Spreadability Testing of Powder for Additive Manufacturing

• The spreading of powders into thin layers is a critical step in powder bed additive manufacturing, but there is no accepted technique to test it. There is not even a metric that can be used to describe spreading behaviour. A robust, image-based measurement procedure has been developed and can be implemented at modest cost and with minimal training. The analysis is automated to derive quantitative information about the characteristics of the spread layer. The technique has been demonstrated for three powders to quantify their spreading behaviour as a function of layer thickness and spreading speed.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)

Keyword

Spreadability

Powder metallurgy

Additive manufacturing

Image analysis

Teknisk materialvetenskap

Materials Science and Engineering

Teknisk materialvetenskap

Materials Science and Engineering

Publication and Content Type

ref (subject category)

art (subject category)