Porosity from Past to Future: A Defect to Avoid Becomes an Added Value
Session 15 Tuesday 15 October 2019 08:30 - 10:00 Room: 0.2 / 0.3
Session Chairs
Dr Sebastian Hein
Fraunhofer IFAM, Germany
Mr Peter Kjeldsteen
Sintex a/s, Denmark
Introduction
It is now 30 years since EPMA was founded and lots of effort has been used in reducing or removing porosities of PM parts, as they had a strong negativeinfluence on the mechanical properties. But there is a reason why the windscreen of a car is so much larger than the rearview mirror: you must focus more on what comes up in the future compared to what happened in the past. With this Special Interest Seminar we would like to show how a disadvantage yesterday will become an opportunity tomorrow when working intelligently with powder metallurgy and the designs that are enabled when using new processing routes.The first EuroPM Special Interest Seminar in the sector of Functional Materials is dedicated to porosity, and divided in two parts. Within the first part there willbe a strong focus on porosity in metal parts, how it forms, in which ways it influences material properties but also what chances it may provide. In fact, this hardlyavoidable feature of sintered materials is generally thought to be detrimental when dealing with mechanical properties, but can be beneficial for other functions when controlled and tailored. The understanding of porosity, its effects and ways to create it in a reproducible manner will be covered in two presentations.
Presentations
Porosity in metals: From a problem to a chance
Dr Francisco Garcia-Moreno (Institute for Applied Materials, Helmholtz-Zentrum Berlin für Materialien und Energy, Germany)
08:30 - 09:15
Design of Porosity and Pore Size of Open Cell Porous Metal Structures
Dr.-Ing. Marcel Fink (Fraunhofer IFAM, Germany)
09:15 - 10:00
Porosity from Past to Future: Applications and Case Studies
Session 22 Tuesday 15 October 2019 11:00 - 12:30 Room: 0.2 / 0.3
Session Chairs
Dr Sebastian Hein
Fraunhofer IFAM, Germany
Mr Peter Kjeldsteen
Sintex a/s, Denmark
Introduction
Based on understanding the formation and the effects of porosity, covered in the first part of the Special Interest Seminar, the second part of the Seminar in the sector of Functional Materials will focus on applications of porous metal parts. After a short overview of applications, case studies will be presented by industrial partners, in which the production of parts with adjusted porosity and their specific use with porosity as a functionality, namely for biocompatibility, filtration and other specific tasks, will be shown.
Presentations
Applications of porous PM parts – An overview
Dr Sebastian Boris Hein (Fraunhofer IFAM, Germany)
11:00 - 11:15
Additive Manufacturing of integrated structures by Electron Beam Melting (EBM®)
Dr Mattias Fager (GE Additive – Arcam EBM, Sweden)
11:15 - 11:40
Porous sintered metal: from metal membrane filter for catalyst recovery to applications in renewable energy technologies
Dr Harald Balzer (GKN, Germany)
11:40 - 12:05
Analysis of the potential to realize porous structures with Laser Beam Melting
Dr Jakob Fischer (Heraeus AM, Germany)
12:05 - 12:30