HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
<<  <  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
Latest Analysis
FPGAs are the glue logic in today's systems, but what they glue together are a variety of diverse sub-systems with different interface requirements.
Enterprising Tesla Model S owner Steve Sasman seems to have figured out a way of recouping some of the cost on his car by renting the trunk out on AirBnB, the room/house rental website.
Everyone has had the experience of trying to scrape the last of the peanut butter or mayonnaise from the bottom of a glass jar without getting your hand sticky. Inventor Ron Jidmar thinks he has a solution to all of that nonsense with a flexible jar design that can be squeezed with one hand to lift contents from the bottom to the top of a jar or container, leaving the other hand free to scoop the contents out cleanly.
Made by Monkeys highlights products that somehow slipped by the QC cops.
2014 was big dark year for cyber attacks. Here's the month-by-month blow-by-blow breakdown.
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
2/25/2015 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.
Jan 26 - 30, IPv6 for Micros – Hands-On
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.
Last Archived Class
Sponsored by Stratasys
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service