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
10/5/2012

This Alcoa 45mm aluminum wheel for offset trailers is 37 percent lighter than a steel equivalent and has a maximum load per wheel of 5,000kg. (Source: Alcoa)
This Alcoa 45mm aluminum wheel for offset trailers is 37 percent lighter than a steel equivalent
and has a maximum load per wheel of 5,000kg.
(Source: Alcoa)

Return to Article

View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 4/4
Charles Murray
User Rank
Blogger
Re: Steel vs. aluminum
Charles Murray   10/5/2012 5:46:10 PM
NO RATINGS
Dave, what are the differences between forged aluminum and steel, in terms of modulus of elasticity, compressive strength and whatever else might be relevant here?

Dave Palmer
User Rank
Platinum
Steel vs. aluminum
Dave Palmer   10/5/2012 2:52:32 PM
NO RATINGS
@Ann: Although steel is stronger than aluminum, it's not really too surprising that forged aluminum wheels are stronger than steel wheels made from sheet metal -- the designs and manufacturing processes are completely different.  A forged steel wheel would be much stronger than a forged aluminum wheel, but would also weigh a lot more. (Forged steel wheels make sense for railroad cars, but definitely not for on-road applications).

The lifecycle analysis is very interesting.  It is very comprehensive, and all of the assumptions seem to be reasonable.  It makes a convincing case.

Ann R. Thryft
User Rank
Blogger
Re: Lifecycle
Ann R. Thryft   10/5/2012 12:04:31 PM
NO RATINGS
Lou, you're certainly right about the recyclability of aluminum, and steel too to a somewhat lesser extent. But it's also true that LCA has to look at everything. In fact, the latest concept of the life cycle is "cradle-to-cradle", not "cradle-to-grave." CtoC includes that last link in the chain that closes the loop (to mix metaphors) of recycled material going back into the product.

naperlou
User Rank
Blogger
Lifecycle
naperlou   10/5/2012 11:44:20 AM
NO RATINGS
Ann, you mention end of life phases when talking about the life cycle cost analysis.  You mention recycling and disposal.  Steel and aluminum of this type will certainly be recycled.  It has been known for some time that aluminum recycling is extremely effecient.  I think it uses about 5% of the energy to recycle aluminum as it does to refine it from bauxite.  Steel is also effecient, although I am not sure of the ratio.  Steel mini-mills are the most effecient steel mills becuase they use scrap.  So, I assume in this case the wheels of both types will be recycled.

It is good, though to see such comprehensive analysis.  If you are looking at full lifecycle costs, then you really have to look at everything.

<<  <  Page 4/4
Partner Zone
More Blogs from Engineering Materials
A tiny humanoid robot has safely piloted a small plane all the way from cold start to takeoff, landing and coming to a full stop on the plane's designated runway. Yes, it happened in a pilot training simulation -- but the research team isn't far away from doing it in the real world.
Some in the US have welcomed 3D printing for boosting local economies and bringing some offshored manufacturing back onshore. Meanwhile, China is wielding its power of numbers, and its very different relationships between government, education, and industry, to kickstart a homegrown industry.
You can find out practically everything you need to know about engineering plastics as alternatives to other materials at the 2014 IAPD Plastics Expo. Admission is free for engineers, designers, specifiers, and OEMs, as well as students and faculty.
IBM's "sunflower" solar concentrator converts 80% of the sun's radiation into useful energy.
Some studies say that robots take away certain jobs from humans, but give us others in return. So far that's worked in the past, but things may be changing.
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
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