Pattern making is one of the first and most important steps in the casting process. Though many factors can have an impact on quality, a casting is only ever as good as its tooling.
For efficient and cost-effective castings, high-quality foundry pattern making is of vital importance.
The “pattern” is essentially a replica of the object about to be cast. Usually made out of wood, metal or model board, patterns are used to create cavities in moulds. It is through pouring molten metal into these moulds that aluminium castings are created.
Many factors have to be taken into consideration when designing a pattern to ensure the best and most cost-effective results. For example, some designs are simple and allow for easy removal from the mould. However some castings are complex and require careful pattern design / manufacture which can include the need for core assemblies to ensure patterns can be removed easily from the moulds.