News & Announcements (Page 113)

Polymer properties can permanently change as they age, which can lead to unexpected failures. These failures can be avoided by considering the polymer’s response to the environment during early product design. Liquids, gases, heat, and irradiation can have irreversible chemical effects on a polymer. Alternatively, in some cases the polymer can affect the liquid’s properties....

Robotic arc directed energy deposition (DED) additive manufacturing (AM) offers maximum build volume for building structures, adding features to structures, and repairing structures. The technical requirements for metal DED builds are similar to welding requirements. For example, the pending NAVSEA Technical Publication - Process Requirements for Metal Directed Energy Deposition Additive Manufacturing1 will specify maximum...

With advanced high-strength steels (AHSS), standard formability tests yield insufficient data to determine the failure strain that triggers edge cracking. EWI has successfully evaluated a new testing method on DP780 steel which has the potential to help the automotive industry reduce design time, scrap rates, and other costs. New Method for Determining Failure Criteria for...