Parameter Optimization of Orbital TIG Welding on Stainless Steel Pipe

Orbital TIG welding is widely applied to weld pipes to pipes in many fields, such as food, chemicals, oil, gas, and transportation. Optimizing welding parameters such as voltage, current, and travel speed is critical to achieve a good-quality weld. This study investigated the impacts of orbital weld...

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Main Authors: Thien Tran Ngoc, Van-Thuc Nguyen, Thanh Trung Do, Van Huong Hoang, Dinh Ngoc Huy, Ha Tan Phat, Van Thanh Tien Nguyen
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/6/3227
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author Thien Tran Ngoc
Van-Thuc Nguyen
Thanh Trung Do
Van Huong Hoang
Dinh Ngoc Huy
Ha Tan Phat
Van Thanh Tien Nguyen
author_facet Thien Tran Ngoc
Van-Thuc Nguyen
Thanh Trung Do
Van Huong Hoang
Dinh Ngoc Huy
Ha Tan Phat
Van Thanh Tien Nguyen
author_sort Thien Tran Ngoc
collection DOAJ
description Orbital TIG welding is widely applied to weld pipes to pipes in many fields, such as food, chemicals, oil, gas, and transportation. Optimizing welding parameters such as voltage, current, and travel speed is critical to achieve a good-quality weld. This study investigated the impacts of orbital welding parameters and filler wire diameters on the tensile strength of 304 stainless steel pipes. The 304 stainless steel pipe has an outer diameter of 76 mm and a thickness of 2 mm. Filler wire is used with the workpiece, and is available in three diameters of 0.8 mm, 1 mm, and 1.2 mm, wire feed speed from 3.8 mm/s to 5.6 mm/s, current from 90 A to 110 A, and travel speed fixed at 5.5 mm/s. The highest tensile strength of 562 MPa was achieved with heat input of 0.32 kJ/mm and wire feed speed of 3.8 mm/s. In addition, the best parameters via the Taguchi method were found. The parameters’ influence trends on the weld quality were also revealed.
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series Applied Sciences
spelling doaj-art-618eccae3faa4e238b30709cfb7de9dd2025-08-20T03:43:37ZengMDPI AGApplied Sciences2076-34172025-03-01156322710.3390/app15063227Parameter Optimization of Orbital TIG Welding on Stainless Steel PipeThien Tran Ngoc0Van-Thuc Nguyen1Thanh Trung Do2Van Huong Hoang3Dinh Ngoc Huy4Ha Tan Phat5Van Thanh Tien Nguyen6Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, VietnamFaculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, VietnamFaculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, VietnamFaculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, VietnamFaculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, VietnamFaculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City 71307, VietnamFaculty of Mechanical Engineering, Industrial University of Ho Chi Minh City, Nguyen Van Bao Street, Ward 4, Go Vap District, Ho Chi Minh City 70000, VietnamOrbital TIG welding is widely applied to weld pipes to pipes in many fields, such as food, chemicals, oil, gas, and transportation. Optimizing welding parameters such as voltage, current, and travel speed is critical to achieve a good-quality weld. This study investigated the impacts of orbital welding parameters and filler wire diameters on the tensile strength of 304 stainless steel pipes. The 304 stainless steel pipe has an outer diameter of 76 mm and a thickness of 2 mm. Filler wire is used with the workpiece, and is available in three diameters of 0.8 mm, 1 mm, and 1.2 mm, wire feed speed from 3.8 mm/s to 5.6 mm/s, current from 90 A to 110 A, and travel speed fixed at 5.5 mm/s. The highest tensile strength of 562 MPa was achieved with heat input of 0.32 kJ/mm and wire feed speed of 3.8 mm/s. In addition, the best parameters via the Taguchi method were found. The parameters’ influence trends on the weld quality were also revealed.https://www.mdpi.com/2076-3417/15/6/3227filler wire speedheat inputtensile strengthmicrostructure
spellingShingle Thien Tran Ngoc
Van-Thuc Nguyen
Thanh Trung Do
Van Huong Hoang
Dinh Ngoc Huy
Ha Tan Phat
Van Thanh Tien Nguyen
Parameter Optimization of Orbital TIG Welding on Stainless Steel Pipe
Applied Sciences
filler wire speed
heat input
tensile strength
microstructure
title Parameter Optimization of Orbital TIG Welding on Stainless Steel Pipe
title_full Parameter Optimization of Orbital TIG Welding on Stainless Steel Pipe
title_fullStr Parameter Optimization of Orbital TIG Welding on Stainless Steel Pipe
title_full_unstemmed Parameter Optimization of Orbital TIG Welding on Stainless Steel Pipe
title_short Parameter Optimization of Orbital TIG Welding on Stainless Steel Pipe
title_sort parameter optimization of orbital tig welding on stainless steel pipe
topic filler wire speed
heat input
tensile strength
microstructure
url https://www.mdpi.com/2076-3417/15/6/3227
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