User Rank
Re: lithium alloys
plasticmaster   7/5/2011 12:47:05 AM
While I'v got an affection for plastics, I think it does have its limitations. There will need to be a lot more empirical testing of plastic in airplane body parts before the general public will be ready to fly in a plastic plane.

Dave Palmer
User Rank
Re: lithium alloys
Dave Palmer   6/24/2011 3:34:18 PM
Alcoa calls this product a "third-generation" aluminum-lithium alloy.  The "second-generation" aluminum-lithium alloys have been around since at least the 1980s.  They are used fairly extensively in space applications, with the best-known being the Space Shuttle external tank.  They are also used in military aerospace applications (for example, the MiG-29M airframe).  However, they are less widely used in commercial applications.  I think the biggest reasons are cost and unfamiliarity.  Another issue is anisotropy of properties, although this is an issue with composites as well.  Alcoa claims to have addressed this with the new generation of alloys: http://www.alcoa.com/global/en/innovation/papers_patents/pdf/LMT2007_110.pdf


Charles Murray
User Rank
lithium alloys
Charles Murray   6/23/2011 5:56:06 PM
Wow. Looking at the link to the information about these alloys, it makes you wonder why their use isn't more widespread: lower density; higher tensile strengths; higher elastic modulus. Where've these alloys been up to now?

Partner Zone
Latest Analysis
A panel on cybersecurity at ARM TechCon called for regulations to protect the security of connected devices.
Do you wear your ugly Christmas sweater while fighting zombies, or simply chill in front of your homemade entertainment center while your automated cat feeder keeps your feline friend at bay? Whatever you prefer, one of the following gadgets is sure to get your DIY motor running.
The design of products has been altered altogether through 3D printing. Parts that couldn’t be produced at all before 3D printing came along are often superior to conventionally produced parts.
Marine mussels and their interaction with the ocean environment has inspired a breakthrough in developing a nontoxic coating for organic electronic components that also could speed up the manufacturing process.
The Innovation Challenge Awards had one run-away winner at ARM TechCon 2016. Of the six awards presented, one company walked away with four.
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 10 - 14, Embedded System Design Techniques™: Getting Started Developing Professional Embedded Software
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10

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.
Next Course November 8 - 10:
Sponsored by 3M
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service