Electron Beam Melting (EBM)

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What is Electron Beam Melting (EBM)?

Electron beam melting is one of the Powder bed fusion technologies, in which metal powder is melted and fused together layer by layer using a high electron beam. Powder bed fusion is one of the 7 types of Additive manufacturing technologies.

Electron Beam Melting (credit:GE)

Electron beam melting is a proprietary additive manufacturing technology from Arcam, a GE Additive company.

Advantages and Disadvantages of Electron Beam Melting

Like any manufacturing process, EBM has its own advantages and disadvantages.

Advantages of Electron Beam Melting

  • Geometric freedom for engineering product designers
  • Minimum material waste
  • Less tooling and set up costs
  • Residual stress reduction due to increased process temperature
  • Oxidation-reduction due to vacuum environment

Disadvantages of Electron Beam Melting

  • Commercially available material are limited
  • Surface finish similar to sand casting
  • Needs full understanding to get the full benefit of the process

How does the Electron beam melting work?

Refer to 12 step ” how Powder bed fusion works?

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