What Is Powder Fluidity Or Bulk Density In 3D Printing

       

What conditions should metal powder meet to meet the material
requirements of 3D printing? We should consider purity, powder particle size
distribution, powder morphology, powder fluidity and bulk density. Powder
fluidity directly affects the uniformity of powder spreading and the stability
of powder feeding in the printing process.

The fluidity is related to the powder morphology, particle size
distribution and loose density. The larger the powder particle, the more
regular the particle shape and the smaller the proportion of very fine powder
in the particle size composition, the better the fluidity; The particle density
remains unchanged, the relative density increases, and the powder fluidity
increases. In addition, the adsorption of water and gas on the particle surface
will reduce the fluidity of the powder.

Loose density refers to the
powder mass per unit volume when the powder sample is naturally filled with the
specified container. Generally, the coarser the powder particle size, the
greater the loose density. The powder with thickness matching can obtain higher
loose density. The influence of loose density on the density of the final metal
printing product is uncertain, but the increase of loose density can improve
the fluidity of the powder.

 

For more information about the 3D printing powder, spraying coat powder,
or WC based powder, you may search online wococarbide. Wococarbide.com provides
various products and technical questions and answers.

What conditions should metal powder meet to meet the material
requirements of 3D printing? We should consider purity, powder particle size
distribution, powder morphology, powder fluidity and bulk density. Powder
fluidity directly affects the uniformity of powder spreading and the stability
of powder feeding in the printing process.

The fluidity is related to the powder morphology, particle size
distribution and loose density. The larger the powder particle, the more
regular the particle shape and the smaller the proportion of very fine powder
in the particle size composition, the better the fluidity; The particle density
remains unchanged, the relative density increases, and the powder fluidity
increases. In addition, the adsorption of water and gas on the particle surface
will reduce the fluidity of the powder.

Loose density refers to the
powder mass per unit volume when the powder sample is naturally filled with the
specified container. Generally, the coarser the powder particle size, the
greater the loose density. The powder with thickness matching can obtain higher
loose density. The influence of loose density on the density of the final metal
printing product is uncertain, but the increase of loose density can improve
the fluidity of the powder.

 

For more information about the 3D printing powder, spraying coat powder,
or WC based powder, you may search online wococarbide. Wococarbide.com provides
various products and technical questions and answers.