HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
<<  <  Page 2/2
Dave Palmer
User Rank
Platinum
Re: Weight reduction and low cost, too
Dave Palmer   3/7/2013 6:53:47 PM
NO RATINGS
@Charles: Yes, there is a Japanese patent (2010-254255) that covers this invention.

Interestingly enough, there is a U.S. patent (7,850,182), assigned to Hyundai, that covers something pretty similar, except that the extrusion has a double wall, and is formed in a different way.  Hyundai presented their work at the SAE World Congress.  I'm not sure whether this is currently being used on any Hyundai vehicles or not.

Hyundai had a lot of problems with corrosion on steel control arms a few years ago, so their interest in aluminum control arms is understandable.  (Of course, aluminum is not immune to corrosion, either, as the Suzuki engineers found out!)

Charles Murray
User Rank
Blogger
Re: Weight reduction and low cost, too
Charles Murray   3/7/2013 6:19:02 PM
NO RATINGS
I wonder what the business implications of this are. Are any aspects of this technology patentable? Could Suzuki be seeing some licensing revenue on the horizon? With the 54.5-mpg mandate coming, I'm sure a lot of automakers would be interested.

Dave Palmer
User Rank
Platinum
Re: Weight reduction and low cost, too
Dave Palmer   3/7/2013 6:08:47 PM
NO RATINGS
@Charles: Actually, it weighs 50% less at an equal cost, compared to a welded steel part.  The 30% figure is in comparison to an aluminum die casting, but the die casting is more expensive.

Unfortunately, the paper doesn't say the amount of weight saved, just the percentage reduction.  The big deal, which I should have mentioned in the article, is that this is unsprung weight.  Reductions in unsprung weight mean better ride quality in addition to better fuel economy.

By the way, if you want to know what the part looks like, it's part 16 in this diagram.

It's unfortunate that Suzuki made the decision to stop selling cars in the U.S., because the Kizashi is a pretty neat car.  However, the authors indicated that this technology may find its way into Suzuki's ATVs and other vehicles.

Charles Murray
User Rank
Blogger
Weight reduction and low cost, too
Charles Murray   3/7/2013 5:36:56 PM
NO RATINGS
What an amazing story. Too often, the best material innovations cost far too much and therefore never see the light of day. It seems hard to believe, but most automakers fight for pennies -- because by the time they build a million of one part, those pennies add up. It's startling to see a part that weighs 30% less at equal cost. Dave, any idea how many pounds are saved here?

<<  <  Page 2/2


Partner Zone
Latest Analysis
With erupting concern over police brutality, law enforcement agencies are turning to body-worn cameras to collect evidence and protect police and suspects. But how do they work? And are they even really effective?
A half century ago, cars were still built by people, not robots. Even on some of the country’s longest assembly lines, human workers installed windows, doors, hoods, engines, windshields, and batteries, with no robotic aid.
DuPont's Hytrel elastomer long used in automotive applications has been used to improve the way marine mooring lines are connected to things like fish farms, oil & gas installations, buoys, and wave energy devices. The new bellow design of the Dynamic Tethers wave protection system acts like a shock absorber, reducing peak loads as much as 70%.
As U.S. manufacturing booms, companies are beginning to invest in new equipment.
Automobili Lamborghini is joining the ranks of supercar makers who are moving to greener powertrains.
More:Blogs|News
Design News Webinar Series
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 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.
Dec 15 - 19, An Introduction to Web Application Security
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


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.
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