HP INCFollow


3D Multifusion technology is based on selective powder material fusion. In terms of temperature, this

fusing process is developed in two different stages.

In a first stage a subsystem called top heating is in charge of maintaining a homogeneous temperature

over the whole print bed, temperature should be held close to the powder material fusing threshold. To

achieve this infrared sensor cameras may be used to provide feedback to the lamp controller trying to

meet required irradiance level.

In a second stage after selectively applying fusing agents over the new layer a subsystem called fusing

lamps attached to the printing carriage raise the temperature to the melting point on printed areas. This

process is currently done in open loop without temperature feedback. Lamps are previously calibrated

using external tools and complex processes; and there is no option while printing to adjust irradiation.

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