![die design handbook sme die design handbook sme](https://cart.sme.org/ProductImages/BK90PUB4.jpg)
![die design handbook sme die design handbook sme](https://www.sme.org/globalassets/sme.org/technologies/articles/2019/10---october/toolmaker-books.jpg)
Most contract manufacturers of the time produced metal stampings in single-operation dies and presses. The first edition of the Die Design Handbook (American Society of Tool and Manufacturing, 1955) contains an entire chapter on progressive dies, and offers numerous examples and illustrations of progressive-die designs and die strips for such parts.Īfter World War II, the U.S. The use of progressive dies during the first half of the 20th century was limited primarily to companies producing their own products in very high quantity-electric-motor components, for example.
![die design handbook sme die design handbook sme](http://www.industrial-electronics.com/engineering-industrial/images/fund-tool-dsgn_8-34.jpg)
Lewis contains the earliest published record I could find to a progressive die. A book by Oberlin Smith titled, The Press Working of Metals (Wiley and Sons, 1896), describes “follow-on” tooling and “successive gang cutting” in a manner that suggests that they may be early predecessors of the progressive die. In 1796, a Frenchman named DeVere earned a patent for “Dies for Punching and Drawing Sheet Metal,” perhaps the first of its kind.Ī significant advancement in metal-stamping operations came with the development of the progressive stamping die. The first record of punches and dies being used in a machine having guides (or s) to ensure punch-die alignment appears in the 15th century, when a German locksmith used the process to manufacture hinges. Even today people occasionally speak of coins being “struck.” The hammer method was used well into the Middle Ages. A metalworker placed a blank between these two dies and the upper die was struck with a heavy hammer, rendering a positive image on the blank (Fig. However, these artifacts do not show that the use of punches and dies was equally known.Įventually, coins were struck using two coining dies: a lower die depicting the coin in a negative form and a companion upper die. (ref: J.L Lewis, Dies and Die Making, Journal of Commerce, 1897). Old coins reveal that the art of die sinking-a process that creates a cavity, or opening, of a specific size and shape for casting or forging-was known to the ancient Greeks at least back to 800 B.C. Objects made from metals were necessary for industry, farming, jewelry-making and defense purposes. As more and more products and tools began to be made from metals, society needed more people skilled in the craft of metalworking. Metalworkers were valuable members of early societies. Eventually, the art of extracting and smelting metals and forming them into usable objects evolved-commonly referred to as metalworking.
#DIE DESIGN HANDBOOK SME FREE#
Following the discovery of fire, humans learned that adding heat to certain rocks (ores) would free the metal from the rock. Prior to the discovery of metals, people used simple hand tools made from bone, rock and wood.