Investigation on melting pool behavior and defects of laser welding

Zheng Qiguang; Gu Jianhui; Wang Tao; Wang Zhongke; Tao Xingzhi; Duan Aiqin

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ISSN 1001-3806 CN 51-1125/TN Map

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Volume 24 Issue 2

Sep. 2013

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Article Navigation > LASER TECHNOLOGY > 2000 > 24(2): 90-95

Citation:

Investigation on melting pool behavior and defects of laser welding

1.
National Laboratory of Laser Technology, HUST, Wuhan, 430074;
2.
High Energy Beam Processing Laboratory of National Defense

Received Date: 1998-12-04

Abstract

In this paper,a mathematical model of keyhole mechanism of laser deep welding has been analyzed.We studied the relationship of the stability of weld pool with metallic vapor pressure and the relationship of metallic vapor with plasma.The effect of laser weld parameters(including laser mode,laser power,focusing condition,welding speed and assistant gas etc.)on weld pool behavior have been investigated in detail.Finally,we also have analyzed the weld pool behavior related weld structure and defects(such as crack and porosity etc.).
- laser deep penetration weld,
- stability of melt pool,
- metal vapor recoil pressure porosity,

References

[1]	Banas C M.Opt Engineer,1978;17(3):210
[2]	Swift-Hook D T,Gick A E F.J Welding,1973;52(11):4925
[3]	Peretz R.Opt&Laser in Engneering,1986/1987;7:69～81
[4]	Dowden J M,Kapadia P,Postacioglu N.J Phys D,1989;22:741～749
[5]	Mazumber J,Steen W M.J A P,1980;51(2):941～947
[6]	Sonti N,Amateau M F.Numerical Heat Transfer,Part A,1989;16(3):351～370
[7]	Klemens P G.J A P 1976;47:2165～2174
[8]	Andrews J G,Ant hey D R.J Phys D,1976;9:2181～2194
[9]	Dowden J,David A B.J Phys D,1987;21(1):36～44
[10]	Anthony J R,David A B.ICAL EO’84,1984;44:8～16
[11]	Yang X,Yan Y,Peng S.ICAL EO’90,1990:480～490
[12]	Chan C,Mazumber J,Chen M M.Trans A,1984;15A(2):2175～2184
[13]	Rockstron T J,Mazumber J.SPIE,1986;668:145～149

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Investigation on melting pool behavior and defects of laser welding

1. National Laboratory of Laser Technology, HUST, Wuhan, 430074;
2. High Energy Beam Processing Laboratory of National Defense

Received Date: 1998-12-04
Available Online: 2000-03-25

Abstract: In this paper,a mathematical model of keyhole mechanism of laser deep welding has been analyzed.We studied the relationship of the stability of weld pool with metallic vapor pressure and the relationship of metallic vapor with plasma.The effect of laser weld parameters(including laser mode,laser power,focusing condition,welding speed and assistant gas etc.)on weld pool behavior have been investigated in detail.Finally,we also have analyzed the weld pool behavior related weld structure and defects(such as crack and porosity etc.).

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Reference (13)

[1]	Banas C M.Opt Engineer,1978;17(3):210
[2]	Swift-Hook D T,Gick A E F.J Welding,1973;52(11):4925
[3]	Peretz R.Opt&Laser in Engneering,1986/1987;7:69～81
[4]	Dowden J M,Kapadia P,Postacioglu N.J Phys D,1989;22:741～749
[5]	Mazumber J,Steen W M.J A P,1980;51(2):941～947
[6]	Sonti N,Amateau M F.Numerical Heat Transfer,Part A,1989;16(3):351～370
[7]	Klemens P G.J A P 1976;47:2165～2174
[8]	Andrews J G,Ant hey D R.J Phys D,1976;9:2181～2194
[9]	Dowden J,David A B.J Phys D,1987;21(1):36～44
[10]	Anthony J R,David A B.ICAL EO’84,1984;44:8～16
[11]	Yang X,Yan Y,Peng S.ICAL EO’90,1990:480～490
[12]	Chan C,Mazumber J,Chen M M.Trans A,1984;15A(2):2175～2184
[13]	Rockstron T J,Mazumber J.SPIE,1986;668:145～149

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Investigation on melting pool behavior and defects of laser welding

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通讯作者: 陈斌, bchen63@163.com

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Investigation on melting pool behavior and defects of laser welding

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