Powder Bed Electron Beam 3D printing technology (SEBM) is one of the common metal powder 3D printing technologies. Its principle is to use high-energy electron beam to scan and heat the metal powder layer at high speed under vacuum protection, and directly form the parts by melting and stacking the metal powders layer by layer.

This technology has the characteristics of high energy utilization, fast scanning speed, high forming efficiency and high powder bed temperature in the forming process. It is formed in vacuum environment. It is especially suitable for forming the materials with high melting point, high activity, brittle & difficult to process, and highly reflective rate to laser. It has been widely used in biomedicine, aerospace, automobile and other fields.

Advantages of SEBM Y150 Printing System

  • Higher energy density, productivity and accurate with electron as energy carrier:when electron beam bombards metal powders, its low reflectivity and strong penetration ability can achieve deeper molten pool and larger forming layer thickness, so coarser powders can be used (lower material cost), and high-melting point metal materials can be molten with higher forming efficiency and compactness (wider application scope). The high-speed electron beam deflects more rapidly and accurately under the control of magnetic field.
  • Vacuum conditions:The parts are formed in a cleaner and more controllable vacuum environment, so the parts are cleaner (less contaminated) and with less internal stress, which significantly reduces the risk of cracks, and highly active metal materials can be formed
  • Higher powder bed temperature: The higher powder bed temperature during forming and slowly cooled in the furnace after forming can achieve less internal stress in the parts, so this technology can form the brittle metals (easy to crack), complex solid structures, thin-walled parts and suspended fine rod structure
  • Higher productivity: The powder bed has a certain strength after preheating and pre-sintering, so the parts have less dependence on supporting and the productivity can be improved by stacking of parts.