NADCA Video News Update: Die Casting Defects - Surface Defects Part I
There is not one single person that is responsible for die casting surface defect prevention. Everyone must participate. It’s not just the die casting tool room, die cast part designer, die casting machine operator, die casting machine set-up person, die casting inspector, etc. Anybody that is adding some value and designing the overall part has a role when it comes to minimizing defects.
The first two factors on the list, the wall thickness and the overall casting shape, are controlled by the part design - but they are very important as far as contributing to the surface defect problems. The wall thickness is the most critical, and controls:
- Fill time required
- Die temperature required
- Distance the metal will flow
- Length of defect free surface that can be made when we cast the part