18255285. Fusing One or More Cross Sections by Electron Beam Powder Bed Fusion simplified abstract (Siemens Aktiengesellschaft)

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Fusing One or More Cross Sections by Electron Beam Powder Bed Fusion

Organization Name

Siemens Aktiengesellschaft

Inventor(s)

Jan Drendel of Berlin (DE)

Ruslan Logvinov of Bayreuth, Bayern (DE)

Frank Heinrichsdorff of Teltow (DE)

Fusing One or More Cross Sections by Electron Beam Powder Bed Fusion - A simplified explanation of the abstract

This abstract first appeared for US patent application 18255285 titled 'Fusing One or More Cross Sections by Electron Beam Powder Bed Fusion

Simplified Explanation

The abstract describes a method for fusing cross sections in a powder layer using electron beam powder bed fusion, where the cross sections are pre-sintered and then fused with different energy levels.

  • The method involves pre-sintering cross sections in a powder layer with a first line energy and then fusing them with a second line energy that is at least twice the first line energy.
  • This process allows for the precise layer-by-layer construction of objects using electron beam powder bed fusion technology.

Potential Applications

This technology could be applied in industries such as aerospace, automotive, and medical fields for manufacturing complex and customized parts with high precision.

Problems Solved

This method solves the challenge of achieving accurate fusion of cross sections in powder layers during additive manufacturing processes, ensuring the structural integrity of the final objects.

Benefits

The method offers improved control over the fusion process, leading to enhanced quality and strength of the manufactured objects. It also enables the production of intricate geometries with high repeatability.

Potential Commercial Applications

The technology can be utilized in the production of aerospace components, medical implants, and automotive parts, catering to industries that require high-performance and customized manufacturing solutions.

Possible Prior Art

One possible prior art could be traditional powder bed fusion methods that do not involve pre-sintering of cross sections before fusion, leading to potential issues with part quality and accuracy.

Unanswered Questions

How does the energy level affect the final properties of the fused objects?

The article does not delve into the specific impact of energy levels on the mechanical or material properties of the objects produced using this method.

Are there any limitations to the size or complexity of objects that can be manufactured with this technique?

The article does not address any restrictions or challenges related to the size or complexity of objects that can be produced using this fusion method.


Original Abstract Submitted

Various embodiments of the teachings herein include a method for fusing one or more cross sections in a powder layer for building one or more objects layer by layer with electron beam powder bed fusion. The method may include: pre-sintering only the cross sections in the powder layer by scanning the cross sections with a first line energy; and fusing the cross sections by scanning the cross sections with a second line energy. The second line energy exceeds the first line energy by at least a factor of 2.