Japan's Maruyama products developed a molding technology that cold-forged metal wires into complex shapes, and was exhibited at the 13th Manufacturing Partner Forum 2010 held from November 30th to December 1st. It is reported that at this stage, basic technology development has been completed and the feasibility of mass production is being explored.

Originally, this technology was called "one-stroke forging process" because it was deformed by a wire. In the case of the door lock, the conventional product is generally manufactured by riveting a "bar" shaped member in which a composite bar is bent by a plate-shaped member which is press-formed from a metal plate or the like. If it is changed to a one-piece forging process, since there is only one component, the delivery cycle can be greatly reduced. Moreover, there is no waste like stamping, so there is no material waste.

From the back of the prototype, the trace of the "one stroke" can be seen around the wire. But this is not to say that there must be insufficient strength. As far as the door lock is concerned, the existing product has the possibility of seam breakage between the components, and the developed product is not easily disconnected from the middle even if the indirect seam of the wire is separated. “This time it was prototyped according to the shape of the existing door locks, and it may be made into other shapes that are more suitable for the process,” said Kenji Ikeji, the representative of Maruyama.

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