Mold parting

Cutting surface of a two- or multi-part pattern.

The mold parting line may be either horizontal or vertical, depending on the molding process. In any case, the mold parting line must be designed such that demolding of a pattern without back drafts is easily possible. If a pattern has one or more back drafts, special measures must be taken (e.g. outer cores, loose pieces).

Additional references:
Mold parting burr