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The ISO-2.5D Application

Moderately thick plate solution

View the ISO-2.5D Control Panel

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

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.

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