JEOL Additive Manufacturing Technology

Using the electron beam control technology from the world's highest performance electron microscope and electron beam lithography system for semiconductor manufacturing, JEOL has developed an advanced electron beam powder bed fusion 3D printer that can produce high-density and strength parts with a high-power and fast electron beam. JEOL’s Electron Beam Metal 3D Printer produces parts that meet regulated industry standards and requirements, allowing for manufacturers to scale their production demands.

Electron Beam Metal 3D Printer

JAM-5200EBM

Electron Beam Quality一Ensuring Build to Build Consistency for serial production in metal additive manufacturing

Hot Process: preheating using electron beam to eliminate distortion and cracking

Hot Process: preheating using electron beam to eliminate distortion and cracking
Electron beam additive manufacturing reduces the sudden temperature change of a build due to preheating using an electron beam (hot process). Therefore, the parts will have little residual stress, resulting in reducing distortion and cracks. On the other hand, laser additive manufacturing tends to accumulate residual stress by repeated heating and rapid cooling, resulting in deformation and cracks of the build depending on the material and shape.
Manufacturing low angle overhang section and curved section without supports
Manufacturing low angle overhang section and
curved section without supports
Laser additive manufacturing requires strong supporting material to avoid such deformation and cracks. Electron beam additive manufacturing can reduce the supporting material since the surrounding powders are lightly bonded to each other to support the build, which is an advantage.
Moreover, while the laser method needs to alleviate the stress inside the build through a heating processing after manufacturing, the electron beam method does not require such post-processing.

High Vacuum Environment: prevents oxidation and reduces potential impurities

High Vacuum Environment: prevents oxidation and reduces potential impurities

High purity maintained by high vacuum environment

Electron beam additive manufacturing performs manufacturing under a high vacuum. Therefore, oxidation of the build and inclusion of impurities can be reduced.
On the other hand, laser additive manufacturing performs manufacturing in an inactive gas environment (atmospheric pressure). In some cases, oxygen and water may remain. Therefore, attention is needed for active metals such as titanium alloy, etc.

Backscattered Electron Monitoring: real time in situ process monitoring for defect detection

BSE image monitoring function

BSE image monitoring function

Using our technology as an electron microscope manufacturer, we have developed a BSE (back-scattered electron) image monitoring function. This technology allows for the observation of surface morphology and defects layer by layer by capturing BSEs emitted from an electron beam. It enables visualization of print quality by using electron microscope technology which is difficult with laser additive manufacturing and other methods.
Defect detection during the process

Defect detection during the process

The benefit of the BSE image monitoring function is its real-time detection of defects in the build. Unlike X-ray CT, an additional testing step is not required after building, improving the quality control efficiency. This function acquires a BSE image by irradiating electron beams on the melted surfaces after the melting step. It is aimed at automatic detection of internal defects and deformation of parts built, based on the cross-sectional image.
In-situ process monitoring during manufacturing makes it possible to confirm the build quality in real- time.
In the future, the detection accuracy will be improved for various materials. And by melting the build containing defects found during manufacturing again, realization of a build with almost no defects can be expected.

The JEOL Advantage for Additive Manufacturing

  • Emphasis on total system uptime, with a long-life cathode over 1,500 hours. The full cathode life and manufacturing quality are maintained in the system’s clean manufacturing environment.
  • A clean, helium-free environment and “e-shield” that eliminates smoke events during manufacturing. JEOL's unique powder dispersal prevention system avoids the scattering phenomenon.
  • Focus and spot shape of the electron beam are automatically corrected according to the irradiation position. This technology was developed inhouse, based on our market-leadership in electron beam lithography systems for semiconductor manufacturing.
  • The ability to remotely monitor conditions and manufacturing status.
  • Eco-friendly manufacturing. The system can build multiple parts in a single run.
  • Manufacturing capacity of 250mm (diameter) x 400mm (height).
  • JEOL USA’s existing extensive service network of over 180 field service engineers.

A 3D Printer Built on JEOL Expertise and Support

What makes the JEOL JAM-5200EBM stand out in this growing field is that it is backed by JEOL’s decades-long expertise in the development and production of advanced electron optics technology used for research and industrial applications.
JEOL is the market leader in electron microscopy instruments, already contributing to the 3D printing value stream from materials characterization and particle analysis to imaging and chemical analysis. Additionally, the JAM-5200EBM’s electron beam technology draws upon JEOL’s 50+ year experience in development and production of generations of mask writing and spot beam lithography tools with unique vacuum technology.

JAM-5200EBM Specifications

Building method Powder bed fusion
Building range Up to Φ250 mm × 400 mm (H) ※
Electron beam power 6 kW
Process Hot process
Powder bed surface heating Maximum 900°C (standard specification)
Maximum 1200°C (high temperature specification)
Cathode life 1500h or longer ※
Powder particle diameter (standard) Approx. 45 - 105 μm
Layer thickness 50 μm / 75 μm
Powder dispersal prevention unit e-Shield incorporated
Powder bed surface temperature control Available
Electron beam correction Automatic (Focus, Astigmatism, Position distortion)
Chamber pressure (during melting) 1×10-2 Pa or lower  ※
External dimensions
Unit: mm

Option

AM-22010PRS Metal Powder Recovery System

A blasting device to remove lightly sintered powder surrounding the build after completion of manufacturing. Metal powders collected through blasting are reused for manufacturing. AM-22010PRS specification is for a nitrogen atmosphere for reactive materials such as titanium alloy, etc.
AM-22010PRS Metal Powder Recovery System

Gallery

Titanium Alloy (Ti-6Al-4V)

Low-pressure Turbine Blades for Jet Engine (Height: 400 nm)
Low-pressure Turbine Blades for Jet Engine
(Height: 400 nm)
Generator Turbine Blade (Height 180 mm)
Generator Turbine Blade
(Height 180 mm)
Gearbox (Height 250 mm)
Gearbox
(Height 250 mm)
Artificial Hip Joint Cup
Artificial Hip Joint Cup
Artificial Knee Joint (Femoral component)
Artificial Knee Joint (Femoral component)
Heatsink (100 mm)
Heatsink
(100 mm)
High-Frequency Heating (Hardening) Coil Provided by NDK Inc.
High-Frequency Heating (Hardening) Coil
Provided by NDK Inc.
Coil for Small Motors Provided by Denso Corporation
Coil for Small Motors
Provided by Denso Corporation
Heatsink (100 mm)
Heatsink
(100 mm)
Φ65 mm × 55 mm (H)
Φ65 mm × 55 mm (H)
Φ65 mm × 123 mm (H)
Φ65 mm × 123 mm (H)
Φ67 mm × 90.5 mm (H)
Φ67 mm × 90.5 mm (H)

Ni-based Alloy 718

Impeller (Φ170 mm)
Impeller
(Φ170 mm)
Closed Impeller (Φ100 mm)
Closed Impeller
(Φ100 mm)
Generator Turbine Blade (Height 180 mm)
Generator Turbine Blade
(Height 180 mm)

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