Evaluating flowability of additive manufacturing powders, using the gustavsson flow meter

• The Gustavsson flow meter (including standard ISO-13517) is in this paper used to measure flow rate of fine AM powders. In the current paper, the results are compared to the Hall flow meter and a Freeman FT4 powder rheometer in terms of success of measuring these AM powders. The robustness is clearly superior to the Hall flow meter. Compared to using the rheometer, the Gustavsson flow meter is faster and simpler to use; however, other powder-aspects are evaluated since little correlation was found. All methods of characterizing the flowability could distinguish between (1) two alloys, and (2) if the alloys were new or used (in SLM), and (3) if they were dried or non-dried.

Nyckelord

3D printers

Compressive strength

Flow measurement

Flow rate

Powder metallurgy

Powders

Rheometers

Flowability

Powder rheometers

Flowmeters

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)