HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Engineering Materials

Aluminum Wheels Take Higher Max Load Than Steel

NO RATINGS
View Comments: Oldest First|Newest First|Threaded View
<<  <  Page 3/4  >  >>
Dave Palmer
User Rank
Platinum
Re: Wheels, aluminum and steel.
Dave Palmer   10/9/2012 6:49:34 PM
NO RATINGS
@William K.: I could be wrong, but I'm pretty sure that most OEM aluminum wheels have at least a clear chromate conversion coating on them.  This will not actually prevent corrosion, but the wheel would corrode a lot faster if it didn't have it.

Many aluminum wheels have multiple layers of coating: chromate, primer, silver topcoat, and clearcoat.  They may look like bare aluminum, but they're not.

Charles Murray
User Rank
Blogger
Re: Steel vs. aluminum
Charles Murray   10/9/2012 7:38:20 PM
NO RATINGS
Thanks, Dave. That makes sense. Now i have one more question: If we're essentially beefing up strength by using a thicker section, what does this do to the cost?

Dave Palmer
User Rank
Platinum
Re: Steel vs. aluminum
Dave Palmer   10/10/2012 12:01:04 AM
NO RATINGS
@Charles Murray: There's no question aluminum wheels are more expensive than steel wheels.  If they were cheaper, do you think Alcoa would go to the trouble of paying for a study to show how environmentally friendly they are?

Ann R. Thryft
User Rank
Blogger
Re: Wheels, aluminum and steel.
Ann R. Thryft   10/10/2012 4:04:16 PM
NO RATINGS
Here's a brief article, of uncertain provenance, that says "Most original equipment aluminum wheels are clear coated for corrosion resistance." http://autos.yahoo.com/maintain/repairqa/vehicle_exterior/ques129_0.html Here's a reference that looks more trustworthy: http://www.detailsupplyoutlet.com/pdf_files/tips.pdf It says "Most aftermarket wheels are made of aluminum alloy, whether they are polished, chromed, painted, cleared or powder coated & cleared." A brief discussion follows of various finishes. From the context, it appears that clear-coating is not universal.

Ann R. Thryft
User Rank
Blogger
Re: Wheels, aluminum and steel.
Ann R. Thryft   10/10/2012 4:10:59 PM
NO RATINGS
William, here's a link to the corrosion inhibitor blog we just posted:
http://www.designnews.com/document.asp?doc_id=252049
There's already a lively discussion going about corrosion and aluminum wheel coatings.

William K.
User Rank
Platinum
Re: Wheels, aluminum and steel.
William K.   10/11/2012 9:23:02 AM
NO RATINGS
Although there is undoubtedly some sort of anti-corrosion treatment applied to most OEM wheels, "the proof is in the performance." It certainly seems that the treatment is intended to last long enough for the car to be sold, and probably for th first year after that. But the person who gets the year-old trade-in is the one afflicted with the leaks. Of course, one other cause factor is the balance weights that are always installed, with the sharp-edged steel anchor tabs that will cut through any protective coating. Perhaps we need a new method of attaching balance weights to replace a system that came into use in the 1950's? Most other automotive technology has advanced a bit since then, after all.

Ann R. Thryft
User Rank
Blogger
Re: Wheels, aluminum and steel.
Ann R. Thryft   10/11/2012 6:41:17 PM
NO RATINGS
William, I'm curious to know if OEM steel wheels are treated with longer-lasting anti-corrosion coatings. Any idea?

William K.
User Rank
Platinum
Wheels, aluminum and steel.
William K.   10/11/2012 8:00:42 PM
NO RATINGS
My last vehicle with steel wheels was a 1985 Dodge van that I finally donated in 2003. The one time that I had to replace a damaged tire I did not see any rust or corrosion on the wheel except for the lug-bolt holes, which the paint came off when the nuts were torqued down. And I never had any rim leaks on those wheels, even after all of those years.The paint finish still was a good protector. And it probably was cheaper than whatever the aluminum wheels get.

Mydesign
User Rank
Platinum
Re: Any need to replace Steel wheels by Aluminium wheels?
Mydesign   10/12/2012 1:06:36 AM
NO RATINGS
1 saves
Ann, how the wheels are relating to carbon emissions? Irrespective of wheel type (Steel or Aluminum), majority of carbon emissions are coming from Engine and type of fuels, am I right. In my previous comment I had raised another concern about weight bearing capacity per cubic cm.

Ann R. Thryft
User Rank
Blogger
Re: Any need to replace Steel wheels by Aluminium wheels?
Ann R. Thryft   10/12/2012 11:57:16 AM
NO RATINGS
Mydesign, the aluminum wheels are part of lightweighting efforts to reduce carbon emissions. Lighter weight vehicles use less fuel per mile, thus reducing carbon emissions produced per vehicle, per given time period. This is in response to US and European regulations for both consumer and commercial vehicles. Her are a couple of DN articles on US efforts:
http://www.designnews.com/author.asp?section_id=1366&doc_id=249877
http://www.designnews.com/author.asp?section_id=1392&doc_id=250828

<<  <  Page 3/4  >  >>
Partner Zone
More Blogs from Engineering Materials
The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
Lots of people who write about robots say they give us jobs, instead of taking them away from humans. Based on the evidence in some recent studies, I'm not so sure.
A self-propelled robot developed by a team of researchers headed by MIT promises to detect leaks quickly and accurately in gas pipelines, eliminating the likelihood of dangerous explosions. The robot may also be useful in water and petroleum pipe leak detection.
Aerojet Rocketdyne has built and successfully hot-fire tested an entire 3D-printed rocket engine. In other news, NASA's 3D-printed rocket engine injectors survived tests generating a record 20,000 pounds of thrust. Some performed equally well or better than welded parts.
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 4 - 8, Introduction to Linux Device Drivers
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: August 12 - 14
Sponsored by igus
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