EBM
By studying the thermal stresses and strains formed during the EBM process, this project aims to improve the geometrical freedom and accuracy of 3D printing to allow advanced heat exchangers and other relevant components.
Background
Currently I am working with two research topics. The first one is analysing the effect of scanning strategy on generations of thermal stresses during EBM additive manufacturing of IN625 from both experimental and simulation perspective. This is particularly important for the industry since many parts fail (and are wasted) during EBM AM due to this specific poorly understood issue. For this research, we are able to access the thermal stresses and strains formed during the EBM process on the samples produced with different scanning strategies. Now after analysing the data, we are going to publish the results with the help of analysis from department of engineering mechanics.
The other research work I am working with is the development of pure copper. For which I am focusing on the investigation on processing and geometrical freedom of copper components made by EBM. This is particularly important for the industry since it can potentially enable advanced heat exchangers and electrical motor components and hence allow more energy saving in various relevant systems. For this work, we are able to produce the near dense parts with a density over 99%.
Aims and objectives
We will try to improve the geometrical freedom and accuracy of the printing to allow advanced heat exchangers and other relevant intricate components.
Project plan
Applied interdisciplinarity
- At IIP, we produce the EBM components, testing and optimizing the parameters for pure copper
- With the help of MSE, we examine powders and test/analyse the microstructure of the parts.
- With the help of EGI, we will make demo heat exchangers enabling their studies
- With the help of the department of Engineering Mechanics, we set up and run the Ansys simulation to access the thermal stress of EBM made IN625.
- With the help of Northwestern Polytechnical University, we set up the Abaqus simulation to simulate the fracture, thermal stresses and equivalent plastic strains of the EBM made IN625 samples.
KTH collaborations
Asst. Prof. Chris Hulme Smith and Assoc. Prof. Greta Lindwall from MSE, Prof. Björn Palm and Dr Bassam Edmond Badran from EGI, Dr. Rami Mansor from the department of Engineering Mechanics
Departments: Energy Technology, Production Engineering, Material Science and Engineering
Other collaborations
Asst. Prof. Yuan Wei from Northwestern Polytechnical University
Duration
May 2021 – Och 2021 (Extended)
Project participants
