moulding-additive-manufacture > Transfer Moulding

Transfer Moulding involves forcing heated plastic into a mould cavity, similar to “Injection Moulding” however pressures used are much higher. The plastic that is forced into the cavity maybe liquid or a heated solid. The higher pressures mean higher tolerances and more intricate components can be produced.

The medium of plastic is placed into a pot above the mould cavity. A plunger or ram then forces the material into the cavity, which is often heated. If the material is solid, the combined pressure and heat from the mould melt it. The heated cavity ensures the material remains viscous and fills the entire cavity.

Another variation of this process is Resin Transfer Moulding which is commonly used to manufacture composite parts, for more details see “Resin Transfer Moulding”