdyan Reni Febrianti Ricky Irwansyah Ricky Irwansyah Ridani, Hafiz Nopal Riki Afriansyah Riska Ade Febryani Rizqi fadilah, Muhammad Robert Napitupulu Saputra, Maula Sateria, Angga Somawardi Somawardi Subkhan Subkhan Subkhan Subkhan Subkhan, M.T. Sukanto Sukanto Sukanto Sukanto Sutiryo Sutiryo Syaifullah R, L. M. Syihabuddin Attabrizi Syukori Putra, Nurul Tresnov Switella, Argona Tuparjono . Wahyudi, Mego Wanto, Agus Wiryono, Sukanto Yudi Oktriadi Yuli Dharta Zaldy Kurniawan