U.S. Army Combat Capabilities Development Command, known as DEVCOM, and its Army Ground Vehicle Systems Center (GVSC) plan to build (reportedly) the world’s largest metal 3D printer, for printing large parts for military ground vehicles. Called the Jointless Hull project, the effort is being coordinated and led by prime contractor Applied Science and Technology Research Organization (ASTRO) America, Bethesda, MD, which will work together with subcontractors Ingersoll Machine Tool, Siemens and Meld Manufacturing to manufacture the hull-scale machine.
While the ability to produce monolithic hulls is important, the new
additive manufacturing (AM) machine also will have the capacity to
produce much larger AM parts than currently possible. “There are a lot of big, heavy metal parts within the Army inventory for which AM is not even an option simply because they don’t fit within the build envelop of the current machines available in industry,” says Joseph Kott, GVSC materials division advanced manufacturing branch chief. “This new machine will provide Rock Island Arsenal with an additive capability that doesn’t exist anywhere else, not only to produce parts for the Army but also across the DOD.”
3D printing builds to near net or finished dimensions, vacuum heat
treating is an absolute necessity. Vacuum levels that approach 1 X 10-6
Torr produce clean and oxide free surface conditions that are
metallurgically stable. Critical temperature control is also a must to
avoid cracking and producing a strong and ductile part.
Energy has developed and employs a digital repair chain using laser
powder-bed fusion AM technology that enables repair of turbine blade
tips as well as the addition of new features. Specifically, it is now
possible, report company officials, to implement cooling structures in
critical areas to prevent blade-tip failure.
The development of HybridTech has grown out of a research project,
Change in Production Technology, funded by the European Regional
Development Fund. Using HybridTech, the company has manufactured the
first blade sets, and conversion of the standard repair procedure to the
HybridTech process is underway. Siemens Energy plans to apply the
process to other components, and use it to upgrade new-component
Additive manufacturing demands high-quality power to avoid defective builds. ABB has pioneered a scalable power quality solution designed specifically for the additive process. Join ABB's Additive Segment Leader Pat Gannon for a discussion on June 22nd @ 10:30AM ET during the 3DMP Experience and Tech Tour.
3D Metal Printing Educational Webinar Series Features Talks by NCDMM, Enerpac, Wabtec and More
in its sixth year, the 2021 3D Metal Printing Experience and Tech Tour
returns as an online virtual webinar series, scheduled for June 22 and
24. This premier metal-AM event brings together industry experts, AM
users and suppliers to learn about the latest developments in 3D metal
Conference highlights include:
Keynote: Process Standardization, Data Collection and Transference—Joe Veranese, vice president and CIO, National Center for Defense Manufacturing and Machining (NCDMM)
Keynote: Making the Business Case for Metal AM—Michael Rosplock, Enerpac
Design for AM—Dr. Tim Simpson, Penn State University
Panel Discussion—Working with Service Bureaus, moderated by Cullen Hilkene, CEO, 3Diligent Corp.
3D Printed Parts in the Rail Industry, Brett Heher, lead mechanical engineer, Wabtec Corp.
of a power-velocity map proves important in identifying a boundary
between an area of stable melting and a region where pores are formed.
What’s in Store for Additive Manufacturing as We Recover from COVID-19?
As manufacturers continue to navigate a new inflection point, we can
expect AM to continue making an impact in three key ways: the rise of
on-demand manufacturing networks; marrying software to hardware into
true platforms, to seamlessly bring parts form design to production; and
simplifying supply chains.