HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
Page 1/2  >  >>
VM
User Rank
Iron
Re: Carbon composites probably inevitable
VM   4/10/2014 9:37:17 AM
NO RATINGS
I sure wouldn't want to be anywhere close to a car fire if there was any significant amount of flamable metal in it's ocnstruction.

 

Villy

Lightfellows
User Rank
Iron
Re: Carbon composites probably inevitable
Lightfellows   2/4/2014 4:46:26 AM
NO RATINGS

I read with interest the threads on CF –I am involved with many companies worldwide regards CF composites and what I am seeing is new CF material formats combined with new and modified process and polymers that are opening up a significant potential for auto applications. Aluminium's, steels, titanium and magnesium will never compete with a material format that can be moulded with variable thicknesses – strategic laminate direction and can be combined with many other materials. You will see a greater use of glass CF hybrids in the future. Regarding recycling – with the greater acceptance of TP polymers and their increase performance the recycling issue goes away!! so yes the use of CF is inevitable !!

Martin O'Connor  - Zoltek Automotive

Ann R. Thryft
User Rank
Blogger
Re: Carbon composites probably inevitable
Ann R. Thryft   10/8/2013 12:35:28 PM
NO RATINGS
Not at all, Rob. Many composite developers we've reported on are working on both types. They each can have their place in a given vehicle.

Rob Spiegel
User Rank
Blogger
Re: Carbon composites probably inevitable
Rob Spiegel   10/8/2013 11:49:50 AM
NO RATINGS
Ann, does that mean that glass fiber composites are likely to get sidelined? Or, are there still applications for which glass fiber composites are the superior solution?

Ann R. Thryft
User Rank
Blogger
Re: Carbon composites probably inevitable
Ann R. Thryft   10/8/2013 11:41:32 AM
NO RATINGS
The strength to weight ratio of carbon fiber composites is higher than that of glass fiber composites. And the greater stiffness is very important in cars and planes.



Rob Spiegel
User Rank
Blogger
Re: Carbon composites probably inevitable
Rob Spiegel   10/12/2012 11:13:37 AM
NO RATINGS
Archie, I think the fascination with carbon fibers is the environmental factor. However, the steel folks argue that the front end of the carbon fiber process eats up considerable energy -- plus, they argue that steel is very easy to recycle.

fdonmedway
User Rank
Iron
Re: Carbon composites probably inevitable
fdonmedway   10/11/2012 6:26:42 PM
NO RATINGS
Why the fascination of carbon fibres. The same techniques can be used with glass fibres which are cheaper. This can create as light structures which are, admittedly, less stiff but no less strong. The main importance is correct fibre orientation and high fibre density, i.e. squeezing out the resin. The same techniques can be applied to glass as carbon.

The high fibre density is cheaper in materials, lighter and less brittle.

Rapid curing is generally a result of using an appropriate resin - plus the use of heat. The advantage of applying heat is that a slower mix can be used but rapid curing applied once the shell or component is fully laid up. The safest method would be to use hot water. Possibly a water jacket could be applied using the water to squeeze the shells to get high compaction and then the cold water could be run out and hot water inserted to accelerate the cure.

Archie

Ann R. Thryft
User Rank
Blogger
Re: Carbon composites probably inevitable
Ann R. Thryft   9/24/2012 12:42:08 PM
NO RATINGS
Thanks, Dave, for that input. All my sources have said magnesium is extremely expensive, much too expensive for high-volume automotive manufacturing. Any idea how that's being addressed?

Dave Palmer
User Rank
Platinum
Re: Carbon composites probably inevitable
Dave Palmer   9/21/2012 6:47:05 PM
NO RATINGS
@Ann: Titanium is not expected to play a big role in automotive lightweighting, but magnesium is.  The Department of Energy's Vehicle Technologies Program forecasts that magnesium will make up 12% of a vehicle's weight by 2035 (compared to <1% today).  They have been doing a lot of work on magnesium casting techniques.  This would make a good topic for a future article.

Scott Orlosky
User Rank
Platinum
Re: Carbon composites probably inevitable
Scott Orlosky   9/16/2012 2:22:07 PM
NO RATINGS
This seems like an interesting element in the "lightweighting" game.  As ratkinsonjr points out, sometimes a process development is needed before materials become cost effective.  Who knows, perhaps converting automatic knitting machines to make cloth "shapes" for the automotive industry is the sort of cross-pollination of technologies that could make carbon fiber cost effective as a solution. Glad to see a consortium working on this.  Thanks for the story.

Page 1/2  >  >>


Partner Zone
Latest Analysis
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team 100 to make (about $161 US).
At Medical Design & Manufacturing Midwest, Joe Wascow told Design News how Optimal Design prototyped a machine that captures the wing-beat of a duck.
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
More:Blogs|News
Design News Webinar Series
10/7/2014 8:00 a.m. California / 11:00 a.m. New York
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


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 Class: 10/28-10/30 11:00 AM
Sponsored by Stratasys
Next Class: 10/28-10/30 2:00 PM
Sponsored by Gates Corporation
Next Class: 11/11-11/13 2:00 PM
Sponsored by Littelfuse
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service