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All Journal Manutech : Jurnal Teknologi Manufaktur Jurnal Inovasi Teknologi Terapan
Risky Arisandi
Politeknik Manufaktur Negeri Bangka Belitung
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Investigasi Kekakuan Pada Pelat Baja Lunak Dengan Pembentukan Metode Dimple Dies Triangle Profile Risky Arisandi; Erwanto Erwanto; Harwadi Harwadi
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.v4i1.403

Abstract

This study aims to analyze the effect of variations in the number and diameter of dimple holes on the stiffness of mild steel plates using the Dimple Dies Triangle Profile forming method. Plate stiffness is important for reducing vibrations, especially in vehicle components. The material used was a 0.6 mm thick galvanneal plate, with dimple diameters of 25 mm and 30 mm, and hole quantities of 16 and 20. Testing was conducted using a Vibroport 80 device to measure natural frequency as an indicator of stiffness. The experimental design employed the Taguchi method with an L4 orthogonal array to analyze the influence of each parameter. The results showed that the number of dimple holes significantly affected the plate’s natural frequency, while the dimple diameter had no significant effect. The optimal combination producing the highest stiffness was a 25 mm dimple diameter with 16 holes. ANOVA and S/N ratio analysis supported these findings, indicating that the number of holes contributed more than 90% to the variation. This research is expected to serve as a reference for developing stiffer and more vibration-resistant metal plate designs, particularly for automotive and other engineering structure applications.  
Kendaraan Angkut Sederhana Untuk Panen Kelapa Sawit Kapasitas Maksimum 300 Kilogram Erwanto Erwanto; Sukanto Sukanto; Risky Arisandi; Rifki Oktariandi; M. Ihsan Shabirin; M. Haafidz Effendi
Manutech : Jurnal Teknologi Manufaktur Vol. 18 No. 01 (2026): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v18i01.748

Abstract

The potential of palm oil commodities plays a significant role in economic growth in Bangka Belitung and is a key driver of current economic growth. One factor in successful palm oil harvesting is the use of appropriate harvesting equipment, from fruit picking to transportation to the processing plant. Harvested fruit is typically transported from trees to the processing plant using commonly sold pushcarts (angkong). Once collected, it is then transported using a motorcycle with a basket capable of carrying only approximately 150 kg. The poor condition of the infrastructure of oil palm plantations, slippery, potholed and muddy roads, causes the harvest to fail to be transported, so that the harvested fruit rots, and fails to be sold, causing farmers to suffer losses. To overcome this problem, one of them is the need for a simple oil palm transport vehicle powered by a combustion engine, with a capacity greater than a wheelbarrow (angkong) or two-wheeled vehicle that uses a transport basket, capable of passing through slippery, potholed and muddy plantation conditions, so that the harvest can be transported, can optimize the work of farmers, reduce the frequency of transportation so that it can be time efficient. Designed simply, utilizing locally available spare parts, thus facilitating handling, use and maintenance in the field. The transport vehicle made in this study uses a maximum capacity of 300 Kilograms that uses a manual pulley system for unloading, using mini tractor wheels, a 4X4 drive system that functions full time (full time Active), aiming to be able to face the conditions of the muddy, slippery and potholed plantation location.
Co-Authors Erwanto Erwanto Harwadi Harwadi M. Haafidz Effendi M. Ihsan Shabirin Rifki Oktariandi Sukanto Sukanto