Page 10 - 3D Metal Printing Spring 2016

3D TECH UPDATE
Sciaky Introduces Closed-Loop Control for its EBAM Systems
Sciaky, Inc., Chicago, IL, introduces the IRISS closed-loop control for its electron-beam additive-manufacturing (EBAM) systems. IRISS (interlayer real- time imaging and sensing system) pro- vides consistent process control for metal-part geometry, mechanical proper- ties, microstructure and composition for large-scale 3D-printed parts. The closed- loop control monitors the metal-deposi- tion process in real time and makes adjustments to process parameters to compensate for any variation throughout the build process.
EBAM systems use wire feedstock available in a variety of metal alloys including titanium, tantalum, niobium, tungsten, molybdenum, Inconel, alu- minum, stainless steels and nickel. They can produce parts from 8 in. to 19 ft. long with gross deposition rates from
7 to 20 lb./hr. And, by using a dual wire-
feed option (inset photo), manufacturers
can combine two different metal alloys into a single melt pool to create custom- alloyed parts or ingots, and can even adjust the mixture ratio of the two materials to create graded parts or structures.
www.sciaky.com
Printed Tooling Insert a Bonus to Magna’s Injection-Molding Process
Czech Republic-based Innomia a.s. has become a big advocate of the benefits of direct metal laser sintering (DMLS), more specifically the EOSINT M 270 DMLS
machine from EOS. Most recently, Innomia has employed the machine to support its work for Tier One automotive supplier Magna in optimizing the
production process for injection-molded plastic arm-rest parts.
During injection molding, the heat energy of the liquid base material must
be dissipated throughout the tool facilitate precise temperature control and solidification and avoid deformation. Precise temperature control also helps to
minimize production cycle time.
Previously, Magna had been using a tool insert, designed to dissipate heat,
fabricated from heat-conducting beryllium-copper; it permitted cooling from only one side of the insert and led to uneven temperature distribution. In addition, very
cold cooling water (16 C) was required, and as insert surface temperatures rose as
The 3D metal-printed tooling insert is shown on the build platform of the EOS DLMS machine.
8 | 3D METAL PRINTING • SPRING 2016
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