Friday, August 19, 2011

How medals are made?


The Design

    Computers are used to produce final drawingsThe whole thing starts with an idea, then that idea is translated into words and sketches, photographs and other reference material are also used as guides. A graphic designer will then render the idea and finally a medal designer produces the final drawing of your medal. Starting with an already rendered image cuts the design phase short, however the work of our medal designer who produces the final drawing is inevitable.

Making the Mold

    A plaster mould ready for customer approvalFor high-relief three-dimensional medals (example: portraits, scenes, etc...), a sculptor produces a first enlarged model sculpt on clay using fine cutting and grating tools. The clay model then will be cast in plaster and reduced to the proper size using a special 3D reducing pantograph and will then be used to produce the pressing die. Digital 3D modeling techniques are also used for that matter. 3D medals have the most appealing impressions, they are also known as miniature works of art.
    For 2-dimensional medals this whole process can be skipped. The final drawing can be used directly to produce the necessary tools for making the coining die, thus cutting the cost of die making tremendously.

An automatic reducing pantograph


Making the Steel Coining Die

    Steel coining die
    Using the tools produced in the previous phase, a die is produced. The die goes through several procedures before it can be used as a coining die. It may need to be turned off to be accommodated in the minting collar and minting press. The die surface may need to be smoothed as well. Finally, the die is heat-treated to harden it. The exact optimum degree of hardness must be achieved in order to avoid cracking the die under strong pressure while striking.

Making The Steel Cutting Die

    If your medal has a special shape, then a cutting die has to be produced. Producing cutting dies is a costly process, so unless you have clear reasons, we highly recommend that you choose a circular shape, better yet one of our standard sizes.

Getting Ready For Minting

    Strips of metal (brass, copper, nickel silver, silver or gold) of specified width and thickness are prepared from metal sheets. The strips are then cut using cutting dies to produce blanks. (unlike other mints, Absi Co. produces its own dies internally). If a Proof or Brilliant Uncirculated finish is desired then the blank planchets are polished (by tumbling or by a rotating brush).

Minting

    The minting press utilizes very high pressure (e.g. 500 tons), to impress upon the blanks a negative motive of the die. After fixing the top and bottom dies in the minting press, blanks are fed to the press and are stamped on both sides at once. If the medal is required to have a low relief then one strike is enough, however, Proof or High Relief medals may be struck two or more times. After each strike, the medal must be heat treated to reduce its hardness.

Finishing

    Depending on customer requirements, different procedures are used to produce different types of medals. Minted medals can be gold plated, silver plated etc... They can be chemically treated (artificially oxidized) to give them an antique appearance, sand blasting may be required, surface polishing may be applied, even hand color-filling may be required.
By Abdallah Absi

33 comments:

  1. Are you causes Gucci Belts Sale why people suffer from Papules are a small inflamed Gucci Quotes elevation portion of the Jimmy Choo Red Shoes skin.Now let us go ahead and find out what are the causes of Acne.There Jimmy Choo Shoes are changes in Gucci Quotes the bodyEarlier,blueberries have Jimmy Choo Designer rich vitamin C content.4.Decrease the intake of coffee.5.Avoid eating spicy food items as it can aggravate Snapback Hat World the Acne on your your Jimmy Choo Heels tissues and cells and combats infection. However, overconsumption of zinc can raise the toxic level in your body. The studies have also revealed Karen Millen Black that apple also contains anti Acne ingredients.Finally, Snap Back Hat Store avoid moving out into KarenMillens the open during the day.

    ReplyDelete
  2. A third NFL team in a year might be on the move. Following 2017 nfl super bowl jerseys in the steps of the Rams and Chargers, the Raiders 2017 Nike NFL Por Bowl AFC New England Patriots #12 Brady Red Jerseys are set to file relocation papers to NFL Nike Cowboys #4 Dak Prescott Jerseys move from Oakland to Las Vegas, according to Ian Rapoport 2017 Nike NFL Por Bowl NFC Green Bay Packers #12 Rodgers Blue Jerseys of NFL Network. Long cheap nfl jerseys anticipated as christian louboutin men flat a distinct possibility, the move will become official in the coming days once the Raiders file relocation papers, Rapoport indicated. Still uncertain is the exact financing mechanism for a christian louboutin uk new Christian Louboutin Women Flat stadium, estimated at $1.9 billion. Initial plans had indicated that the Raiders christian louboutin shoes would contribute louboutin outlet $500 million, the family of christian louboutin Panettone spiked leather wallet casino owner Sheldon Adelson would kick in $650 million, and nfl jerseys store a hotel tax in Clark County would add wholesale nfl jerseys $750 million. The status of that particular agreement remains in flux.

    ReplyDelete
  3. Et pour rendre un repas inoubliable, nous avons runi dans cet ouvrage tous les ingrdients du succs. downlodable driver Make life easier for yourself by downloading iBrr Bluetooth Receiver and Remote.

    ReplyDelete
  4. The app will continue to work offline and only sync again when back online. download apps After a good day, a tamagotchi needs to sleep, turn off the light and rock him.

    ReplyDelete
  5. Of course we write down our own flights, but this is just genius!" -- Michael H. download activation codes Explore the world - display data about the countries, islands, peninsulas, and highlands.

    ReplyDelete
  6. Scribble on a white background or on a photo, in a variety of colors, brush sizes and opacities. downlodable apps You can contribute to the future of the app by suggesting improvements.

    ReplyDelete
  7. Dominate your friends by creating killer words while exercising your brain. downlodable serial numbers Homebrew Beer Basics For Beginners - Home Brewing Tools.

    ReplyDelete
  8. Click on the coffee button to show the Starbucks for the route area. download videos Changed the pace of the game, now everything happens much faster.

    ReplyDelete
  9. Stretching and Tissue Work Maps with the latest Body Maintenance techniques to keep your body feeling good during the program. kakskachatfailynamobilu.ru From his crypt he jumps to a sledge and "whizzes" directly to his own playground.

    ReplyDelete
  10. - Get notified of new tweets fast, with notification center. Look for it Theres bright funny picture that greatly fits the sense of proverb.

    ReplyDelete
  11. Let the MOVIE IDEA GENERATOR be your creative muse! download games The action game is on and the stage and center is set.

    ReplyDelete
  12. Reports module (like Discipline report, Accident rescue report. downloadfreethingshere.top Hold your finger on mail attachment until you will see "open with" box.

    ReplyDelete
  13. Finding your quick daily pick-me-up has never been so easy and fun. awesomedownloadwareztoday.us From Jeremy King: SideSwipe lite introduces you to a new way to control your music with simple gestures.

    ReplyDelete
  14. Kein langes Eingeben der Visitenkarten nach Messen, Tagungen und Meetings mehr. downloadfreethingshere.top Easy to download, but I was disappointed that the picture wouldn't cover my whole computer screen.

    ReplyDelete
  15. Each time a level is won, your child wins a dolphin picture. http://downloadfreefilesfromhere.gdn Matching Games (Memory Games)- Your child will learn and memorize numbers, match numbers to number names or numbers in different languages.

    ReplyDelete
  16. /MyBMWConnectedDrive to sign-up or retrieve a forgotten password. http://downloadtorrentfromsadie.download It is a good first step to know how to pronounce a character and its associated meaning.

    ReplyDelete
  17. Weather -Wellington Now gives you an easy to read weather forecast for your location. downloadsoftwarefrommackenzie.online Tr-zu-Tr Verbindungsausknfte in Echtzeit und mit Strungsinfos.

    ReplyDelete
  18. Download the app and enjoy the wonders of the lands of North West of Sardinia. http://bestdownloadfilesonline.pro From Iceberg Reader: It's Okay to Be Different Todd Parr Little, Brown Books for Young Readers November 16, 2008

    ReplyDelete
  19. An impressive share, I just given this onto a colleague who was doing a little analysis on this. And he in fact bought me breakfast because I found it for him.. smile. So let me reword that: Thnx for the treat! But yeah Thnkx for spending the time to discuss this, I feel strongly about it and love reading more on this topic. If possible, as you become expertise, would you mind updating your blog with more details? It is highly helpful for me. Big thumb up for this blog post!

    Click Here
    Visit Web

    ReplyDelete
  20. An impressive share, I just given this onto a colleague who was doing a little analysis on this. And he in fact bought me breakfast because I found it for him.. smile. So let me reword that: Thnx for the treat! But yeah Thnkx for spending the time to discuss this, I feel strongly about it and love reading more on this topic. If possible, as you become expertise, would you mind updating your blog with more details? It is highly helpful for me. Big thumb up for this blog post!

    Mee.nu
    Website

    ReplyDelete
  21. There are some interesting points in time in this article but I don’t know if I see all of them center to heart. There is some validity but I will take hold opinion until I look into it further. Good article, thanks and we want more! Added to FeedBurner as well

    Stylist-profi.ru
    Information
    Click Here
    Visit Web

    ReplyDelete