News & Views

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Flaw Generation in L-PBF Additive Manufacturing — New Paper

Posted by Rebecca Gurk | February 20 2017
In-situ monitoring of powder bed fusion (PBF) and nondestructive evaluation (NDE) of additively manufactured components are two of the current challenges that must be addressed to facilitate the full utilization of additive manufacturing (AM) in industry. To help address these issues, precise methods of producing intentional flaws must be developed to enable monitoring and inspection data to be correlated with actual discontinuities in AM components. At EWI an EOS M280 laser powder bed fusion (L-PBF) platform was used to develop this knowledge. Two categories of flaws were generated, including open-to-surface flaws and embedded flaws, and multiple iterative experiments were conducted.…

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EWI and 180 Skills to Provide Online Training for LIFT

Posted by Rebecca Gurk | February 16 2017
Lightweight Innovations For Tomorrow (LIFT) has announced a partnership with EWI and 180 Skills to provide advanced welding and inspection training to LIFT’s members and partners. The online training, set to launch in the fall of 2017, will combine methods taught and used today by advanced manufacturing professionals with online course modules designed to train and upskill the workforce of today and tomorrow. For many small or medium sized member companies, easy-to-access, affordable and high quality interactive training does not exist for many new technologies related to lightweighting, which further expands the already wide talent gap in the advanced manufacturing…

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Joining of Steel to Titanium with Interlayers — New Paper

Posted by Rebecca Gurk | February 15 2017
As manufacturers turn to multi-material designs to meet the ever-growing demands on their products, many are faced with the challenge of how to join dissimilar materials. Using traditional joining techniques, metallurgical incompatibilities of certain material combinations have greatly limited the performance and viability of many dissimilar joints. In order to achieve maximum performance from a multi-material design, new techniques for joining dissimilar materials must be developed. EWI's Jerry Gould, Mike Eff, and Kate Namola written Joining of Steel to Titanium with Interlayers to discuss EWI’s use of refractory metal foils in combination with established forge welding processes to create dissimilar…

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Bak is New EWI Member

Posted by Nadine Powell | February 14 2017
EWI welcomes Bak USA as a new member company. Bak seeks to make mobile technologies accessible to every person on earth, a mission put into motion through infrastructure work in Haiti after the catastrophic earthquake in 2010. Today Bak, headquartered in Buffalo, NY, employs a local workforce to build mobile computers for educational, not-for-profit, retail, and government organizations.    

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Digital Image Correlation at EWI

Posted by Paul Zelenak | February 13 2017
EWI has recently acquired a Correlated Solutions 3D digital image correlation (DIC) system.  The system was purchased for use in the EWI Forming Center for evaluation of deformation in sheet metals to produce forming limit diagrams.  A full description of the uses of DIC in characterization of material formability is located in the following link: Enhanced Forming Limit Diagram Capabilities at EWI.  When the system is not being utilized by the forming center, it is available for use in other capacities. DIC is a non-contact optical geometry and deformation measurement tool which utilizes a speckle pattern painted on the subject…

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