Eplus3D successfully tests hybrid PBF-LB manufacturing

August 16, 2022

From left to right: the CNC machined part, the part with the metal 3D printed addition and the post-processed part (Courtesy Eplus3D)
From left to right: the CNC machined part, the part with the additively manufactured addition and the post-processed part (Courtesy Eplus3D)

Eplus3D, Hangzhou, China, recently undertook a project to combine its Laser Beam Powder Bed Fusion (PBF-LB) Additive Manufacturing technology with CNC machining in a form of hybrid manufacturing.

The project team began by 3D modelling the desired part and studying its possible attachment to the build platform of the EP-M150 Additive Manufacturing machine. Eplus3D selected the simple geometrical shape of a rectangular box with an inner cavity, to which an additively manufactured box would be added. An important aspect to consider was how to precisely affix the CNC machined parts onto the PBF-LB machine’s build platform. The Additive Manufacturing machine didn’t feature a straightening system as standard, but adding a fixative mechanism could have an impact on the machine’s operation.

To overcome this issue, the company opted to drill a series of holes in the build platform, allowing for parts to be affixed to it in various, precise positions in future builds, with an arrow to ensure realignment between the build platform and recoater between each build. The build platform was then secured to the machine with four screws before the CNC machined part was affixed to it, ready for Additive Manufacturing of the box into the cavity.

Eplus3D stated that its first attempt at this hybrid manufacturing process was a success, thanks to its in-depth study of the fixative process before manufacturing began. While it admits that the more typically hybridised Directed Energy Deposition (DED) Additive Manufacturing process is more versatile, it is possible to undertake hybrid manufacturing with PBF-LB Additive Manufacturing.

Some limitations noted by the company were the fact that the build planes must be perfectly horizontal in order to ensure the additively manufactured additions are welded correctly. It’s also critical to ensure that no parts of the base component extend upward into the build plane, which would hinder recoater movement.

www.eplus3d.com

In the latest issue of Metal AM magazine

Download PDF
 

Extensive AM industry news coverage, as well as the following exclusive deep-dive articles:

  • Transforming access to medical implants with PrinterPrezz
  • Lessons from 2021’s Olympic bike crash
  • Xerox liquid metal AM
  • Additive Manufacturing for oil, gas and maritime
  • Multi-material metal parts by Powder Bed Fusion
  • Findings from Wohlers Report 2022
  • The challenge of grain size: X-ray powder diffraction analysis of parts made by metal AM

The world of metal AM to your inbox

Don't miss any new issue of Metal AM magazine, and get the latest industry news. Sign up to our twice weekly newsletter.

Sign up

News from the industry…

    News from the industry…

    Discover our magazine archive…

    The free to access Metal Additive Manufacturing magazine archive offers unparalleled insight into the world of metal Additive Manufacturing from a commercial and technological perspective through:

    • Reports on visits to leading metal AM part manufacturers and industry suppliers
    • Articles on technology and application trends
    • Information on materials developments
    • Reviews of key technical presentations from the international conference circuit
    • International industry news

    All past issues are available to download as free PDFs or view in your browser.

    Browse the archive

    qweqw

    Looking for AM machines, metal powders or part manufacturing services?

    Discover suppliers of these and more in our comprehensive advertisers’ index and buyer’s guide, available in the back of Metal AM magazine.

    • AM machines
    • Process monitoring & calibration
    • Heat treatment & sintering
    • HIP systems & services
    • Pre- & post-processing technology
    • Powders, powder production and analysis
    • Part manufacturers
    • Consulting, training & market data
    Download PDF
    Share via
    Copy link
    Powered by Social Snap