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Pengaruh kecepatan weaving terhadap keseragaman dan Lebar Manik Las dengan Ketinggian Torch 2 mm Pada Pengelasan Orbital pipe welding (OPW) SS316L Prasetyo, Eko; Baskoro, Ario Sunar; Silalahi, Yabes Gomest; Fikri, Muhammad; Kiswanto, Gandjar
Prosiding SNTTM Vol 22 No 1 (2024): SNTTM XXII Oktober 2024
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/590887

Abstract

Pipe welding is widely used in industries with piping systems, including the oil, construction, and manufacturing industries. Several parameters, including the width of the weld bead, can determine the quality of good welding results. In this research, pipe welding was carried out automatically in the 5G position using GTAW (Gas Tungsten Arc Welding) without metal filler (Autogenous). Welding tests were carried out to determine the effect of weaving speed on the uniformity of weld bead width from 0° to 360° and the weld bead width of 316L Stainless Steel pipes with an inner diameter of 4 inches and a thickness of 4 mm using a zigzag (weaving) welding pattern. The welding method uses the Pulse Current Gas Arc Welding (PC-GTAW) method with a current of 137 A and a background current of 10 PPS (Pulse Per Current). Test samples were taken at 4 (four) welding points, namely 0°, 90°, 180° and 270° with a torch height of 2 mm to the test object. The test was carried out with 3 (three) variations of weaving speed, namely 0.150 mm/s, 0.155 mm/s, and 0.161 mm/s. The welding tool used is a prototype orbital pipe welding tool using the 5G method, which is then carried out by forming a test object. Weld bead width was measured using a digital microscope model Dino-Lite AM 4515ZT and DinoCapture 3.0 software. The bead width measurements show that the most consistent weld bead width uniformity occurs at a weaving speed of 0.155 mm/s. Meanwhile, the average weld bead width at a weaving speed of 0.150 is 10.26 mm; at a weaving speed of 0.155 mm/s, it is 10.44 mm; and at a weaving speed of 0.161 mm/s, the average weld bead width is 9.8 mm.
Design and Analysis of Orbital Pipe Welding Prototype for Piping System Welding Applications Widyianto, Agus; Baskoro, Ario Sunar; Kiswanto, Gandjar
Journal of Automotive and Mechanical Applied Technology Vol. 1 No. 1 (2024): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamat.v1i1.797

Abstract

Welding the joints of pipes is often required for maintenance and repairs in industrial applications, where pipes are frequently used. A prototype of an orbital pipe welding machine was constructed, and its design, analysis, and construction were carried out. The goal of this endeavor was to improve the quality of the welding process as well as overall productivity. The design study was carried out with the assistance of the SolidWorks program, which allowed for the determination of the stress, strain, displacement, and factor of safety imposed on the gear section throughout the welding and pipe installation process. During pipe installation, the gear section experiences maximum stresses of 3.920e+12 MPa, 5.029e+05 MPa, and 2.239e+06 MPa, respectively. These stresses are a result of the pipe being installed. When the pipe is installed, the highest strain in the gear section is 1.802e+01%, 3.030e-06%, and 8.439e-06%, respectively. This strain happens when the pipe is installed. In addition, the maximum displacement in the gear section is 3.074e+09 mm, 3.215e+04 mm, and 6.312e-03 mm, respectively, when the pipe is mounted and the pipe is installed. With a value of 1.5, the analysis results demonstrated that the maximum stresses, strains, and displacements in the gear section during the welding process are sufficient to fulfill the requirements for the critical safety factor. This demonstrates that the orbital pipe welding equipment may be utilized to generate welds of superior quality while simultaneously enhancing both productivity and efficiency through its utilization.
Effect of deposition current on bead geometry characteristics of low carbon steel single wall structure fabricated by wire arc additive manufacturing Danny Wicaksono; Ario Sunar Baskoro; Nicholas Ego Guarsa; Gandjar Kiswanto; Syarif Junaidi
Mechanical Engineering for Society and Industry Vol 5 No 2 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.14623

Abstract

Wire arc additive manufacturing (WAAM) is gaining popularity due to its ability to produce large metal parts quickly and efficiently. It produces less waste and has a more efficient production time than subtractive manufacturing. However, those capabilities come with unavoidable disadvantages, post-processing by machining becomes necessary to achieve the desired product dimension. Therefore, this research aimed to evaluate the bead geometry and utilization area of the WAAM-fabricated structure by varying the deposition current. The wall-structured specimens were fabricated using gas metal arc welding (GMAW) with motorized drivers for x, y, and z coordinates. The material used in this research was low carbon steel ER70S-6 filler metal with ASTM A36 low carbon steel substrate. The Varying parameter was deposition current with other related process parameters remaining constant. Material testing and characterization techniques included geometric measurement by profile projector plotted into a scattered diagram, and the cross section of the specimens were observed using a digital microscope. The experiment resulted in increased bead dimension in width and height along with increased deposition current. The largest bead dimension was achieved in 180A deposition current with average bead width and height was 6.84 mm and 1.6 mm respectively. The best deposition current was 160A, with highest area utilization of 81.43% and width uniformity.
Surface waviness of weld bead (layer) of GTAW based wire arc additive manufacturing process Sentana, Agus; Syahbardia; Nugroho, Mabel Agung; Baskoro, Ario Sunar
Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Vol. 16 No. 1 (2026): Teknobiz
Publisher : Magister Teknik Mesin Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/pjxva503

Abstract

Additive manufacturing has become a focus of industry and research due to the many new developments in processes and systems. This is further strengthened by the trend of resource efficiency, as manufacturing processes towards additive manufacturing offer the possibility of producing close to the required size shape. Additive manufactured products can experience surface imperfections assessed in this study, namely the morphology profile or surface curvature (surface waviness) of the weld bead layer. Generally, surface curvature can be referred to as a "hump" caused by the welding process. To achieve the target of achieving products with relatively minimal surface waviness, experiments and analysis of the manufacturing process using GTAW additive welding on AA 6061 substrate material with ER 5356 filler were conducted. The experiments were carried out by first determining the process parameters and factors that affect the quality of the weld bead layer. The layers stacked in layers were measured for their width and height geometry, surface waviness tests were conducted, and analysis was carried out. The deposition rate or filler deposit, travel speed, and filler feed speed determine the level of surface waviness. In this study, high surface curvature occurred at a wire feeder speed (WFS) of 25 mm/s with a travel speed (TS) of 80 mm/min.