Die casting can achieve higher precision, so most of the surface and components do not have to be machined, can be directly used for assembly.
The surface of die casting is firm and wear-resistant.
Internal pores sometimes exist in die castings, and dispersed and small pores usually do not affect the use, but become external leakage pores after machining, which may affect the use.
However, in the following cases, die casting part of the surface needs to be machined.
Remove casting slant;
The dimension part that achieves higher accuracy;
Some shapes unpressed on the casting;
Remove the gate, discharge overflow system or extra parts due to process requirements;
The surface or shape of the casting is not up to the requirement due to wear or falling of the moulded parts.