Sandia Optimization
&
Analysis
Routines
for automated welding
ISOSPOT-2D
ISO-2D
SPOT-3D
ISOEDGE
ISO-3D
ISO-2.5D
WELD-3D
YAG
HAZTEMP
ISOSPOT-3D
ISO3D.GAUSS
WELD-2.5D
WELD-2D
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The ISO-2.5D Application
Moderately thick plate solution
ISO-2.5D is a general purpose application for determining the temperatures
adjacent to a weld when plate thickness is not thin, but for which thickness
must be accounted (2+1/2D heat flow) . The user must input the weld
procedure and ISO-2.5D will graphically produce the temperature fields
in the surrounding base metal for the chosen metal or alloy.
The model is based on the Rosenthal moving point source series solution
to the conduction heat flow equation for moderately thick
plates.
The output graphics depict a heat source traveling over a semi-infinite plate with finite thickness. Constant temperature contours may be either wholly contained within the plate thickness or be truncated at the plate thickness.
ISO-2.5D also calculates 10 quality parameters including melting efficiency, width, penetration, and root size sensitivity, temperature sensitivity, thickness sensitivity, and power sensitivity.
ISO-2.5D is applicable to any
fusion welding process where the heat
source is moving and melting of the base metal occurs. ISO-2.5D can be used for gas tungsten arc welding, plasma arc welding,
oxy acetylene welding, laser welding, and other processes where filler
metal is not deposited.
ISO-2.5D currently can be used for 19 metals and alloys: 304, 15-5PH, and17-4PH stainless steels, 1018, HY80, and HY130 steels, Hastelloy C4, C22, and B2, Kovar, 1100 and 6061 Aluminum, Ti-6Al-4V, Inconel 625, and 718, Nickel 200, 110 Copper, Tin, and Molybdenum.
