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All Journal Jurnal Teknologi Jurnal Dinamika Penelitian Industri JST ( Jurnal Sains Terapan ) JURNAL INTEGRASI Journal of Research and Technology INOVTEK POLBENG QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Journal of Welding Technology Jurnal Teknologi dan Riset Terapan (JATRA) Jurnal Cakrawala Maritim Jurnal Cakrawala Maritim Jurnal Teknologi Maritim PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Muhamad Ari
Politeknik Perkapalan Negeri Surabaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Journal : journal of welding technology

 1 
Hot tapping process analysis on gas distribution pipes online service using Shielded Metal Arc Welding Budi Prasojo; Yunan Sadli Nasution; Endah Wismawati; Subagio So’im; M. Ari
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.v4i1.2953

Abstract

In a piping system makes it possible to add branching into an existing piping system. In this research will discuss about installation 12 " branch pipe in to 16” existing pipe. The system should be installed without interrupting the operation of the pipeline to avoid huge losses. Hot-tapping is a technology that works to create branching on the online service pipe condition. Calculation and analysis of the results to ensure the process of hot-tapping absolutely safe to operate. parameters that must be considered include the heat input, the operating pressure during welding hot-tapping process with Shielded Metal Arc Welding, stress that occurs at the branching system. Analysis on split tees must be done because of stress that occurs due to the welding process and the reduction in thickness. Analysis on the plumbing system must be done because of a new branching thus causing new stress. The results of the analysis on split tees and the pipe system is used as a reference-making procedures for implementing hot-tapping. Maximum stress that occurs in the pipes during hot-tapping process is the welding area (22.828 psi). The welding process causes melting partial in the metal pipe so, during welding process (hot-tapping) working pressure should be reduced by 25.27%. The condition of the fluid in the existing pipeline still safe because liquefaction as a result of the welding process does not penetrate to the inner pipe. The new design results in branch pipe eligible to fabricated because stress that occurs is still below the allowable stress values
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 ˚.
Desain tangki timbun external floating roof kapasitas 75000 MT Kevin Satria Nugraha; Muhamad Ari; Mochammad Al Amin Karim Al Amin
Journal of Welding Technology Vol 2, No 2 (2020): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v2i2.2063

Abstract

Storage tanks are widely used in industry, especially as a storage area for oil and gas mining products. Various types of storage tanks are made based on the pressure, the type of fluid stored and the type of roof used. The roof on the storage tank is divided into a fixed roof, internal floating roof and external floating roof. Floating roof is used as a barrier between the fluid and the empty space in the tank so as to minimize the occurrence of vapor space and the possibility of a fire in the tank. This study discusses the design of an external floating roof storage tank for condensate fluid with a capacity of 75000 metric tons. The design process for the shell course and other parts of the stockpile tank is based on the API 650 standard 12 addendum 2018 edition using the variable design point method. Verification of the results of calculations generated manually is done with finite element software. Manual calculations for the construction of an external floating roof heap tank get the minimum shell plate thickness used is 10 mm. The bottom plate was found to be 8 mm thick. The simulation using finite element software produces the maximum stress values on the shell, shell to bottom, and roof, namely 1.937 MPa, 7,122 MPa, 0.216 MPa, respectively. All stresses that occur are still below the allowable stress of the material. So it can be concluded that the tank construction is still safe
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.
Analysis of welding time on microstructure, hardness, and torque of arc stud welding process Amri, Moh. Syaiful; Mukhlis, Mukhlis; Ari, Muhammad; Wibowo, Alvalo Toto; Isworo, Annas Dwi
Journal of Welding Technology Vol 6, No 2 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v6i2.5739

Abstract

The manufacturing industry plays an important role in improving the national economy. One of the metal joining methods currently used is arc stud welding. Stud welding is used for welding bolts, which are useful for connecting parts in steel structures. This research was conducted with variations in current strength parameters of 200A, with welding times of 1, 2, and 3 seconds. The purpose of this research is to find the best parameters to determine the depth of penetration, heat-affected zone, and fusion zone of welding joints in A36 material. Macro testing results show that there are no defects such as cracks in the base metal, HAZ, or weld metal, meeting the ASME Sec. IX acceptance requirements. In addition, since the heat input remained within acceptable limits in the base metal areas of A36 and SS 304, the microtest results did not show significant changes. In the hardness test, the weld metal region obtained the highest value. The lowest average value was 192.85 HVN in the stud 1 specimen, while the highest average value was 195.37 HVN in the stud 3 specimen. The torque test shows that variations in welding time affect the torque strength; in specimen 3, it ranges from 50 Nm to 80 Nm.
Co-Authors Adhi Setiawan Alaek Nu’man Alfidani Dwi Maharani Alfinura Fajrin Alfriansyah Aditya Alivia Nur Fadhila Amar Sastra Adi Anda Iviana Juniani Andiana, Rocky Augustino, Immanuel Freddy Bachtiar Budi Prasojo Budi, Hendri Budi Kurniyanto Budianto Budianto Budianto Budianto Chelvin Sugiarto Dhika Aditya Purnomo Dika Anggara Edy Prasetyo Hidayat Edy Setiawan Endah Wismawati Eriek Wahyu Restu Widodo Erlina Kusumawati Faiz Hamzah, Faiz Fajar Astuti Hermawati Fajrin, Alfinura Fipka Bisono Galih Anindita Habibi, Tsaaqif Haani Hakim, Achmad Reyhan Fajar Haruri, Rikko Harli Hendri Budi K I Made Kastiawan Robert Firmandus, I Made Kastiawan I. K. Suastika Ilham Kurniawan Imam Khoirul Rohmat Indri Santiasih Isworo, Annas Dwi Kevin Satria Nugraha Kusminah, Imah Luluk Lukman Handoko M. Miftahul Munir M. Thoriq Wahyudi Meida Perwira Antartika Meida Perwira Antartika Mochammad Karim Al Amin Moh. Miftachul Munir Moh. Syaiful Amri Mohammad Thoriq Wahyudi Muhammad Affandi Muhammad Saka Hafshah Mukhlis Mukhlis Mukhlis Munir, M. Miftahul Munir, Moh. Miftachul Nilasari, Arita Rochma Novi Eka Mayangsari Nur Azizah Pranowo Sidi Prastyawan, Rikat Eka Puguh Pribadhi Rega Kurniawan Rizha Agustian Dwi Susanto Rizki Noviana Damayanti Rohman, Muhammad Yuqal Abi Ruddianto Ruddianto . Sa'diyah, Rahmatus Subagio So’im Totok Yulianto Vinky Try Octavia Wahyudi, Mohammad Thoriq Wibowo, Alvalo Toto Wiediartini Wiediartini Yuansa Septianto Yudi Andika Yunan Sadli Nasution