This paper describes the effectiveness of laser pulse shaping in eliminating weld defects such as porosity and cracking in pulsed Nd:YAG laser welding, as well as the influence of laser irradiation conditions on pulsed YAG laser melting tendency and great susceptibility of A5083P-0 to solidification cracking and porosity in laser weld metals.

Topics
Lasers, Fracture mechanics, 3D printing, Welding
1
K.
Haruta
 and
Y.
Terashi
: “High Power Pulse YAG Laser Welding of Thin Plate”, ed. by
A.
Matsunawa
 and
S.
Katayama
,
Proc. LAMP ’92
(
1992
/
June
),
Nagaoka
, pp.
499
–
504
.
Google Scholar
 
2
K.
Okino
, et al.: “1.8kW CW Nd:YAG Laser Application”,
Proc. ICALEO ’89
, (
1989
/
Nov
.),
Orlando
.
Google Scholar
 
3
I.
Norris
,
T.
Houle
,
C.
Peters
 and
P.
Wileman
: “ Material Processing with a 3kW YAG Laser”, ed. by
A.
Matsunawa
 and
S.
Katayama
,
Proc. LAMP ’92
(
1992
/
June
),
Nagaoka
, pp.
499
–
504
.
Google Scholar
 
4
T.M.W.
Weedon
: “Nd-YAG Lasers with Controlled Pulse Shape”,
Proc. LAMP ’87
,
Osaka
, (
1987
/
May
), pp.
75
–
80
.
Google Scholar
 
5
“
Metals Handbook, Vol.6, Laser Beam Welding
”,
by the ASM Committee on Laser Beam Welding
, pp.
647
–
671
.
6
S.
Katayama
 and
C.D.
Lundin
: “
Laser Welding of Commercial Aluminum Alloys
”,
J. of Light Metal Welding & Construction
, Vol.
29
(
1991
), No.
8
, pp.
349
–
360
. (in Japanese)
Google Scholar
 
7
M.J.
Cieslak
 and
P.W.
Fuerschback
: “
On the Weldability, Composition, and Hardness of Pulsed and Continuous Nd:YAG Laser Welds in Aluminum Alloys 6061, 5456 and 5086
”,
Metallurgical Transactions B
, Vol.
19B
(
1988
), pp.
319
–
328
.
https://doi.org/10.1007/BF02654217
Google Scholar
Crossref
Search ADS
 
8
H.
Simidzu
,
F.
Yoshino
,
S.
Katayama
 and
A.
Matsunawa
: “Pulsed Nd:YAG Laser Spot Welding of Aluminum Alloys”,
Proc. Lamp ’92
, (
1992
/
June
),
Nagaoka
, pp.
511
–
516
.
Google Scholar
 
9
A.
Matsunawa
,
S.
Katayama
,
H.
Muraki
 and
H.
Simidzu
: “
Rapid Solidification Microstructures and Microsegregation in Laser-Welded Single Crystals of Aluminum Alloys
”,
Proc. INALCO ’92
, (
1992
/
May
).
Google Scholar
 
10
I.
Masumoto
,
M.
Kutsuna
 and
J.
Suzuki
; “
Laser Welding of A5083 Aluminum Alloy
”,
Proc. the 5th, Int. Sym. of the Japan Welding Society (5JWS)
, (
1990
/
Apr
.), pp.
23
–
28
.
Google Scholar
 
11
R.A.
Cresswell
:
Welding Journal
, Vol.
36
(
1957
), No.
4
, p.
181
Google Scholar
 
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© 1993 Laser Institute of America.
1993
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