Custom electroforms allow complex metallic shapes to be supplied that can not be otherwise replicated by normal machining methods; they can also be used as extremely precise volume changing devices. As the sole United Kingdom distributor for the Servometer product, Abssac is using the Servometer electroforming process in some technically advanced areas.
For example; as a volume compensator, the electroformed part can compensate for the changes in volume of a fluid in a sealed container. A bellows volume compensator is in effect a controlled precision bubble, which will change its volume to compensate for the changes in the fluid volume. Likewise, the same electroform can also be used as a thermalisation assembly, which accurately converts temperature change into a predicted linear motion. By filling a custom bellows assembly with an engineered fluid of known coefficient of expansion, any expansion or contraction extends or compresses the bellows, translating the motion into an accurate linear deflection.