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At the 28th Japan International Machine Tool Show (JIMTOF2016) held at the Ariake International Convention and Exhibition Center in Tokyo from November 17 to November 22, Japan's Seiko exhibited a new version of the "CFRP" Direct Spindle with CFRP Shaft ". The goal is to make the spindle lightweight by using CFRP, thereby increasing the productivity of CNC machine tools. Product time has not been determined.
Development of products using steel and CFRP composite materials, the use of CFRP steel will be wrapped around the outer structure. The moment of inertia is reduced by about 30% compared to the conventional product using "SCM420" alloy steel, and the critical speed (the rotational speed at which a resonance point is formed) increases by about 40%. When the moment of inertia is low, the time it takes for the spindle to start and stop can be shortened. High critical speed, even if the increase in spindle speed, it is not prone to vibration. This will shorten the tool change and cutting their own time, improve production efficiency.CNC Machining milling parts metal Manufacturer
Japan Seiko will study the selection of materials and manufacturing methods, continue to promote the development.