HP INCFollow

Abstract

Cake is when a material “sticks” together with itself, leading to large spongy regions of powder.

It is an important factor in the printing of elastomers in Multi-Jet Fusion. Cake is caused by time

at temperature of the powder that causes the surface of the powder to flow, leading to change in

rheological properties of the powder. The more time at temperature the powder is exposed to, the

harder the cake will be.

Keeping the integrity of cake to test powder properties is incredibly difficult. It is sometimes

needed to check the behavior of the white powder on online tests but requires minimal alteration

to the printed white powder behavior.

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Creative Commons License
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