HP INCFollow


Some 3D printing 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 responsible for maintaining a homogeneous

temperature over the whole print bed, this temperature is close to the powder material fusing

temperature. On this stage current implementations use infrared sensor cameras to provide feedback to

the lamp controller trying to meet required irradiance level.

In a second stage a subsystem called fusing lamps attached to the printing carriage rise temperature to

the melting point on printed areas. On current implementations for this second stage there is not

feedback during fusing process. Lamps are previously calibrated using external tools and complex

processes; and there is no option on printer to adjust irradiation after calibration process.

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