Additive Manufacturing

MAR 2018

ADDITIVE MANUFACTURING is the magazine devoted to industrial applications of 3D printing and digital layering technology. We cover the promise and the challenges of this technology for making functional tooling and end-use production parts.

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Page 53 of 67

MARCH 2018 Additive Manufacturing RAPID 2018 ON DISPLAY 52 Multi-Orifice Nozzle Improves Polymer 3D Printing Throughput Strangpresse LLC, Booth 2420 Strangpresse has been granted exclusive U.S. and international li- censing to manufacture a multi-orifice polymer deposition nozzle, invented by Oak Ridge National Lab, for use in additive manufacturing. According to the company, this nozzle will overcome a current chal- lenge in AM systems, by enabling both high resolution and high ma- terial throughput. This is possible through equipping the AM system with nozzles of selectable diame- ter. The multi-orifice nozzle improves the deposition, quality and speed of AM parts by coaxially adjusting the nozzle orifice to the desired bead size during depo- sition. It includes multiple deposit configurations and a stop feature. This extrusion nozzle includes two selectable orifice sizes. The endpoint or contact plane of the nozzle remains in the same position for either orifice, thereby enabling a consistent build. Concentricity of the nozzles prevents restriction of the workspace. This invention is compact and requires low actuation forces because the design is nearly pressure balanced. In addition, the internal volume of the nozzle does not change when switching from one orifice to the other, the company says. According to Strangpresse, the multi-orifice nozzle can be retrofitted to most current medium and large-scale AM systems in the market. Automated 3D Scanner Speeds Inspections ShapeGrabber Inc., Booth 2024 The Ai310 industrial 3D scanner from ShapeGrabber is designed to reduce inspection time while generating thor- ough results and automated reports. The automated 3D scanner is said to enhance 100 percent inspection, statistical process control (SPC) and production part approval processes (PPAP). The scanned data can be compared to spec via direct comparison to CAD models and used to generate visual reports that show deficiencies at a glance. The system can also be used to reverse engineer parts. The complete scan data speeds and eases workflows when converting a legacy part into current engineering- grade electronic documents. Fitted with the SG156 scanhead, the scanner is suitable for inspecting parts in industries including auto- motive, aerospace and medical.

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