Electron beam

Added: Oct 31, 2017 12:35 pm • The machine should be a Powder Bed Fusion system, as defined by the ASTM as "An additive manufacturing process in which thermal energy selectively fuses regions of a powder bed."(REF: International Standardization Organization/ASTM 52900-15 Standard Terminology for Additive Manufacturing.)
• The machine's thermal energy source should be an electron beam with a minimum of 3000 watts power.
• The electron beam should have a minimum focus diameter of 250 micrometers.
• The electron beam shall be capable of being scanned across the build area at user controlled speeds up to 8000 m/s
• The process chamber should have the capability of being heated and operated to a maximum temperature of 1100 celcius.
• The machine shall be capable of operating in vacuum build environment with a maximum partial pressure of helium of 2 x 10-3 millibar. The system must use vacuum control to draw down the atmosphere of the build chamber.
• The build volume should be a minimum of 200 mm by 200 mm by 380 mm.
• The machine weight shall not exceed 1700 kilograms.
• The machine shall have dimensions not to exceed 1850 mm x 900 mm x 2200 mm (W x D x H)
• The machine shall be supplied with a process chiller
• The machine shall be supplied with an electrical transformer which meets power requirements of system
• Process parameters for the machine shall be open to the user and have the ability to be edited
• Vendor shall provide installation and basic training at time of installation
• Vendor shall provide sufficient materials/consumables to complete training and test builds at time of installation
• Vendor shall provide advanced training on machine and parameter development/editing at a time not to exceed 1 year from initial installation/training