Assembly issues continue to slow delivery of the Boeing 787 Dreamliner, which is now almost three years behind schedule. Workers at Italian subcontractor Alenia apparently incorrectly installed fasteners where the horizontal stabilizer attaches to the fuselage on some aircraft. Boeing employees in Seattle are now correcting the problem.
“This is not a design issue or a flight-test finding,” says Scott Fancher, vice president and general manager of the 787 program. “This is a straightforward workmanship issue with the installation of a couple of shims and some associated fasteners.”
One wonders if it really was worth outsourcing all the fabrication for this project. Is the Italian subcontractor being backcharged for the repair work? How many more defects will be allowed from a subcontractor before finding a new source for that particular assembly?
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Many of the materials in this slideshow are resins or elastomers, plus reinforced materials, styrenics, and PLA masterbatches. Applications range from automotive and aerospace to industrial, consumer electronics and wearables, consumer goods, medical and healthcare, as well as sporting goods, and materials for protecting food and beverages.
Engineers trying to keep track of the ever-ballooning number of materials and machines for additive manufacturing and 3D printing now have some relief: a free searchable database with more than 350 machines and 450 different materials.
At JEC Europe Dow Automotive introduced a new ultra-fast, under-60-second molding cycle time for its commercial-grade VORAFORCE 5300 epoxy resin matrix for carbon composites. It's aimed at high-volume automotive manufacturing.
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