process of joining materials to make parts from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing and formative manufacturing methodologies

Note 1 to entry: Historical terms include: additive fabrication, additive processes, additive techniques, additive layer manufacturing, layer manufacturing, solid freeform fabrication and freeform fabrication.

[SOURCE: ISO/ASTM 52900:2021, 3.1.2]

machine and auxiliary equipment used for additive manufacturing

[SOURCE: ISO/ASTM 52900:2021, 3.1.3]

section of the additive manufacturing system including hardware, machine control software, required set-up software and peripheral accessories necessary to complete a build cycle for producing parts

[SOURCE: ISO/ASTM 52900:2021, 3.1.4]

joined material forming a functional element that can constitute all or a section of an intended product

[SOURCE: ISO/ASTM 52900:2021, 3.9.1]

single process cycle in which one or more components are built by successive joining of material within the build space of the additive manufacturing system

[SOURCE: ISO/ASTM 52900:2021, 3.3.8]

bulk raw material supplied to the additive manufacturing building process

Note 1 to entry: This includes materials used for support structures, as long as they are removed in a separate post-processing step.

Note 2 to entry: This includes ancillary material that is essential to an AM machine and consumed during the production but not part of the final part

[SOURCE: ISO/ASTM 52900:2021, 3.6.5]

<of feedstock> defined quantity of feedstock with uniform properties and composition

[SOURCE: ISO/ASTM 52900:2021, 3.6.1]

<of feedstock> quantity of feedstock produced under traceable controlled conditions from a single manufacturing process cycle

[SOURCE: ISO/ASTM 52900:2021, 3.6.2]

<matter> material laid out, or spread, to create a surface

[SOURCE: ISO/ASTM 52900:2021, 3.3.7]