[step-manufacturing] Reminder conference call: validating manufacturing tolerances using digital twins

[Christian Caillet]

Hello,

Unfortunately I can't join today. Just a remark about the last point, to 
propose in AP238E2 to associate with an operation, a design tolerance. 
There is already a possibility (to be checked ?) : because an operation 
can be associated to a machining feature, we can get PMIs attached to it 
as a shape_aspect (dimensions, tolerances). This makes the feature play 
a role of pivot, giving an indirect access to tolerances attached to it.


Le 16/10/2017 à 13:24, Martin Hardwick a écrit :
>
> All,
>
> My proposal is we have further discussions on how to define and 
> validate manufacturing tolerances using digital twins.
>
> For Boxy we made multiple in-process models and defined tolerances on 
> those models. This was a lot of work.
>
> For the fishhead we may not want to repeat this work and it is not so 
> practical because of the 5-axis machining.
>
> The color models we are making (see below) show that it is reasonably 
> easy for a digital twin simulator to detect when a face is being 
> machined by an operation.
>
> Therefore, for Edition 2 of AP238 we may want to add semantics to 
> associate a design tolerance with an operation so that internal or 
> external software can validate conformance (perhaps to a weaker value) 
> at the end of the operation.
>
> Martin Hardwick
> Convener WG15 Digital Manufacturing
>
>
> Digital Twin Machining
>
>
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Datakit <http://www.datakit.com>
*Christian CAILLET*
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*DATAKIT*
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