Additive Manufacturing

SEP 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 35 of 43

SEPTEMBER 2018 Additive Manufacturing TECH REVIEW 34 Software Monitors Laser Powder-Bed Fusion in Real Time Renishaw's InfiniAM Spectral process monitoring software is intended to help manufacturers overcome the barriers to additive manufacturing in critical applications, process stability and part quality. Designed for the laser powder-bed fusion (LPBF) pro- cess, the real-time monitoring software enables manufac- turers to gather meltpool data for traceable produc- tion and process optimization. InfiniAM Spectral is part of a developing family of products that helps users capture, evaluate and store process data from Renishaw LPBF technologies, the company says. The software en- ables data capture, presentation and analysis, representing a powerful tool for developing a deep understanding of the AM process. The software offers two measurement functions in the sensor modules. The first module, LaserView, uses a photo- sensitive diode to measure the intensity of the laser energy. The second module, MeltView, captures emissions from the melt pool in the near-infrared and infrared spectral ranges. These two sensor signals can be compared to help identify discrepancies. MeltView and LaserView stream data across a conventional computer network on a layer-by-layer basis, so manufactur- ers can analyze process monitoring data in real-time. As the build progresses, the data is rendered live in 3D for viewing in InfiniAM Spectral. The engineer can compare the data from each sensor to identify any deviations, which may indicate the presence of anomalies that could lead to defects. According to the company, the amount of process data generated during an AM build makes it difficult to make practical use of it. As a result, InfiniAM Spectral is designed to help manufacturers easily interpret data and gain a more detailed understanding of AM processes. Access to this data also enables future developments in process control, including detecting and correcting problems in real time. InfiniAM Spectral will be beneficial to manufacturers pro- ducing a series of identical parts in high-value applications. When producing the first part in a series, data from Laser- View and MeltView can be compared with existing X-ray or computed tomography (CT) data from a known good part. The manufacturer can use this signal data and can compare it against data from subsequent parts to judge quality and consistency, the company says. FDM 3D Printer Features MTConnect-Ready Interface The F900 Production 3D printer from Stratasys is the third generation of the company's flagship FDM system. Features include an MTConnect-ready interface with production- ready accuracy and repeatability. The F900 is built on the Fortus 900mc platform and is suitable for applications ranging from rapid tooling to jigs and fixtures to part production. The F900 is available in a new series of three solutions: the F900, the F900 AICS (Aircraft Interiors Certification Solution), and the F900 Pro. F900 AICS delivers performance and trace- ability targeted for flight-worthy parts. The F900 Pro is a production-grade system capable of producing parts with repeatability and performance in Ultem 9085 res- in, extending the repeatability developed for AICS to all industries, the company says. According to the company, the 3D printers are capable of providing the repeatability and performance required for final part production. With the introduction of the F900 production series and focus on industry standards and standardiza- tion, Stratasys intends to help advance the tech- nology from its prototyping and tooling roots to an industrial additive manufacturing system.

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