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Significance and Use
4.1 Determining the properties of the feedstock powder used in these processes is a necessary condition for industry’s confidence in powder selection and ability to produce consistent components with known and predictable properties. The intention of this guide is to provide purchasers, vendors, or producers of metal powder to be used in additive manufacturing processes with a reference for existing standards or variations of existing standards that may be used to characterize properties of metal powders used for additive manufacturing processes. It will serve as a starting point for the future development of a suite of specific standard test methods that will address each individual property or property type that is important to the performance of metal-based additive manufacturing systems and the components produced by them. While the focus of this standard is on metal powder, some of the referenced methods may also be appropriate for non-metal powders.
1.1 This guide introduces the reader to techniques for metal powder characterization that may be useful for powder-based additive manufacturing processes including binder jetting, directed energy deposition, and powder bed fusion. It refers the reader to other, existing standards that may be applicable for the characterization of virgin and used metal powders processed in additive manufacturing systems.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ISO StandardsISO 13320-1 Particle Size Analysis - Laser Diffraction Methods - Part 1: General Principles ISO 3923-1, ISO 3923-2 Metallic Powders, Determination of Apparent Density ISO 4497 Metallic Powders, Determination of Particle Size by Dry Sieving ISO 8302 Thermal Insulation - Determination of Steady-State Areal Thermal Resistance and Related Properties - Guarded-Hot-Plate Apparatus
ICS Number Code 77.160 (Powder metallurgy)
UNSPSC Code 31133700(Powdered metals and metal alloys)
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ASTM F3049-14, Standard Guide for Characterizing Properties of Metal Powders Used for Additive Manufacturing Processes, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top