Page 19 - 3D Metal Printing Summer 2019
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 RAPID + TCT 3D
  processes. This allows for accurate price quoting, automated printability analysis and delivery estimates for ordered parts. Design engineers also can communicate, iterate and track the progress of their parts in real-time.
Key features of Fab Flow include:
• Customizable shop configuration and ordering interface • Instant and comprehensive price quoting
• Live job tracking and updates
• Automated printability analysis
• Interactive 3D model viewer for designers
• Contextualized design communication.
www.desktopmetal.com
3D Printed Milling Tool, New Ni-Based Superalloys and AM Diamond Composite
Sandvik had a host of innovations on display, including the AM version of its CoroMill 390 milling cutter. 3D printing resulted in an optimized design, 80-percent lower weight and as much
as 200-percent increased productivity when using the tool, according to company officials. Topol- ogy optimization resulted in the weight savings, with the tool material changed to a titanium alloy and produced via powder bed laser fusion. Reducing weight at the end of the milling assembly signifi-
cantly reduces vibration in the system, thus smoothing cutting performance and leading to the stated productivity increase.
Also, the company revealed at RAPID + TCT that it has added nickel-based superalloys to its Osprey metal-powder roster. The superalloys, produced in Sandvik’s atomizing plant, reportedly are ideal for AM applications.
In addition, Sandvik touted development of a proprietary process to 3D print diamond composite via stereolithography, enabling the hard material to be printed in highly complex shapes without the need for further machining. Included was a
sample of a 3D printed diamond composite. Most of the material is diamond, but to make it printable and dense, according to Sandvik officials, it must be cemented in a very hard matrix material, keeping the most important physical properties of pure diamond.
“On seeing its potential, we began to wonder what else would be possible from 3D printing complex shapes in a material that is three times stiffer than steel, with heat conductivity higher than copper, the thermal expansion close to Invar—and with a density close to aluminum,” says Anders Ohlsson, delivery man- ager at Sandvik Additive Manufacturing. “These benefits make us believe that you will see this diamond composite in new advanced industrial applications ranging from wear parts to space programs, in just a few years from now.” www.additive.sandvik/en
Automated Metrology-Grade Desktop 3D Scanner
Artec Micro’s Artec 3D, an automated, metrology-grade desktop 3D scanner, comes equipped with cutting-edge twin cameras. LED lights, synchronized with the scanner’s dual-axis rotation system, enable digital copies using minimal frames and point accuracy to 10 microns, a tenth the size of a single grain of table salt. Intuitive and simple-to-use, the scanner requires minimal training, according to company officials. After placing an object on the circular scanning platform, the operator chooses from a variety of smart scanning paths and clicks to begin. The scanning process can be viewed in real-time within Artec Studio. www.artec3d.com
New Materials for EOS Printers
EOS displayed a variety of parts and AM machines, and high- lighted its continued development of materials to serve the industry. This includes the introduction of four metal materials specifically developed for AM: EOS StainlessSteel CX, EOS Alu- minium AlF357, EOS Titanium Ti64 Grade 5 and EOS Titanium Ti64 Grade 23. They have been tailored to suit an array of appli- cations, ranging from automotive to medical.
The company offers comprehensive data for all four metals, including the number of test specimens on which the mechanical properties are based, as well as detailed scanning-electron- microscope images that provide insight into material quality.
     3DMPmag.com
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