Design issues on the Boeing 787 Dreamliner get almost as much scrutiny as Tiger Woods pulling out of his driveway. The latest issue is the status of the much-discussed fix to the midsection of the composite fuselage.
Some composite material surrounding bolt holes delaminated during recent tests, but the issue isn’t expected to slow the first test flight of the Dreamliner. The delamination occurred in areas around metal plugs that are installed after exposure to liquid nitrogen. The bolts expand as they thaw.
A Boeing spokesperson said: “The freeze plug process is a standard repair we perform on both metallic and composite structure. We have extensive experience using these techniques. We have not seen any issues with these repairs that are inconsistent with our experience or the capability of these repair techniques.”
Many of the new adhesives we're featuring in this slideshow are for use in automotive and other transportation applications. The rest of these new products are for a wide variety of applications including aviation, aerospace, electrical motors, electronics, industrial, and semiconductors.
A Columbia University team working on molecular-scale nano-robots with moving parts has run into wear-and-tear issues. They've become the first team to observe in detail and quantify this process, and are devising coping strategies by observing how living cells prevent aging.
Many of the new materials on display at MD&M West were developed to be strong, tough replacements for metal parts in different kinds of medical equipment: IV poles, connectors for medical devices, medical device trays, and torque-applying instruments for orthopedic surgery. Others are made for close contact with patients.
New sensor technology integrates sensors, traces, and electronics into a smart fabric for wearables that measures more dimensions -- force, location, size, twist, bend, stretch, and motion -- and displays data in 3D maps.
As we saw on the show floor this week at the Pacific Design & Manufacturing and co-located events in Anaheim, Calif., 3D printing is contributing to distributed manufacturing and being reinvented by engineers for their own needs. Meanwhile, new fasteners are appearing for wearable consumer and medical devices and Baxter Robot has another software upgrade.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.