Properties and standards for metal Additively Manufactured parts

Properties of metal AM parts

As the way materials are processed in metal AM differs from the processing method of other metal manufacturing technologies, it follows that the microstructure, defects, and therefore properties of metal 3D printed parts will differ as well. As a general rule, most metal AM parts will meet or exceed the property requirements of cast parts. Wrought properties are by far the most challenging to equal; however, heat treatment or HIP processes applied post-build are often successful in equalling wrought properties.

It is somewhat unfortunate that, for metal Additive Manufacturing processes to be accepted, parts must abide by the property requirements set by conventional processes. Like the use of conventional alloys, it makes much more sense for a new set of property specifications to be developed for AM processes. However, to gain more widespread acceptance, AM processes must currently fit within the conventional materials and processing certification frameworks.

Subscribe to our weekly newsletter
Sign up

Standards for metal AM parts

The international body governing all worldwide standards is the International Standards Organization (ISO). Various countries and jurisdictions around the world have their own standards bodies, but work is coordinated by ISO so that standards can be globally harmonised. For an industry as globally relevant as AM, internationally harmonised standards are the only way to standardise and therefore further develop and rapidly commercialise metal 3D printing technologies.

Standards for metal Additive Manufacturing cover all aspects of the technology, from the definition of AM process terminology, to defining test conditions, the specification of feedstock materials, supplier agreements, property requirements, and build conditions. In addition to these AM-specific standards, many industry-specific standards also apply to metal 3D printed parts, such as aerospace and medical standards.

Initially, the ISO/TC261 committee set out several standards specific to AM. However, the ASTM (the American Society for Testing and Materials) F42 committee has developed many more standards pertaining to AM via its Centers of Excellence, member countries, and small grants scheme. As a result, ISO and ASTM have more recently been jointly developing many standards for AM. Participating countries around the world can be involved in standards development via their own standards bodies. Participation is via joint working groups.

> Next page: Applications for metal Additive Manufacturing technology

Download Metal AM magazine

In the latest issue of Metal AM magazine

Download PDF

Extensive AM industry news coverage, as well as the following exclusive deep-dive articles:

  • Metal powders in Additive Manufacturing: An exploration of sustainable production, usage and recycling
  • Inside Wayland Additive: How innovation in electron beam PBF is opening new markets for AM
  • An end-to-end production case study: Leveraging data-driven machine learning and autonomous process control in AM
  • Consolidation, competition, and the cost of certification: Insight from New York’s AM Strategies 2024
  • Scandium’s impact on the Additive Manufacturing of aluminium alloys
  • AM for medical implants: An analysis of the impact of powder reuse in Powder Bed Fusion

The world of metal AM to your inbox

Don't miss any new issue of Metal AM magazine, and get the latest industry news. Sign up to our twice weekly newsletter.

Sign up

Discover our magazine archive…

The free to access Metal Additive Manufacturing magazine archive offers unparalleled insight into the world of metal Additive Manufacturing from a commercial and technological perspective through:

  • Reports on visits to leading metal AM part manufacturers and industry suppliers
  • Articles on technology and application trends
  • Information on materials developments
  • Reviews of key technical presentations from the international conference circuit
  • International industry news

All past issues are available to download as free PDFs or view in your browser.

Browse the archive

Looking for AM machines, metal powders or part manufacturing services?

Discover suppliers of these and more in our comprehensive advertisers’ index and buyer’s guide, available in the back of Metal AM magazine.

  • AM machines
  • Process monitoring & calibration
  • Heat treatment & sintering
  • HIP systems & services
  • Pre- & post-processing technology
  • Powders, powder production and analysis
  • Part manufacturers
  • Consulting, training & market data
View online
Share via
Copy link
Powered by Social Snap