AdrianR | 24/04/2020 20:01:48 |
613 forum posts 39 photos | 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
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JasonB | 24/04/2020 20:07:09 |
![]() 25215 forum posts 3105 photos 1 articles | 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 Connelly | 24/04/2020 20:09:16 |
![]() 2549 forum posts 235 photos | 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 |
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