by kublikhan » Sun 30 Sep 2012, 11:42:56
$this->bbcode_second_pass_quote('Outcast_Searcher', ' ')3D printing is impressive, but currently it only uses plastic, it is slow, it is expensive, and it is very limited.
That is incorrect. 3D printers can print plastic, metal, ceramic, semiconductors, etc. The technology is already being used today and is more than a billion dollar industry. Many are turning to this technology because of the costs savings it can offer. Although I agree with you that the article should have been tempered to indicate the house printing industry is still just a dream.
$this->bbcode_second_pass_quote('', 'T')hough the technology originated in the U.S., European companies, such as EOS GmbH of Germany and Arcam AB of Sweden, are now leading producers of 3-D printers that make metal objects. Terry Wohlers, an industry consultant, says companies in Asia also are investing heavily in 3-D printing but so far aren't technological leaders.
Mr. Wohlers expects the world-wide market for additive-manufacturing products and services to reach $2.14 billion this year, up from $1.71 billion in 2011, but still only 0.02% of global manufacturing output.
For now, 3-D printing best suits products that are highly complex, need to be customized or are produced in small volumes, such as dental implants or parts for race cars.
United Technologies Corp.'s Pratt & Whitney aircraft-engine unit is using the process to make blades and vanes in compressors inside jet engines. Honeywell's aerospace unit employs it to build heat exchangers and metal brackets but expects to find far more applications, says Bob Witwer, vice president of advanced technology at the company's aerospace unit. Boeing already makes about 300 different smaller aircraft parts using 3-D printing, including ducts that carry cool air to electronic equipment. Some of these ducts have complicated shapes and formerly had to be assembled from numerous pieces, boosting labor costs.
Next 3-D Frontier: Printed Plane Parts$this->bbcode_second_pass_quote('', 'T')he market for flexible, printed, and organic large-area electronics is rapidly growing. Currently estimated at over $1B, the global market is expected to increase to a $45B market by 2016.
Printed ElectronicsPARC has developed jet-printing processes for organic semiconductors (including all-printed TFT arrays, pictured) and conductors – resulting in novel functionality and reduced manufacturing costs. These high-performance printed devices are achieved by materials understanding and device design that allows the formation of good dielectric-semiconductor and semiconductor-metal interfaces. [video example] The printed transistors have exceptional performance for polymers, and meet all requirements to address displays. Our a-Si, low-temperature polysilicon (LTPS), and organic semiconductor TFTs – which have the advantage of low-temperature deposition and low-elastic modulus – have also been applied to various radiation detectors, including x-ray, ultrasound, and neutron imaging.
Printed and Flexible Electronics - PARC, a Xerox company3D printing is not the only additive-manufacturing process either. Another one is called Electron beam freeform fabrication(EBF3). It uses an electron beam to lay out metal parts. NASA hopes to one day use it to build structures in space. Today, it is already being used to build parts for the F-35 Joint Strike Fighter.
$this->bbcode_second_pass_quote('', 'I')magine a machine that can build a part or a tool as the need arises, whether on Earth, Mars or the International Space Station. Almost 10 years ago, engineers at NASA's Langley Research Center imagined just that. They developed the Electron Beam Freeform Fabrication, or EBF3, a process that uses an electron beam gun, a dual wire feed and computer controls to manufacture metallic structures for building parts or tools in hours, rather than days or weeks.
With the EBF3 acting as a sort of remote machine shop, the need for sending up tools and parts in a spacecraft could be eliminated. And the tight tolerances in fabrication become even more critical in zero gravity situations. Here and now, its capabilities are being used in a partnership between NASA and manufacturing.
The EBF3 is being used to manufacture titanium spars for vertical tails of the F-35 Joint Strike Fighter. Less wasted titanium and reduced machining times result in a savings for partners, Lockheed Martin and Brisbane, Australia-based Ferra Engineering, which will open the world's first facility to manufacture the F-35 components. "But this first application doesn't mean we are finished," said Karen Taminger, a materials engineer at Langley. In fact, they are just beginning.
According to Taminger, most of the interest in the technology is coming from aerospace because of the EBF3's capability to tailor material and properties and improve the performance of aircraft.
As the technology is introduced, applications for new industries are evolving. Recently, while showcasing the EBF3 on Capitol Hill, a representative from GM showed interest in using it to build tools for automobile manufacturing.