Michael Larson

Heat management in electrical devices is so important, and it is a key consideration as we create 3D-printed AME components. Conduction is important here, carrying heat energy where it needs to be. But insulation is important too – blocking heat energy from reaching sensitive electrical components.

So how do we combine the two during AME processes? By using multi-material printing to create thermal conductive insulation materials. Multi-material printing helps us deploy different materials side by side as part of a single print process.

But which materials?

Ceramics are an option. With ceramic materials, we can gain the dual benefit of high thermal conductivity and high electrical resistance. This means we can channel thermal energy to a heat sink without potentially causing a short circuit by channelling electrical current along with it. Fibreglass may also be used, as this provides additional tensile strength, developing robust components that stand up to the rigours of regular use.