• Predictive sintering software under development to simplify binder jet 3D printing for metals
• Beta release of software for 316L stainless steel to be released in Q1 2020
• Software will also refine ExOne’s patent-pending 3D printed ceramic setter process


“The predictive software under development between ExOne and ANSYS will streamline the process of designing metal parts for binder jetting, which includes the essential final sintering step,” said John Hartner, ExOne CEO. “While ExOne customers successfully sinter parts today, the process often involves some trial and error with sacrificial parts. We are confident that new simulation software will greatly simplify this process and ease adoption of our sustainable manufacturing process.”
“Binder jetting is increasingly seen as a game-changing technology for enabling cheaper metal parts from additive manufacturing,” said Brent Stucker, director of additive manufacturing, ANSYS. “Through our collaboration with ExOne, ANSYS is committed to providing simulation technologies to help additive manufacturing practitioners understand and control their processes and materials, increase understanding of the underlying physics driving the process, and ultimately lead to rapid certification and qualification of components made using additive manufacturing.”
Understanding Binder Jetting
Binder jetting is a mature 3D printing process that uses a digital file to quickly inkjet a binder into a bed of powder particles — metal, sand or ceramic — creating a solid part one layer at a time. When printing metals, the final part must be sintered in order to fuse the particles together into a solid object.
Compared to other manufacturing methods, binder jetting is a fast and low-waste method of making precision metal parts and products. What’s more, it offers new design freedoms not previously possible.
While sintering metal powders is a common manufacturing processes, the design freedom now offered by 3D printing is creating new challenges in sintering green metal parts that deliver predictable dimensional tolerances and meet other requirements. The new software under development aims to better predict how parts will behave during sintering, so that adjustments can be made or automated to achieve desired results.
What’s more, the software will be used to refine ExOne’s patented process of 3D printing sintering setters in alumina, a fine ceramic material known for high heat resistance. Setters are used during sintering to support some geometric features during the sintering process.

www.exone.com

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