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In February this year you may remember an article detailing a composite 3D printer patent granted to American global defense company Northrop Grumman. Now it has a emerged that another team from the military-friendly company has been working on a 3D printable composite material.
As detailed by the abstract this recent patent, dated 19 February, 2019, the invention relates to, “A system and method for producing a uniform continuous fiber filament.” The method includes the use of magnets to feed the fiber creating “uniform continuous fiber filament.”
Unique - Properties - Materials - Northrop - Grumman
With the unique properties that composite materials provide it is not hard to imagine why Northrop Grumman would be investing in its development. In some cases, fiber-reinforced materials exhibit a strength comparable to metals, but they are a fraction of the weight, and the cost.
One leading composite 3D printer manufacturer is Markforged. For two years in a row its staple Mark Two 3D printer, which is capable of processing carbon fiber, fiberglass and Kevlar reinforced materials, has taken home the Enterprise 3D Printer of the Year (Polymers) award. Other notable names in this field include Impossible Objects, which raised $6.4 million in Series A funding a couple of years ago, and Fortify, the Digital Composite Manufacturing (DCM) startup that recently raised $2.5 million in seed funding.
Value - Materials - Engineers - Printing - Industry
Further establishing the clear value placed in composite materials by engineers and the 3D printing industry in general, last year leading OEM Stratasys launched its Fortus 380mc Carbon Fiber Edition (CFE).
The patent “Continuous fiber filament for fused deposition modeling (FDM) additive manufactured (AM) structures“(US10207426B2) was initially filed by Northrop Grumman Systems Corp in October 2015. It was then published in April 2017, before finally being granted in February 2019.
Inventors - Patent - Daniel - J - Braley
The inventors credited on the patent are Daniel J. Braley, Anthony M. Tamayo and Eric G. Barnes. Braley was a Senior Manufacturing...
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