Key mould is a specialised tool used for the fabrication of duplicate keys through the casting process. This device typically consists of two corresponding halves that, when assembled, form the cavity into which molten metal or another suitable material is poured to set into the shape of the key. The accuracy of the mould determines the precision of the resulting key, impacting its fit and function in the lock mechanism.
Key moulds are crafted from various materials, including metal and silicone, each selected for its properties such as heat resistance, durability, and flexibility. Metal moulds are prised for their longevity and ability to produce highly accurate key duplicates. In contrast, silicone moulds offer flexibility and are easier to work with, particularly for amateur locksmiths or hobbyists. The choice of material affects the quality of the key produced, influencing factors such as strength, corrosion resistance, and the level of detail achievable in the key design.
The use of key moulds spans several applications beyond simple key duplication. They are essential in locksmithing, forensic science for investigative purposes, and historical key reconstruction for archival and restoration projects. The technology and materials used in key moulds continue to evolve, reflecting advances in metallurgy and manufacturing techniques, which enhance the effectiveness and efficiency of key production.