Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc Welding
This paper presents a novel approach to welding thick steel plates that offers time and energy savings compared with conventional techniques. The combination of gas metal arc welding (GMAW) and hot-wire technology simplifies the joint configuration and enhances the process tolerance. In this study,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/6/1014 |
| _version_ | 1797593547049795584 |
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| author | Nattasak Suwannatee Motomichi Yamamoto |
| author_facet | Nattasak Suwannatee Motomichi Yamamoto |
| author_sort | Nattasak Suwannatee |
| collection | DOAJ |
| description | This paper presents a novel approach to welding thick steel plates that offers time and energy savings compared with conventional techniques. The combination of gas metal arc welding (GMAW) and hot-wire technology simplifies the joint configuration and enhances the process tolerance. In this study, a square butt joint was prepared with as-cut edges and a thickness of 15 mm. The relationship between the welding current and the deposition rate of solo GMAW showed limitations and low process tolerance. Increasing the welding current led to a larger deposited volume with unnecessary weld penetration. An independent deposition volume due to hot-wire insertion was used to improve process tolerance. This approach provided an additional volume without increasing the welding current and reduced unnecessary penetration. With optimized parameters, full-penetration single-pass welding was achieved. Compared with the formation of a typical single-v butt joint at a similar welding speed of 30 cm/min, the proposed process reduced the minimum arc time and power consumption by approximately 83% and 62%, respectively. Moreover, a single pass at a travel speed of 60 cm/min was achieved with approximately 91% and 81% less arc time and power consumption, respectively. In summary, the combined process simplifies the joint configuration, enables full-penetration single-pass welding, and reduces time and energy requirements. |
| first_indexed | 2024-03-11T02:10:52Z |
| format | Article |
| id | doaj.art-e0124c5dcb41472f91b74073e1656c72 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T02:10:52Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-e0124c5dcb41472f91b74073e1656c722023-11-18T11:35:38ZengMDPI AGMetals2075-47012023-05-01136101410.3390/met13061014Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc WeldingNattasak Suwannatee0Motomichi Yamamoto1Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 730-0046, JapanGraduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 730-0046, JapanThis paper presents a novel approach to welding thick steel plates that offers time and energy savings compared with conventional techniques. The combination of gas metal arc welding (GMAW) and hot-wire technology simplifies the joint configuration and enhances the process tolerance. In this study, a square butt joint was prepared with as-cut edges and a thickness of 15 mm. The relationship between the welding current and the deposition rate of solo GMAW showed limitations and low process tolerance. Increasing the welding current led to a larger deposited volume with unnecessary weld penetration. An independent deposition volume due to hot-wire insertion was used to improve process tolerance. This approach provided an additional volume without increasing the welding current and reduced unnecessary penetration. With optimized parameters, full-penetration single-pass welding was achieved. Compared with the formation of a typical single-v butt joint at a similar welding speed of 30 cm/min, the proposed process reduced the minimum arc time and power consumption by approximately 83% and 62%, respectively. Moreover, a single pass at a travel speed of 60 cm/min was achieved with approximately 91% and 81% less arc time and power consumption, respectively. In summary, the combined process simplifies the joint configuration, enables full-penetration single-pass welding, and reduces time and energy requirements.https://www.mdpi.com/2075-4701/13/6/1014hot-wiregas metal arc weldingsingle-pass weldinglower energy consumption welding |
| spellingShingle | Nattasak Suwannatee Motomichi Yamamoto Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc Welding Metals hot-wire gas metal arc welding single-pass welding lower energy consumption welding |
| title | Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc Welding |
| title_full | Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc Welding |
| title_fullStr | Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc Welding |
| title_full_unstemmed | Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc Welding |
| title_short | Single-Pass Process of Square Butt Joints without Edge Preparation Using Hot-Wire Gas Metal Arc Welding |
| title_sort | single pass process of square butt joints without edge preparation using hot wire gas metal arc welding |
| topic | hot-wire gas metal arc welding single-pass welding lower energy consumption welding |
| url | https://www.mdpi.com/2075-4701/13/6/1014 |
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