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Searching for the Perfect Lightweighting Recipe

Lightweighting is so established it’s now part of marketing for new vehicles. Automakers routinely detail how much less models weigh than their predecessors. General Motors Co., for example, has said a range of its vehicles is anywhere from almost 250 lb (112.5 kg) to 700 lb (315 kg) lighter.

3D-Printed Parts Restore Cars’ Glory

Daimler may be the first vehicle maker to offer 3D-printed replacement parts, but racing enthusiasts and car collectors like Jay Leno have been using additive manufacturing and 3D scanning for many years to replace worn-out parts or to enhance their rides.

Honeycomb Heroes: Making Composites for Aerospace

There’s an old saw that if bumblebees were aeronautical engineers they would know they can’t fly. Quite apart from the miracle of their flight, bees also happen to make a lightweight structure of surprising strength, just the sort of thing you’d want if you were building aircraft: honeycomb.

Breathing Safely Around Metal 3D Printers

When GE decided that additive manufacturing was the way to go for making metal fuel nozzles for its new LEAP engine, the company touched off interest in other shops to move 3D printers from the design studio to the factory floor. It also stepped up the focus on safety standards for metal AM.

New 3D Printer Makes Fully Isotropic Parts, Virtually Eliminates Post-Processing

One of the “dirty secrets” of 3D printing is the universal need to take additional steps to render the output usable, including removing the part from its support, curing the part, or improving the surface. Aside from additional cycle time and cost, these steps often require or emit toxic chemicals, necessitating special ventilation and making them unsuitable for a standard office environment. For example, parts built with fused deposition modeling (FDM) must spend about four to eight hours in a heated, agitated sodium hydroxide bath.

New 3D Printing Methods Can Create Shape-Shifting Objects

Researchers from the Georgia Institute of Technology (Atlanta) and two other institutions have developed a new 3D printing method to create objects that can permanently transform into a range of different shapes in response to heat.