ASTM F2924-14 (R2021) pdf free download.Standard Specification for Additive Manufacturing Titanium-6 Aluminum-4 Vanadium with Powder Bed Fusion.
1.1 This specification covers additively manufactured titanium-6aluminum-4vanadium (Ti-6A1-4V) components using full-melt powder bed fusion such as electron beam melting and laser melting. The components produced by these processes are used typically in applications that require mechanical properties similar to machined forgings and wrought products. Components manufactured to this specification are often, but not necessarily, post processed via machining, grinding, electrical discharge machining (EDM), polishing, and so forth to achieve desired surface finish and critical dimensions.
1.2 This specification is intended for the use of purchasers or producers, or both, of additively manufactured Ii-6A1-4V components for defining the requirements and ensuring component properties.
1.3 Users are advised to use this specification as a basis for obtaining components that will meet the minimum acceptance requirements established and revised by consensus of the members of the committee.
1.4 User requirements considered more stringent may be met by the addition to the purchase order of one or more Supplementary Requirements. which may include, hut are not limited to. those listed in Sl-Sl6.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
3. 1 .3 heat, n—powder lot.
3.1.4 manufacturing lot, n—manufactured components having commonality between powder, production run. machine, and post-processing steps (if required) as recorded on a single manufacturing work order.
3. 1 .5 machine, n—a system including hardware, machine control software, required set-up software and peripheral accessories necessary to complete a build cycle for producing components.
3.1 .6 inanufacti.iring plan, u—plan including, hut not limited to the items in Section 6, written by the component supplier that specifies the production sequence. machine parameters and manufacturing control system used in the production run.
3.1 .6.1 Discussion—Manufacturing plans are typically required under a quality management system such as ISO 9001 and ASQ Cl.
3. 1 .7 near net shape, n—components that meet dimensional tolerance as built with little post processing.
3.1.7.1 Discussion—Near net shape components are typically used for, but not limited to. Class 4 components.
3.1.8 powder bed, n—refers to the build area in an additive manufacturing process in which feedstock is deposited and selectively melted with a heat source to build up components.
3.1 .8.1 Discussion—Powder bed processes are in contrast to other metal additive manufacturing processes in which powder or wire are fed simultaneously with the heat source. Powder bed processes include, but are not limited to. the processes know as selective laser melting, metal laser sintering, and electron beam melting.
3.1.9 powder blend, n—quantity of powder made by blending powders originating from more than one powder lot.ASTM F2924 pdf download.