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View Full Version : How to identify die casting vs CNC?



NGrimberg
6th Mar 2020, 09:04 PM
Hello! How do you know if a product was made using CNC machining or die casting? Any inputs would be appreciated!

BaronJ
6th Mar 2020, 10:25 PM
Hi NGrimberg,

Careful examination !

Michael G
7th Mar 2020, 07:06 AM
The surface roughness/ appearance will be different (machined surfaces should show as machined while die cast will be a slightly matt surface - a bit like 2000 grit wet and dry). Die castings should also show some draft, so the sides will not neccessarily be at 90 degrees to each other, or there will be a ridge where two drafted surfaces meet). Machined parts should be flat and square.

Michael

elanjacobs
8th Mar 2020, 10:09 AM
You may also see marks from the ejector pins on die castings like these

385129