Analysis of vapor plume and keyhole dynamics in laser welding stainless steel with beam oscillation

Junzhao Li; Yibo Liu; Yujie Tao; Qinghua Zhang; Kexin Kang; Qi Sun; Qingjie Sun

doi:10.1016/j.infrared.2020.103536

Analysis of vapor plume and keyhole dynamics in laser welding stainless steel with beam oscillation

Junzhao Li
, Yibo Liu^*
, Yujie Tao
, Qinghua Zhang
, Kexin Kang
, Qi Sun
, Qingjie Sun

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology Weihai

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

The influence of laser welding with beam oscillation on dynamic behavior of vapor plume, melt pool and keyhole was investigated. The stability of plume morphology is improved with a little fluctuation, and the height and area of plasma plume are decreased as the oscillation frequencies increased. The melt pool morphologies and flowing feature under beam oscillation conditions are also regulated due to the resultant energy deposition, which has an influence on weld solidification process. The re-melting effect of circular beam oscillation can eliminate pores formation and improve weld quality.

Original language	English
Article number	103536
Journal	Infrared Physics and Technology
Volume	113
DOIs	https://doi.org/10.1016/j.infrared.2020.103536
State	Published - Mar 2021

Keywords

Beam oscillation
Keyhole
Laser welding
Vapor plume

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10.1016/j.infrared.2020.103536

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title = "Analysis of vapor plume and keyhole dynamics in laser welding stainless steel with beam oscillation",

abstract = "The influence of laser welding with beam oscillation on dynamic behavior of vapor plume, melt pool and keyhole was investigated. The stability of plume morphology is improved with a little fluctuation, and the height and area of plasma plume are decreased as the oscillation frequencies increased. The melt pool morphologies and flowing feature under beam oscillation conditions are also regulated due to the resultant energy deposition, which has an influence on weld solidification process. The re-melting effect of circular beam oscillation can eliminate pores formation and improve weld quality.",

keywords = "Beam oscillation, Keyhole, Laser welding, Vapor plume",

author = "Junzhao Li and Yibo Liu and Yujie Tao and Qinghua Zhang and Kexin Kang and Qi Sun and Qingjie Sun",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = mar,

doi = "10.1016/j.infrared.2020.103536",

language = "英语",

volume = "113",

journal = "Infrared Physics and Technology",

issn = "1350-4495",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Analysis of vapor plume and keyhole dynamics in laser welding stainless steel with beam oscillation

AU - Li, Junzhao

AU - Liu, Yibo

AU - Tao, Yujie

AU - Zhang, Qinghua

AU - Kang, Kexin

AU - Sun, Qi

AU - Sun, Qingjie

PY - 2021/3

Y1 - 2021/3

N2 - The influence of laser welding with beam oscillation on dynamic behavior of vapor plume, melt pool and keyhole was investigated. The stability of plume morphology is improved with a little fluctuation, and the height and area of plasma plume are decreased as the oscillation frequencies increased. The melt pool morphologies and flowing feature under beam oscillation conditions are also regulated due to the resultant energy deposition, which has an influence on weld solidification process. The re-melting effect of circular beam oscillation can eliminate pores formation and improve weld quality.

AB - The influence of laser welding with beam oscillation on dynamic behavior of vapor plume, melt pool and keyhole was investigated. The stability of plume morphology is improved with a little fluctuation, and the height and area of plasma plume are decreased as the oscillation frequencies increased. The melt pool morphologies and flowing feature under beam oscillation conditions are also regulated due to the resultant energy deposition, which has an influence on weld solidification process. The re-melting effect of circular beam oscillation can eliminate pores formation and improve weld quality.

KW - Beam oscillation

KW - Keyhole

KW - Laser welding

KW - Vapor plume

UR - https://www.scopus.com/pages/publications/85096599890

U2 - 10.1016/j.infrared.2020.103536

DO - 10.1016/j.infrared.2020.103536

M3 - 文章

AN - SCOPUS:85096599890

SN - 1350-4495

VL - 113

JO - Infrared Physics and Technology

JF - Infrared Physics and Technology

M1 - 103536

ER -

Analysis of vapor plume and keyhole dynamics in laser welding stainless steel with beam oscillation

Abstract

Keywords

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