Casting pattern colour for machining

[AdrianRParticipant @adrianr18614]

I understand why a foundry would need to know about cores and hence have black colour. But why do they need do they need to know which surfaces need to be machined or not, yellow and red?

Do they do something special for them?

Adrian

[AdrianRParticipant @adrianr18614]

[JasonBModerator @jasonb]

Possibly so you can put the gates on the surface to be machined so that the ones that won't get machined will not be marked

[Martin ConnellyParticipant @martinconnelly55370]

For a machining allowance probably. If there is a casting skin that needs to be removed then there will need to be extra metal to allow for this. There is probably a code for chills to be added as well.

Martin C

[Author]

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