Gränges launches low CTE aluminium alloy powder for aerospace and automotive applications

April 12, 2022

Gränges Powder Metallurgy has entered into the Additive Manufacturing market with its S220 AM (Courtesy Gränges Powder Metallurgy)
Gränges Powder Metallurgy has entered into the Additive Manufacturing market with its S220 AM (Courtesy Gränges Powder Metallurgy)

Gränges Powder Metallurgy, headquartered in Stockholm, Sweden, has launched its first aluminium alloy for Laser Beam Powder Bed Fusion (PBF-LB) Additive Manufacturing, the S220 AM from its DISPAL® family of high-performance aluminium. The alloy’s properties are said to be comparable to steel, but at a third of its weight, making it well suited to industries such as aerospace and automotive.

The S220 AM alloy has a high silicon content, characterised by low density and low coefficient of thermal expansion (CTE). Due to the fine silicon particles being evenly distributed in the matrix structure, the material is said to possess good wear and friction properties.

“I am not aware of any other alloy on the AM market that has such a low CTE,” stated Greta D’Angelo, Business Development Manager at Gränges Powder Metallurgy. “In the past, we had many success stories of customers replacing steel and carbon fibre applications with the conventional DISPAL S220. Now, we are excited to offer the same material for Additive Manufacturing, giving our customers the opportunity to take advantage of even more geometrical freedom in the design of their next-generation products.”

A low CTE is said to be crucial in applications that require extreme precision under high loads and high temperatures, such as linear technology and robotics. It is also a critical attribute in optical applications in the space industry, where a low CTE helps enable high precision communication at large distances.

Gränges Powder Metallurgy has experience in manufacturing aluminium powders that goes back over thirty years. The DISPAL S220 material was invented and commercialised in the 1980s as part of a larger family of alloys, so while the material itself is not new, its use in Additive Manufacturing marks the company’s entrance into the technology.

DISPAL S220 AM powder is currently not commercially available, however Gränges offers an Additive Manufacturing service via a global network of trusted partners. The service is not limited to the manufacturing of the components, but also offers support with part selection, development, engineering and quality assurance.

“We want to support our customers through the whole process, and deliver finished components of high quality, being that prototypes or serial production,” D’Angelo continued. “We are aware that onboarding a new material can be a daunting process, especially for a new technology like AM, therefore we take care of that part for our customers so that they don’t have to worry about it.”

Gränges Powder Metallurgy is working to develop a wide portfolio of both Additive Manufacturing aluminium powders and specialised additively manufactured aluminium alloys. More alloys are already reported to be in the pipeline, and are expected to be released before the end of the year.

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