Selective Electron Beam Melting (SEBM) working principle-Metal 3D Printing

March 15, 2025

What is SEBM 3D Printing

Selective Electron Beam Melting (SEBM) is an additive manufacturing technology that uses high-energy electron beams as an energy source to manufacture solid parts by melting metal powder layer by layer in a high vacuum environment. The principle is that the electron beam quickly scans and melts the spherical metal powder pre-laid on the forming base plate according to the planned path. After completing a layer of scanning and melting, the workbench drops to a certain height, and a new layer of powder is laid. The electron beam scans and melts again according to the path, and this process is repeated, layer by layer, to complete the manufacturing of metal parts from two-dimensional to three-dimensional.

Selective Electron Beam Melting SEBM metal 3D printing process principle
 Advantages of SEBM
  1. High energy absorption and conversion efficiency, fast forming speed.
  2. High electron beam power, capable of forming refractory metals.
  3. Uses powder raw materials selected by particle size, reducing overall part costs.
  4. High bed temperature allows forming of brittle and crack-prone materials, with low internal stress, minimal support dependency, and no need for post-heat treatment.
  5. Forming in a vacuum environment results in purer parts.
  6. Strong electron beam penetration enables deeper melt pools, resulting in denser formed parts.
Selective Electron Beam Melting SEBM metal 3D printing machine for industrial additive manufacturing of high-performance metal components
 Why Choose Greenstone SEBM
  1. Over 20 years of experience in fundamental research and process development of metal 3D printing.
  2. First in China to launch commercialized electron beam selective melting (SEBM) 3D printing equipment.
  3. Leading market share in the electron beam additive manufacturing field in China.
  4. Provider of a full range of metal 3D printing solutions.
  5. First clinical application of electron beam-printed titanium implants globally.
  6. Independent intellectual property rights in additive manufacturing equipment and process technology.
  7. Single gun maximum power of 6kW, forming size of 400×400×400mm.

David Cheung

Laser Cladding Technology Director & Advanced Manufacturing Process Expert David Cheung serves as Greenstone’s Laser Cladding Technology Director, specializing in advanced surface engineering technologies, laser cladding process development, material optimization, and industrial remanufacturing applications. With extensive experience in laser-based manufacturing technologies and metal surface enhancement processes, David leads the development and optimization of Greenstone’s laser cladding solutions, including powder-fed laser cladding, high-speed laser cladding, internal bore cladding, laser hardening, and integrated repair technologies. His professional expertise covers the complete technical workflow from material analysis, process parameter development, coating performance evaluation, and application validation to industrial implementation. By combining fundamental material…

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