The first of several machine tools to automate fuselage skin panel assembly for the giant U.S. Air Force C-17 Globemaster III airlifter now operates at Boeing's Long Beach, CA, facilities. The machine, a Torres Mill 5-axis NC trimming and drilling machine, can trim and drill skin panels as long as 40 ft and as wide as 12 ft, with a curvature of up to 3 ft. And it can accomplish this task at a rate of 400 inches a minute. The machine also precisely drills tool-coordinating holes for locating detail parts in later assembly operations. An electronic database of the parts' dimensions controls the drilling and trimming operations. It provides an accuracy to within 0.002 inch, less than the thickness of a human hair. It also cuts out openings for hatches, access panels, and wiring and tubing. The accuracy is needed for two follow-on automation machines planned for operation early this year. One, a 33-ft-tall, 50-ft-wide riveter, will combine several smaller skin panels into one large panel and add the internal frames. The second will attach the underfloor bulkheads. E-mail David Eastman at www.boeingmedia.com.
A recent example of a major CAE revamp is MSC Apex, released last month by MSC Software Corp. In a discussion with Design News, MSC executives noted that its next-generation platform is designed to substantially reduce CAE modeling and process time, “in some cases from weeks down to hours.”
The Thames Deckway would run for eight miles close to the river’s edge, rising and falling slightly with the tidal cycle. It will generate its own energy from a series of devices that will line the pathway and use a combination of sources to make the path self-sustaining.
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.