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Net-Shape forging is the method for forming complex parts into the final shape without machining and heating. For example, as shown in the figures at right, the method forms a cylindrical material into the shape of a gear in a single process. The cycle time is 1-3 seconds, which means that the method can make about 30 pieces of parts each minute. Please see the process of the Net-Shape forging on the movie. |
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"Precision forging" refers to high-precision cold and warm forging. Net-Shape is the method for making parts having complex shapes using only a precision forging die and without additional machining. The dies used for precision forging form parts using a high-pressure press without heating and so should have great strength. Nichidai develops, manufactures and sells "precision forged dies" capable of realizing Net-Shape.
In the past, parts having complicated shapes were made by machining. In comparison to the "machining," Net-Shape has several advantages; for example, this method can reduce the total amount of materials to a half to a third (See the figure at left below). Thus, converting the processing method to Net-Shape forging contributes to the saving of resources and energy and increases the production efficiency greatly. As the production of parts is expected to be improved, to become more complex and to be diversified, Nichidai aims at introducing Net-Shape into the production of every type of formed parts. |
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| Net-Shape forging requires great strength and high precision and is an optimum processing method for high-quality, low-cost mass production. This method is mainly used for the production of parts for automotive engines, transmissions and driving mechanisms. |
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