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Powder characterization for additive manufacturing

It is of great importance that the quality of the metallic powder that is used in additive manufacturing is high, why it is important to be able to analyze and quality assure the raw material prior to the manufacturing.

Cause

The properties of metal powders intended for powder bed-based processes such as Laser Powder Bed Fusion (L-PBF), Metal Binder Jetting (MBJ), and Directed Energy Deposition (DED), etc, are critical to the process functionality as well as final material quality. There are several methods for characterizing the metal powder, which with the right interpretation provides a support in predicting or verifying the impact on the functionality. RISE provides a number of methods for characterizing the physical properties of a powder, flowability and packing ability, which affects the result in powder bed-based additive manufacturing (AM).

Method

Powder density is measured by heliumpycnometry (AccuPyk 1330, Micromeritics).

Particle size distrubution (PSD) is measured by laser diffraction (Mastersizer 3000, Malvern).

Specific surface area (SSA) is measured by gas adsorption using BET-methodology (Gemini II, Micromeritics).

Morphology (particle shape) is measured by image analysis in SEM.

The powder flowability is decisive for how feeding, spreading, and packing in a powder bed process work. A powder rheometer (FT4, Freemantech) is used to measure flow energy, bulk density in a conditioned and tapped state, cohesion and other flow-related parameters for correlation to processability. Traditional Hall flow is usually performed as complementary.

Deliveries

The results are delivered according to agreement, usually in the form of a written report, which can be supplemented with an oral presentation via PowerPoint.

More information

This is one of many services included in the Application center for additive manufacturing. For more information visit:

Application center for additive manufacturing's website

Ordering

Please order via email to the contact person(s) listed below

Facts

Service

Powder characterization of metallic powder for additive manufacturing

Innovation area

Additive manufacturing

Price

Price on tender

Preparations

No preparation needed

Anton Dahl-Jendelin

Contact person

Anton Dahl-Jendelin

Laboratorieingenjör

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Contact person

Sepehr Hatami

Forskare

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Contact

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