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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Rekayasa Mesin INOVTEK POLBENG QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Teknologi Terapan Journal of Welding Technology Jurnal Maritim Journal of Computer, Electronic, and Telecommunication (COMPLETE) Journal of Mechanical Engineering, Science, and Innovation Jurnal Cakrawala Maritim Jurnal Cakrawala Maritim Jurnal Teknologi Maritim International Conference on Maritime Technology and Its Application PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Dika Anggara
Politeknik Perkapalan Negeri Surabaya
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Journal : Journal of Welding Technology

 1 
Comparative analysis of hardness and microstructure of dissimilar welded materials at various welding positions in the fabrication industry Mochammad Karim Al Amin; Ilham Nurcholis; Wiwik Dwi Pratiwi; Dika Anggara; Eriek Wahyu R W
Journal of Welding Technology Vol 4, No 1 (2022): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v4i1.2967

Abstract

304 stainless steel is commonly used in industry due to the advantages of great conductivity, while SS 400 carbon steel is largely used in the various engineering field on purpose of industrial and fabrication. One of examples is penstock application in Tegal, Central Java, has been using more than one kind of dissimilar steel, SUS 304 and SS 400, and the various of welding position (1G, 2G, and 3G). Penstock was flowed water from the river for irrigation and raw water so that could be affected to decrease of the thickness of materials. This research was conducted on the dissimilar welding of SUS 304 and SS 400 by SMAW with the welding process of (1G), (2G), and (3). After the welding process, visual examination, hardness test, and microstructure were conducted to examine the quality of welded and hardness of the root and surface of weld. The visual test was shown that no defect, the highest of hardness was at the weld metal with 3G of welding position at 207.17 HVN (specimen 2B) while the lowest of hardness was 195.13 HVN with 2G position (specimen 2A). The microstructure of weld metal was austenite of white and delta-ferrite of black, delta-ferrite was vermicular.
Analisis variasi arus pengelasan Submerged Arc Welding pada proses build-up beam material SM490YA terhadap perubahan distorsi menggunakan metode eksperimen dan numerik Rega Kurniawan; Muhamad Ari; Dika Anggara
Journal of Welding Technology Vol 3, No 2 (2021): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v3i2.2507

Abstract

Proses Pengelasan SAW (Submerged Arc Welding) dengan arus besar secara kontinyu mengakibatkan panas yang masuk juga secara kontinyu pada satu titik. Hal ini mengakibatkan ekspansi yang signifikan jika terkena panas dan penyusutan jika mengalami pendinginan dan distorsi pada material. Pada penelitian ini, eksperimen dilakukan dengan variasi arus las. Pemodelan numerik struktural – termal dilakukan dengan software berbasis elemen hingga, dengan menggunakan data dari eksperimen sebagai validasi. Distrosi yang terjadi pada eksperimen dan pemodelan mendapatkan hasil yang mendekati. Distorsi sudut yang paling minimum pada eksperimen pengelasan SAW Single 450A sebesar 1,0˚ dan 1,2˚, sedangkan pada pemodelan numerik sebesar 1,15 ˚.
Corrosion Rate Analysis on SA 240 TP 904L Material Experience Multiple Repair Muhammad Ari; Dika Anggara; Amar Sastra Adi
Journal of Welding Technology Vol 5, No 1 (2023): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v5i1.4019

Abstract

Weld imperfections are likely to arise during any welding process. Due to the enormous number of joints that could result in weld defects, welding process faults could happen. Repair procedures are required to address welding defects. Multiple repairs are required if welding mistakes are made repeatedly. The duplex material used in this study is SA 240 TP 904L. By altering the repair procedure treatment 1x, 3x, 5x, and without repair, the welding process is carried out utilizing the SMAW method and E309L filler. Microstructure testing, ferrite content testing, and 3-electrode cell corrosion are the test techniques used. The relationship between the corrosion rate and the amount of ferrite content was deduced from the test data. The corrosion rate increases as the ferrite content rises due to several repairs.
Hardness Analysis of Aluminium 5083 A-TIG Welding Due to The Effect of Active Flux and Current Eriek Widodo; Dika Anggara; Moch. Karim Al Amin; M. Idris Al Jawwad
Journal of Welding Technology Vol 5, No 1 (2023): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v5i1.3886

Abstract

Aluminium allow has been widely used recently due to their high strength to mass ratio, good formability and high corrosion resistance have a wide range of applications in aerospace, ship-building and railway industries. The 5083 series aluminum is the most widely used due to good strength and corrosion resistance properties. Tungsten Inert Gas Welding (TIG welding) is the most common welding method for aluminum alloys. This research was conducted A-TIG welding on 150 x 100 x 8 mm of 5083 aluminium and added by oxide powder (MgCl2 and TiO2) as active flux and various of current consist of 100, 130, and 160 A. The result of this research was obtained that the deepest penetration was 4.94 mm with TiO2 active flux and the current of 160 A, the highest hardness came from weld metal which using MgCl2 as an active flux with 100 A of current with 69.80 HVN. The hardness was increased by adding magnesium due to effect of it could be increased grain coarse. The lowest hardness was on weld metal with TiO2 active flux with 160 A of current due to the maximum heat input which decreased the hardness The recrystallization was occurred due to increase of heat input, so did the grain growth. The coarse grain which caused the decreasing of hardness was affected by the increase of heat input.
Co-Authors Achmad Ilhamsyah Adhitya, Ryan Yudha Ahmad Putra , Zindhu Maulana Al Amin, M. Karim Amar Sastra Adi Amrullah, Haidar Natsir Annisa , Aulia Rahma Aprilian, Elham Ari, Muhamad Arif Rachman Bachtiar Bachtiar Bahtiar, Yudha Deny Wibisono Dianita Wardani Djati, Anggoro Ludiro Eriek Wahyu R W Eriek Wahyu Restu Widodo Eriek Widodo Fadillah, Mochamad Wildan Farrasy, Abiyyuda Putra Firiambodo, Suthoni Yoga Ilham Khoirul Ibad Ilham Nurcholis Imam Khoirul Rohmat Karim, M Khoirul Rohmat, Imam Kurniyanto, Hendri Budi Kusminah, Imah Luluk Lukman Handoko Luluk Kusminah, Imah M. Idris Al Jawwad Ma'ruf, Buana Maula Nafi Moch Iqbal Ramadhan Moch. Aria Firmansyah Moch. Karim Al Amin Mochammad Karim Al Amin Moh. Miftachul Munir Moh. Syaiful Amri Mohammad Afif Hamdani Mohammad Munir Mohammad Thoriq Wahyudi Muhamad Ari Muhammad Affandi Munir , Mohammad Miftachul Munir, Moh Miftachul Mustaghfirin, Muhammad Anis Mustain, Eko Nisazarifa, Adristi Prastyawan, Rikat Eka Pratama Putra, Mochammad Yudha Aditya Pratama, Bintang Priyambodo Nur Ardi Nugroho Purwanti, Endang Pudji Putera, Erwien Yuliansyah Rega Kurniawan Restu Widodo, Eriek Wahyu RR. Ella Evrita Hestiandari Ruddianto, Ruddianto Safrudin, Muhammad Ilham Sasongko, Kukilo Edy Septian , Eka Cahya Soelistijono, Rafi Febian Teddy Eka Wijaya Toto Wibowo, Alvalo Trianto, Ryo Andika Wahyu Restu, Eriek Wahyudi, M Thariq Wahyudi, Moh. Thoriq Wahyudi, Mohammad Thoriq Wibowo, Alvalo Toto Widodo, Erick Wahyu Restu Widodo, Eriek Wiwik Dwi Pratiwi Wiwik Dwi Pratiwi Yaqin , Muhammad Ainul