The ability to get under the surface of a topic is something that really motivates us as Metal Additive Manufacturing magazine. Whilst our latest issue is where you can find all of our current articles, here we present content from our extensive archive in an easy to read, easy to share format.
Browse by the following topics or use our search bar at the top of the page to find articles of interest. All articles can also be downloaded in their original format through our complete magazine archive.
In recent years, Australia’s SPEE3D has made waves in the AM industry with its Cold Spray-based metal Additive Manufacturing systems. Following successful projects with the US and Australian military, and multiple installations at one of Europe’s most experienced metal AM parts manufacturers, the world is starting to take note.
Alex Kingsbury visited the company at its Melbourne base for Metal AM magazine and spoke with its founders and newly expanded management team about its technology and international expansion.
Additive Manufacturing is not a cheap production process. The software, machine time, materials and expertise required to make the most of the technology all come at a significant cost. The resulting financial pressures may give rise to the temptation to select a material on its price and view advanced topology optimisation as a luxury.
As Jon Meyer, APWORKS, and John Barnes, The Barnes Group Advisors, demonstrate, the unique capabilities of AM mean that basing material choice on cost without considering the impact of material performance on the mass of the part is a false economy, limiting the competitiveness of AM and the potential of an application.
X-ray Computed Tomography (CT), also widely known as MicroCT, is a proven method for not only checking the structural integrity of AM parts – for example for unwanted porosity – but also for checking a build’s dimensional accuracy. The main advantage of the technique is, of course, the non-destructive nature of the assessment; however, there are also many misunderstandings about the capabilities and complexity of the technology.
Prof Anton du Plessis and Dr Jess M Waller review the application of CT testing in relation to metal AM and highlight the advantages of a move towards standardised test methods.
Thinking about metal Binder Jetting or FFF? Here is (almost) everything you need to know about sintering
With the arrival of high-volume metal Binder Jet systems and a growing interest in metal Fused Filament Fabrication, the AM industry is set for a new phase of growth. The ability to use this new generation of systems for the production of ‘green’ parts is, however, only half of the story.
The sintering of these parts to create large quantities of finished product to a consistent quality requires both an investment in furnaces that can cost in excess of $1 million each, and a thorough understanding of sintering. In this article, Prof Randall German, the leading authority on the science of sintering, outlines the process and its core challenges.