Moulding

Moulding (or molding) is the shaping of raw material using a solid frame of a particular shape, called a pattern. It is a process used in manufacturing. A mould is a hollow container that will hold the liquid material until it turns solid. The liquid hardens or sets inside the mould, adopting its shape. Materials commonly used in moulding include plastic, metal, glass and ceramic.^[1]

Tyres are made using moulds, where the molten rubber is poured into the mould and then left to set. Moulds can vary greatly in size. They are usually made of hardened steel which can resist wearing.

1. ↑ "Moulding Process - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2021-07-20.