What are Metal 3D Printers? Aist.go.jp Explains
Aist.go.jp provides an overview of metal 3D printing technologies, categorizing them into powder bed fusion and directed energy deposition.
The National Institute of Advanced Industrial Science and Technology (AIST) in Japan has published information detailing the landscape of metal 3D printing. These additive manufacturing technologies are broadly classified into two main categories: powder bed fusion and directed energy deposition.
Powder bed fusion methods involve using a heat source, such as a laser or electron beam, to selectively melt and fuse metal powder particles layer by layer. Examples of this technique include Selective Laser Melting (SLM) and Electron Beam Melting (EBM). This approach is known for its ability to produce complex geometries with high precision.
Directed energy deposition, on the other hand, involves feeding metal powder or wire into a focused energy beam, such as a laser or electron beam, or a plasma arc. The material is melted as it is deposited, building up the part layer by layer. This method is often used for repairing existing parts or adding features to them, as well as for building larger structures.
AIST's explanation highlights the fundamental principles and distinctions between these core metal additive manufacturing processes, providing a foundational understanding for those interested in the field.
Understanding the fundamental classifications of metal 3D printing, like powder bed fusion and directed energy deposition, is crucial for industrial adoption. These technologies enable the creation of complex, lightweight parts for demanding sectors like aerospace and automotive, reducing material waste and lead times compared to traditional subtractive manufacturing. This foundational knowledge underpins advancements in areas like in-situ resource utilization for space exploration.
Edited by the news editor with AI and translated into English from the original report — please refer to the original source.