Page 14 - 3D Metal Printing Magazine Winter 2022

3D Formnext 2021
315-mm dia. by 400-mm height build area and two 1000-W lasers.
At the show, the company showcased a tall Inconel demo rocket chamber (pic- tured), built in the Sapphire 1MZ and fea- turing complex internal cooling passages and injector components.
Velo3D: www.velo3d.com
New 3D Systems Dual-Laser Machines Enable Rapid 24/7 Production
3D Systems showcased additions to its Direct Metal Printing (DMP) portfolio with the DMP Flex 350 Dual and DMP Factory 350 Dual—two-laser machines designed to halve build time and lower part-pro- duction costs.
These latest additions reportedly main- tain the benefits of DMP single-laser con-
figurations, including flexible application use and quick-swap build modules (DMP Flex 350 Dual); integrated powder recy- cling (DMP Factory 350 Dual); and a cen- tral server to manage print jobs, materials, settings and maintenance to enable 24/7 productivity. Additionally, 3D Systems’ unique vacuum chamber significantly reduces argon-gas consumption while delivering oxygen purity of less than 30 ppm. Expect general availability of these machines during this year’s first quarter.
Pictured is a primary structure bracket, from Laserform AlSi10Mg powder, printed on the new DMP Factory 350 Dual machine. Employing dual lasers on this machine cut print time on 30-um layers by 37 percent as compared to a single laser, and by 30 percent on 90-um layers, according to 3D Systems officials, And, they note, printing 90-um layers as opposed to 30-um layers reduced print time by 68 percent.
3D Systems: www.3dsystems.com
Customized AMCM Machine Prints Redesigned Copper Inductor
3D Metal Printing visited AMCM, an EOS company that provides customized EOS machines or provides customized machines from scratch, to suit specific applications. Shown here, using EOS Cop- per CuCP, an AMCM M 290 (1-kW laser) built this dual-function inductor—a new design from thyssenkrupp. The redesign reduces a multipart component to a single part, and provides functional integration of heating and cooling to provide higher printing-process stability and better hard- ening results. Other redesigned-part advantages: elimination of edge overheat- ing, no soldering points, power consump- tion during use reduced by as much as 60 percent, part life more than doubled, manufacturing-cost reduction of as much as 58 percent and 20-percent reduction in production lead time.
EOS Copper CuCP reportedly offers thermal and electrical conductivity to 100- percent IACS (a copper standard that com- pares a material’s conductivity rating to that of pure copper, which is considered as 100 percent). This conductivity makes
it ideal for inductors, electrical motors and similar applications. Material prop- erties as reported by EOS: 99.5-percent pure, ultimate tensile strength of 165 MPa, 235-MPa yield strength and elongation at break of 45 percent.
AMCM: www.amcm.com EOS: www.eos.info/en
Markforged Reports
Huge Lead-Time and Cost Cuts for Stainless-Steel Fuel-Injector Nozzles
Markforged displayed this diesel-fuel- injector adapter, made from 17-4 PH stain- less steel in the company’s Metal X AM machine. Previously, to produce this next- generation component, Sandia National Labs outsourced laser sintering and CNC machining. Use of the Metal X, according to Markforged officials, allows Sandia to perform in-source AM with only a simple post-machining step. This reduces lead
12 | 3D METAL PRINTING • WINTER 2022
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