The heart and brain of every photovoltaic (PV) system is the inverter, which converts direct current generated by solar panels into alternating current that can be used in a home or business.
Automotive and aerospace manufacturers have been at the forefront of the lightweighting trend for some time now. But, they're not the only ones. The railway industry could also benefit from the use of new, lightweight structural materials.
LOS ANGELES—Engineers at the University of California, Los Angeles (UCLA) have developed a way to weld an aluminum alloy that was difficult to join in the past.
Production engineers often get excited about new technologies and tend to think that the benefits of investing in them are obvious to everyone else in the company. However, enthusiastic engineers can get an unpleasant surprise if they are not prepared to argue their case properly.
RICHLAND, WA—Engineers at the Pacific Northwest National Laboratory here have developed a new process for joining aluminum and steel. Friction stir dovetailing was inspired by assembly techniques used in woodworking.
Originally developed for joining aluminum, friction stir welding is now being applied to other materials, including steel, copper, titanium and even nylon.