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Technical Size of press to stamp out parts.

Discussion in 'The Hokey Ass Message Board' started by 392, Dec 9, 2018.

  1. 392
    Joined: Feb 27, 2007
    Posts: 930

    392
    Member

    2FEF06B8-63B8-4AEA-8001-6461BC6B849D.jpeg 78A141CA-F6FF-4CBE-962B-415E99A751EA.jpeg A0B8723D-08E4-4ADE-8814-AC93B61B3FCE.jpeg The thread on how smart etc got me thinking on how big the stamping presses were and are today on how much force it takes to stamp out everything from panels to hub caps. I was doing some housekeeping and thought of that after seeing this old bell housing. It’s 1/4 thick and the force needed to stamp this out had to be amazing.....and loud.
     
  2. Boodlum
    Joined: Dec 19, 2007
    Posts: 127

    Boodlum
    Member

  3. Some bell housings are hydroformed.
     
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  4. gatz
    Joined: Jun 2, 2011
    Posts: 1,382

    gatz
    Member

    All kinds of formulae available on the 'net.
    Depends on how involved & detailed you want to get
     
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  5. AngleDrive
    Joined: Mar 9, 2006
    Posts: 691

    AngleDrive
    ALLIANCE MEMBER
    from Florida

    When I lived in Mass, Wyman Gordon in North Grafton Mass had large presses. My Mother worked for them in the '50s. In 1953 they built a 50,000 ton press which is the largest press in North America and still in use. The ground will shake several miles from plant.

    Originally founded in 1883 in Worcester, MA, the Wyman-Gordon Company boasts more than 125 years of forging experience and first manufactured forgings for the aerospace industry during WWI. Recognizing the need for more expansive heavy manufacturing capabilities to support larger and more advanced aircraft designs, the Department of Defense built the forging facility now located in North Grafton, MA in 1946, equipping it initially with an 18,000 ton closed-die press. In 1953, the facility was expanded to include the 35,000 and 50,000 ton presses in what was referred to as the “Air Force Heavy Press Program”. From this program’s inception, Wyman-Gordon was chosen to operate the North Grafton facility due to the company’s long-term experience and reputation in the industry. In 1988, Wyman-Gordon purchased the facility outright from the U.S. Government and ran it as a private company until 1999 when Wyman-Gordon was acquired by Precision Castparts Corp. (PCC).

    Today, Wyman-Gordon has diversified its product portfolio beyond military applications to include forgings for many civil airliner and power generation applications. The 50,000 ton press is the largest operating in North America and is considered a strategic national industrial asset due to its essential nature in supporting various critical military aircraft production programs.
     
  6. 19Fordy
    Joined: May 17, 2003
    Posts: 6,435

    19Fordy
    Member

    It's even more amazing now the thickness of steel that can be cut using hydraulic force instead of just mechanical
    methods. Water jet cutting will astound you. Goggle it.
    Here's an 8 inch anvil being cut just like butter.
     
  7. s55mercury66
    Joined: Jul 6, 2009
    Posts: 3,678

    s55mercury66
    Member
    from SW Wyoming

    We had a 3000 ton Baldwin press in a grinding wheel factory I worked in. It broke a 2 inch thick barrel mold with 1200 tons one day, very exciting. Seismograph sensors picked it up 35 miles away. Just guessing from my press experience, but the ones used in the early '70's appear to be 500 tons, and they may not be using that much force to press with.
     
  8. Boneyard51
    Joined: Dec 10, 2017
    Posts: 2,714

    Boneyard51
    Member

    That demonstration was impressive. My Great Uncle, helped perfect that system, many years ago.
    What caught my eye was that junk foreign anvil. Typical example of the junk they’re shipping into our country every day!


    Bones
     

  9. Some refer to those as Anvil Shaped Objects (ASO)
     
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  10. continentaljohn
    Joined: Jul 24, 2002
    Posts: 4,188

    continentaljohn
    Member

    As a tool and die maker we worked on several different dies from .004 copper to 7/16 railroad cart wheel die. The wheel die was a deep draw so several hit achieved the final product. The concrete bed was 20 foot deep or something and press was 3 stories high and shook the whole building and super loud . I am sure things are done a bit different these days as that was 35 plus years ago. I still have slugs in my tool box from that job crazy cool machine shop..
     
  11. big duece
    Joined: Jul 28, 2008
    Posts: 5,595

    big duece
    Member
    from kansas

    Sheetmetal press... can't imagine what it would take to stamp anything thicker than 3/16". Or frame rails out of 11 gauge, awfully long dies for '32 frame rails. 0310sr_brookvle_04_z.jpg
     
  12. Atwater Mike
    Joined: May 31, 2002
    Posts: 9,776

    Atwater Mike
    ALLIANCE MEMBER

    I talked with the former co-owner of Fairlane Productions, who were manufacturing '32 rails, supposedly in competition with American Stamping...
    Can't recall, but think it was 100 ton stamping, some misalignments and other problems, I shuddered to think the expense of any mis-calc, resulting in late delivery, etc.
    I remember Roy Fjastadt telling of 'renting time' on a press, only so many rails could be produced in a narrow time window...I'm sure someone can elaborate on facts.
     
  13. anthony myrick
    Joined: Sep 4, 2009
    Posts: 4,453

    anthony myrick
    Member
    from al

  14. AngleDrive
    Joined: Mar 9, 2006
    Posts: 691

    AngleDrive
    ALLIANCE MEMBER
    from Florida

    Here is a link to ASC Rails http://ascrails.com/about.html
     
  15. Toner283
    Joined: Feb 13, 2008
    Posts: 1,311

    Toner283
    Member

    Here are a few short vids for your enjoyment.







    These are some of the machines that I ran daily for about ten years. The big press in the videos is a 2500 ton press, we also have in our shop a 1500 ton & a 3000 ton. the other two video's are an 800 ton progressive feed press and a 600 ton blanking press (to make the steel blanks to feed the bigger presses)

    Might want to turn down your volume a little bit. These suckers are loud. We make parts for way off topic cars. I'm not going to mention which manufacturer though. Even though we're stamping out parts for modern vehicles, the die technology really hasn't changed much in the last 50-60 years.

    And for a size reference, the part in the first video is the firewall stamping that fits from where it meets the floor pan of the vehicle to just below the windshield for a midsize 4-door sedan.
     
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  16. wisdonm
    Joined: Jun 20, 2011
    Posts: 428

    wisdonm
    Member

    I ran press for the A.O. Smith Corp. on time the largest frame maker in the world. We made car and truck frames for everyone and I mean everyone. I ran press from 100 ton to make brackets and small pieces to 4,000 ton to make truck tractor frames up to 3/4" thick. The bed was32 feet long and 3 feet wide. They were buried one story deep and two stories above ground. They had 200hp electric motors and we could make 600 truck frames, weighing up to 1,200 lbs each, per hour. Presses to make 3 foot sections of car frames were in the 250-500 ton range.

    The presses that were the most impressive were called kickups. They would take a perfectly rectangular sheet blank of steel the full length of the car or truck frame and stretch the two humps for the front and rear suspension, kickups, in one sideways stroke. This marvel was done by massive amounts of weight, that held the blank flat, preventing the blank from wrinkling while being stretched. Our smallest was 200 tons, largest 800 tons of weight. In 2000 I was running a 200 ton kickup that was installed in 1928 and had a plaque on it declaring that it was a national landmark.
     
  17. s55mercury66
    Joined: Jul 6, 2009
    Posts: 3,678

    s55mercury66
    Member
    from SW Wyoming

    As @wisdonm pointed out, a lot of large presses can have some age to them. At Carborundum Grinding Wheel Co., there were a half dozen Erie 500 tonners, that are over 100 years old. The 3000 ton Baldwin there was assembled in 1956, when the plant was built around it. The biggest issue we had with the older presses came from pitting in the cylinders, caused by the fact that water was used for hydraulic fluid in them for many years.
     
  18. Truck64
    Joined: Oct 18, 2015
    Posts: 3,578

    Truck64
    Member
    from Ioway

    When I was stationed in South Korea got to take a tour of an aircraft plant where they were making Black Hawk helicopters under license. When we got on the floor front and center there was this humongous piece of equipment... big as a house and twice as tall very old looking cast iron press or stamper something that said "Ohio" or something like that, they'd simply brought the whole dang thing over there. I remember being pissed off, not at the Koreans but it never made any sense to remove our manufacturing base. I don't think we can even make a decent can opener anymore.
     
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  19. After WWII, we split up some of the Nazi machinery with the Russians, the Germans had the biggest presses in the world at the time. I recall tonnage-requirement calculations when I was a tool and die apprentice.
     
  20. indyjps
    Joined: Feb 21, 2007
    Posts: 3,576

    indyjps
    Member

    Spent the first 8 years of my working kife in a GM stamping plant. 3-4000 tons on the draw die for large panels. Thats a standalone press with generally 5 separate presses per line. Smaller or less depth panels can be run on tranfer presses where the entire ram moves in 1 stroke and the parts are shuttled between stations on a transfer rail. Most household items are run on contiguous lines where the steel is fed from a roll and the strip is pulled thru the line, only cut into individual pieces in the final station. Lot of good youtube videos on press lines running.

    Press technology hasnt changed a lot. How parts are tranferred has. Panel design has changed a lot, less panel depth means less tonnage and the ability to run in more tranfer and contiguous lines that run a much greater rate than the standalone lines.
     

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