AS ISO ASTM 52907 pdf download – Additive manufacturing — Feedstock materials — Methods to characterize metal powders
AS ISO ASTM 52907 pdf download – Additive manufacturing — Feedstock materials — Methods to characterize metal powders
1 Scope
This document provides technical specifications for metallic powders intended to be used in additive manufacturing and covers the following aspects:
— documentation and traceability;
— sampling;
— particle size distribution;
— chemical composition;
— characteristic densities;
— morphology;
— flowability;
— contamination;
— packaging and storage.
This document does not deal with safety aspects.
In addition, this document gives specific requirements for used metallic powders in additive
manufacturing.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2591-1, Test sieving — Part 1: Methods using test sieves of woven wire cloth and perforated metal plate
ISO 3252, Powder metallurgy — Vocabulary
ISO 3923-1, Metallic powders — Determination of apparent density — Part 1: Funnel method
ISO 3923-2, Metallic powders — Determination of apparent density — Part 2: Scott volumeter method
ISO 3953, Metallic powders — Determination of tap density
ISO 3954, Powders for powder metallurgical purposes — Sampling
ISO 4497, Metallic powders — Determination or particle size by dry sieving
ISO 13320, Particle size analysis — Laser diffraction methods
ISO 13322-1, Particle size analysis — Image analysis methods — Part 1: Static image analysis methods
ISO 13322-2, Particle size analysis — Image analysis methods — Part 2: Dynamic image analysis methods
ISO 22412, Particle size analysis — Dynamic light scattering (DLS)
ISO/ASTM 52900, Additive manufacturing — General principles — Fundamentals and vocabulary
ASTM B212, Standard Test Method for Apparent Density of Free-Flowing Metal powders Using the Hall Flowmeter Funnel
ASTM B214, Standard Test Method for Sieve Analysis of Metal powders
ASTM B215, Standard Practices for Sampling Metal powders
ASTM B243, Standard Terminology of Powder Metallurgy
ASTM B329, Standard Test Method for Apparent Density of Metal powders and Compounds Using the Scott Volumeter
ASTM B417, Standard Test Method for Apparent Density of Non-Free-Flowing Metal powders Using the Carney Funnel
ASTM B527, Standard Test Method for Tap Density of Metal powders and Compounds
ASTM B822, Standard Test Method for Particle Size Distribution of Metal powders and Related Compounds by Light Scattering
EN 10204:2005, Metallic products — Types of inspection documents
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 3252, ISO/ASTM 52900,ASTM B243 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
EDX
X-ray spectrometry in which the energy of individual photons is measured by a parallel detector and used to build up a histogram representing the distribution of X-rays with energy [SOURCE: ISO/TS 80004-13:2017, 3.3.2.4, modified — “EDX” has been kept as the only term and “are” has been changed to “is”]
4 Technical specifications
4.1 General
The supplier and customer shall choose the test methods appropriate to the customer’s requirements.
4.2 Documentation and traceability
To ensure traceability, statements of conformity and inspection documents shall specify the following:
— a unique document reference,
— the name and the address of the supplier,
— the reference of powder lot,
— the product description, including chemical composition, standard and/or trade/common name,
— the nature of powder production process (including e.g. type of gas used, environment conditions),
— the packaging description, including the packaging, the nature of the shielding gas and the desiccant bag, if relevant,
— the date of analysis,
— storage and preservation instructions,
— all of the information to ensure the traceability (e.g. order number, applicable specification).
NOTE 1 When a desiccant bag is in contact with the powder, it can be a source of contamination.
The inspection document shall comply with EN 10204:2005, 4.1.
The statement of conformity should follow ISO/IEC 17050-1.
The reported values shall be linked to the test method used and the corresponding standard. The relevant standards to characterize metallic powder or feedstock for additive manufacturing are detailed in this document. Powder characteristics shall be subjected to a prior customer/supplier agreement.
