GM Pioneers Use of Lightweight Magnesium Sheet Metal
NEWS
 

  1. Welcome to Ford Inside News – General discussion forum for Ford

    Welcome to Ford Inside News - a website dedicated to all things Ford.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join Ford Inside News today!
     
+ Reply to Thread
Results 1 to 3 of 3

Thread: GM Pioneers Use of Lightweight Magnesium Sheet Metal

  1. #1
    Mercury C557 2b2's Avatar
    Join Date
    Mar 2007
    Location
    N NW of Atlantis (Reno)
    Posts
    12,603
    Thanks
    1,981
    Thanked 1,056 Times in 808 Posts
    Blog Entries
    4

    GM Pioneers Use of Lightweight Magnesium Sheet Metal

    GM Pioneers Use of Lightweight Magnesium Sheet Metal - Media.GM.com
    Double-digit fuel economy gains possible with more substitution for steel and aluminum

    2012-10-23

    DETROIT – General Motors is testing an industry-first thermal-forming process and proprietary corrosion resistance treatment for lightweight magnesium sheet metal that will allow increased use of the high-strength alternative to steel and aluminum.

    GM wants to expand its use of low-mass parts on vehicles around the world and will pursue licensing opportunities related to this breakthrough technology. The goal is for suppliers to be able to use the process to provide significant amounts of magnesium sheet that will trim pounds from vehicle mass.

    The use of magnesium, which weighs 33 percent less than aluminum, 60 percent less than titanium, and 75 percent less than steel, will help customers save money at the gas pump, as will more efficient conventional engines and electric powertrains.

    Until now, automakers have struggled to make reliably strong and non-corroding magnesium sheet metal panels using traditional panel forming methods. GM’s patented process turns up the heat on magnesium to 450 degrees Celsius (842 degrees Fahrenheit), allowing the material to be molded into precise, rigid shapes.

    Using this process, GM developed a production-ready magnesium rear deck lid inner panel that withstood 77,000 robotic slams and 250-kilogram impact drops without any issues.

    Die-cast magnesium has been used in a variety of parts ranging from steering wheels to engine cradles, but GM is the first to use thermal-formed magnesium sheet metal in structural applications, and it expects magnesium sheet applications to grow with additional materials and process improvements targeted at reducing cost.

    “This innovative use of magnesium is just one example of how GM is leveraging breakthrough technologies that will benefit our customers around the globe,” said Jon Lauckner, GM chief technology officer and vice president of Global Research & Development. “Using high-strength lightweight materials such as magnesium and aluminum is one of the most effective ways to improve vehicle fuel economy and driving performance.”

    GM R&D recently announced an industry-first welding technology for aluminum, which is expected to enable more use of the metal on future vehicles.

    The United States Automotive Materials Partnership estimates that by 2020, 350 pounds of magnesium will replace 500 pounds of steel and 130 pounds of aluminum per vehicle, an overall weight reduction of 15 percent. This weight savings would lead to a fuel savings of 9 percent to 12 percent.

    On the production ready rear deck lid inner panel, GM can remove 1 kilogram (2.2 pounds) of weight compared to an aluminum deck lid inner panel.

    “Every gram of weight reduction matters when it comes to improving fuel economy,” said Greg Warden, GM executive director for global vehicle body engineering. “Being able to replace heavier metals with one of the lightest will help us deliver better fuel economy to customers around the world while also still providing the safety and durability they expect.”

    Automakers also have struggled to make magnesium corrosion resistant. GM’s proprietary treatment for thermal-formed magnesium resisted 10 consecutive weeks of 24-hour environmental tests involving salt spray, 100 percent humidity and extreme temperatures.

    “Like all of our advanced material vehicle parts, we subjected the magnesium trunk lid to the most severe strength and corrosion tests we know of, and it passed with flying colors,” said Jon Carter, GM R&D metals researcher. “We expect it to perform extremely well even in the harshest environments.”

  2. Remove Advertisements
    Ford Inside News
    Advertisements
     

  3. #2
    Ford Mondeo
    Join Date
    Sep 2007
    Posts
    1,348
    Thanks
    34
    Thanked 97 Times in 76 Posts

    Re: GM Pioneers Use of Lightweight Magnesium Sheet Metal

    Isn't magnesium flamable, and tough to put out once it ignites? Will we be seeing awesome sparks whenever it sideswipes another car?
    The early bird gets the worm..but the second mouse gets the cheese.

  4. #3
    Mercury C557 2b2's Avatar
    Join Date
    Mar 2007
    Location
    N NW of Atlantis (Reno)
    Posts
    12,603
    Thanks
    1,981
    Thanked 1,056 Times in 808 Posts
    Blog Entries
    4

    Re: GM Pioneers Use of Lightweight Magnesium Sheet Metal

    ^ two things from reading about this elsewhere
    - it's a magnesium/aluminum alloy...don't know it's fire potential
    - there apparently was a major crash at LeMans in the 50's of a Mercedes racecar with magnesium parts

  5. Remove Advertisements
    Ford Inside News
    Advertisements
     

Quick Reply Quick Reply

Register Now

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Similar Threads

  1. Replies: 7
    Last Post: 07-01-2010, 07:11 AM
  2. Ford Media: Fact Sheet - Ford Escape Hybrid Taxis
    By SobeSVT in forum Ford SUV/Crossover Discussion
    Replies: 1
    Last Post: 05-29-2007, 09:51 AM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Powered by vBadvanced CMPS v4.1.2