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All Journal Patria Artha Technological Journal Al-Ard: Jurnal Teknik Lingkungan JURNAL CRANKSHAFT Industrika : Jurnal Ilmiah Teknik Industri ARMATUR : Artikel Teknik Mesin dan Manufaktur Journal of Mechanical and Electrical Technology
Sumarjo, Jojo
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Aerospace Engineering Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : ARMATUR : Artikel Teknik Mesin dan Manufaktur

 1 
Mengurangi cacat spot welding pada proses pembuatan tuas rem belakang type KWBF dengan metode Taguchi di PT. Ciptaunggul Karya Abadi Azzahra, Salsa Fatima; Nugraha, Iwan; Sumarjo, Jojo
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 4 No. 2 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i2.4181

Abstract

The process of joining the Rear Brake Arm to resistance spot welding or spot welding is known to be found not a few defective products, consequently, it is essential to carry out study with the goal of minimizing defects in the Rear Brake Arm. Then there is still more to be researched concerning the influencet of spot welding parameters, especially the strong current associated with welding heat and plate thickness affecting the mechanical characteristics of spot welding on low carbon steel, in order to know the most appropriate combination of variables between welding current, welding time and plate thickness used. This research uses carbon steel plates (SPCC-SD) with a length of 1000 mm, a width of 200 mm, and a thickness on the plate of 3.2 mm. This research is intended to get the right parameters for the level of welding defects in the spot welding process. Spot welding is welded with the parameters of strong current (A) 7.5; 9.5; 9.9, Welding time (s) 1. 5; 1.7; 19 and load (Kg) 8; 10; 14. The process of improvement with the taguchi method there are two methods, namely the avarage method obtained research results showing that with a strong current of 9.9 amperes, welding time 1.9 second, and a load of 14 kg produces a good percentage of success compared to other variables. The component that is particularly crucial in the process of spot welding on the manufacture of Arm Rear Brake is the strong current. Then the S/N ratio method obtained results that show the smaller the results the better, so the setting of the spot welding machine in the manufacture of Arm Rear Brake with a strong current of 9.9 Ampere, welding time 1.9 second, and welding load of 14 Kg.Based on the Taguchi method researchers can find out the factors that are very influential on the process of Resisntace spot welding or spot welding, namely strong current, welding time, and load. From the results of research using the Taguchi method, the following are the right machine settings in the spot welding process, namely with a current strength of 9.9 Amperes, welding time 1.9 seconds and a load of 14 Kg.
Pembuatan dan Instalasi Pengujian Turbin Screw dengan Variasi Debit Aliran Habibie, Zhafran; Sumarjo, Jojo; Setiawan , Reza
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 5 No. 1 (2024): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v5i1.5148

Abstract

Screw type water turbine is one type of water turbine that has the potential to generate electricity on a small scale that is environmentally friendly, where this screw type water turbine is very suitable for rivers and irrigation flows in the territory of Indonesia. In this study, data analysis is aimed at the characteristics of the output power of the Archimedes screw turbine against the opening of the stopcock valve and testing is carried out on the modeling of this Pikohydro power plant including measuring water discharge, generator rotation, voltage, current, torque and generator output power and efficiency. In the process of making and testing screw-type water turbines, the addition of a water reservoir frame and a Weir V-Nocth discharge measuring device that measures the height of the discharge and the height of the turbine head tested. This study took place to determine the performance of screw turbines by testing variations in water discharge, by testing the Stopkran opening with 3 variations, namely ½ (38 mm wide), ¾ (50 mm wide), 1 (76 mm wide) with each producing water discharge 0.0045 m3 / s, 0.0065 m3 / s, 0.0078 m3 / s. The turbine tilt angle used is 30º and the turbine head is 0.9 m. The process of testing the tool is carried out in the open and the presence of PLN electric current, the goal is to make it easier to fill the water reservoir using a dip pump. After testing and calculating the data, the maximum result of shaft rotation is 1470 rpm with an output power of 53.7 watts at a discharge of 0.0078 m3/s. and maximum torque produced was 4.428 Nm at a discharge of 0.0045 m3/s and the maximum turbine efficiency of 0.078% at a discharge of 0.0078 m3/s.
Co-Authors Aripin Azzahra, Salsa Fatima Deri Teguh Santoso Gusniar, Iwan Nugraha Habibie, Zhafran Hanifi, Rizal Harahap, Maruli Hadiatma Lubis, Dinda Putri Muhammad Wahyudin, Muhammad Nugraha, Iwan Pratama, Firza Adhi Rayyan, Lazuardy Azfa Rivaldo, Andreyansen Santosa, Aa Saputra, Muhammad Daris Sayful Arif Sena, Boni Setiawan , Reza Ubaidillah, zacky Widianto, Eri