TIG Welding GCD-level Options
The MIG Welding operation provides the following options, which can be set on a per-GCD basis:
Weld Cycle Time Method
Welding arc time (see the formula for
Weld Time in
TIG Welding Operation Weld Time) is determined in one of two ways:
• Volumetric Rate Method: based on the following:
o Weld volume
o Deposition rate (derived from the machine property Wire Feed Rate and an estimate of wire diameter)
• Linear Rate Method: based on the following:
o Weld length
o Number of Welding Passes, derived from
Weld Throat, or specified by the user
The volume method is used by default in starting point VPEs. Administrators can customize the default (for both MIG and TIG welding) by setting the cost model variable weldLinearFeedRate to true. Users can override the default with this setup option.
See the formulas for
Volume Method Arc Time and
Length Method Arc Time in
TIG Welding Operation Weld Time.
Assembly Material Type
By default in starting point VPEs, the weld is assumed to use Steel filler. Administrators can customize the default with the cost model variable defaultTigWeldingMaterialType. Users can override the default filler type on a part-by-part basis with this setup option. Select from the dropdown list, (which is populated from the Material Type column of the lookup table tblTigWelding).
Assembly Position
This specifies the position of the assembly during welding:
• Flat: the weld head is held above the weld.
• Horizontal/vertical: the weld head is held at the same height as the weld.
• Overhead: the weld head is held below the weld.
By default in starting point VPEs, the assembly position is assumed to be Flat. Users can override the default position on a part-by-part basis with this setup option. Select from the dropdown list, (which is populated from the Position column of the lookup table tblTigWelding).
Assembly position affects travel speed, which affects
TIG Welding Operation Weld Time, if the Linear Rate
Weld Cycle Time Method is enabled.
Travel Speed
If the Linear Rate
Weld Cycle Time Method is used, weld time is based, in part, on travel speed. By default, travel speed is derived from
Weld Throat,
Assembly Position, and
Assembly Material Type—see
TIG Welding Operation Weld Time. Users can override the default on a part-by-part basis with this setup option.
Number of Welding Passes
If the linear rate
Weld Cycle Time Method is used, weld time is based, in part, on the number of welding passes used for weld (that is, the number of times the weld head traverses the length of the weld). By default, the number of passes is derived from
Weld Throat—see
TIG Welding Operation Weld Time. Users can override the default on a part-by-part basis with this setup option.
Gas Type used for Welding
By default, the type of gas used for welding is specified by the cost model variable
defaultTigWeldingGasType (Argon in starting point VPEs). Users can override the default with this setup option. Gas type affects gas cost—see
Additional Direct Costs for TIG Welding.
Enable Anti-Spatter Spray
By default in starting point VPEs, costs for antispatter spray are included in expendable tooling costs—see
TIG Welding Expendable Tooling Calculation. Administrators can customize the default, and specify
no cost for antisplatter spray, by setting the cost model variable
weldAntiSpatterSprayEnabled to
false. Users can override the default on a per weld basis with this setup option.