JWJ > Volume 33(6); 2015 > Article
Journal of Welding and Joining 2015 December;33(6) :27-35.
Published online December 31, 2015.
doi:https://doi.org/10.5781/JWJ.2015.33.6.27
A Study on HAZ Softening Characteristics of Fiber Laser Weldment for High-Strength Steel
Min-Ho Park*, Ill-Soo Kim*, Jong-Pyo Lee*, Byeong-Ju Jin*, Do-Hyeong Kim*, In-Ju Kim**, Ji-Sun Kim**
*Department of Machanical Engineering, Mokpo University, Mokpo 534-729, Korea
**Green mold Technology Center, Korea Institute of Industrial Technology, Gwang-ju 500-460, Korea
Correspondence: Ill-Soo Kim  Email: ilsookim@mokpo.ac.kr
  Published online December 31, 2015
ABSTRACT
Laser welding sector in the automotive industry has been widely recognized as one of the most importantbonding processes, such as parts welding. Efforts to improve productivity and weld quality have been progressing steadily. In addition, laser welding is suitable for welding process that can produce high-quality welds suitable for flexible production and small quantity batch productions. In order to ensure the rigidity of the material, high strength material are applied to more than 1 GPa class body parts and automotive bumper beams. However, not only the situation is that the trend of domestic research, but also development is based on product molding considering freedom of shape where reinforcement is applied to meet the safety regulations and high-speed crash performance, despite the use of high strength materials. The tendency for heat-affected zone (HAZ) softening phenomenon common in areas of laser welded high tensile steel welding confirmed the occurrence of weld softening effect according to the process parameters. Based on this, range of process parameters could be selected for ensuring weld quality.
Keywords: Fiber laser weld | High-strength steel | Heat affected zone | Softening effect | Penetration aspect
TOOLS
PDF Links  PDF Links
Full text via DOI  Full text via DOI
Download Citation  Download Citation
CrossRef TDM  CrossRef TDM
  E-Mail
Share:      
METRICS
2
Crossref
921
View
5
Download
Related articles
Laser Welding Characteristic of Dissimilar Metal for Aluminum to Steel  2017 September;35(5)
A Study on Laser Welding of the Seat Back Frame Applied by High Strength Steels   2017 June;35(3)
A Study on the Characteristics of Laser Deposition Surface and Cross-section for Metal Powder  2016 August;34(4)
Characteristics of Plasma Emission Signals in Fiber Laser Welding of API Steel (Ⅲ)  2013 June;31(3)
Hardening Characteristics and Carbon Equivalent in Laser Welds of Advanced High Strength Steels for Automobile  2011 December;29(6)
Laser Welding Characteristic of Dissimilar Metal for Aluminum to Steel  2017 September;35(5)
A Study on Laser Welding of the Seat Back Frame Applied by High Strength Steels   2017 June;35(3)
A Study on the Characteristics of Laser Deposition Surface and Cross-section for Metal Powder  2016 August;34(4)
Characteristics of Plasma Emission Signals in Fiber Laser Welding of API Steel (Ⅲ)  2013 June;31(3)
Hardening Characteristics and Carbon Equivalent in Laser Welds of Advanced High Strength Steels for Automobile  2011 December;29(6)
e-sciencecentral
Register for e-submission
Register here to access the e-submission system of Journal of Welding and Joining for authors and reviewers.
Manuscript Submission
To submit a manuscript, please visit the Journal of Welding and Joining e-submission management system at http://submit.e-jwj.org, read the Instructions for Authors, and log into the Journal of Welding and Joining e-submission system. For assistance with manuscript submission, please contact: koweld@kwjs.or.kr.
Free archive
Anyone may access any past or current articles without logging in.
Editorial Office
The Korea Science and Technology Building, New B/D, Room 503
Teheran-ro 7-gil, 22(635-4, Yeoksam-Dong), Gangnam-gu, Seoul 06130, Korea
TEL : +82-2-538-6511    FAX : +82-2-538-6510   E-mail: koweld@kwjs.or.kr
Browse Articles |  Current Issue |  For Authors and Reviewers |  About
Copyright© by The Korean Welding and Joining Society. All right reserved.