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Casting - Die

Geometry or Cost Engine Changes that Could Impact Configured Digital Factories

The following changes might impact costing, even for Digital Factories that use earlier cost model versions.

  • Turning Axis Extraction (can Impact routing and operation assignment): In the previous release, in rare cases, aPriori extracted turning axes for a part and routed it to a turning process even though only a small portion of the part's features could be turned. In this release, by default, aPriori extracts a turning axis only if at least 5% of the part's surface area is turnable. Administrators can customize this threshold with the new site variable minTurnAxisAreaRatio (0.05 by default).

    As a result, routings and costs may change (for example, a part that was erroneously routed to a turning process in the previous release might be routed to milling in this release).

    Note:

    To restore the behavior of the previous release, set the minTurnAxisAreaRatio to 0.00.

  • Material-specific Manufacturability Thresholds: This release corrects a problem that occurred only for cost models configured to select Gravity Die Casting by default. During geometry extraction, minimum castable wall thickness, hole diameter, and ring width are looked up by the part's material type in the following lookup tables:

    • tblWallThickness
    • tblMinHoleDiameter

    These tables contain different values for High Pressure Die Casting and Gravity Die Casting. In the previous release, by default, geometry extraction relied on the High Pressure Die Casting values in the lookup tables, since High Pressure Die Casting is selected by default in starting point Digital Factories. And it relied on the Gravity Die Casting values if you manually included Gravity Die Casting. But it incorrectly relied on High Pressure Die Casting values for cost models configured to select Gravity Die Casting by default. In this release, geometry extraction relies on Gravity Die Casting values by default for such configured cost models.

    For cost models configured to select Gravity Die Casting by default, the manufacturability of some features may change from CAST to CAST_AND_MACHINED or MACHINED, and some features may change from CAST_AND_MACHINED to MACHINED. As a result, for such configured cost models, operation assignments may change and costs may increase compared to the previous release.

Bug Fixes or Small Improvements to Prior Cost Model Versions

The following changes might impact costing for Digital Factories that use earlier cost model versions.

  • NO IMPACT

Cost Model Changes that Do Not Affect Configured Digital Factories

The following changes do not affect costings with Digital Factories that use earlier cost model versions. The changes are available only in the latest cost model version.

  • NO IMPACT