creo4 config.pro option documentation for: ADD_WELD_MP 
add_weld_mp
yes
, no
*
When calculating mass properties, determines if welds are included or excluded from the calculation.
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|
Light weld mass property calculations are approximate, unless you specify weld section references. |
yes
- Includes welds when calculating mass properties.
no
- Excludes welds when calculating mass properties.