306 ダイヤモンドコーテッド工具を用いたアルミニウム合金管端末部のスピニング加工(塑性加工とその周辺技術(1),ものづくりにおける基礎研究と先端技術の融合)

概要

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Dry forming, which means press forming without lubricants, is an attractive forming technique for the zero emission of lubricants. As one of the dry press forming techniques, the application of dies coated with a CVD diamond film in forming tools has been proposed for their high tribological properties, abrasion resistance and heat resistance. On the other hand, in the spinning process which is the flexible process, the lubricant between the tool and the workpiece is required in order to smooth surface of product. So, the diamond coated tool is utilized in nosing process without lubricants in order to improve the surface roughness of the workpiece in this study. The effect of the diamond coating on the surface texture was confirmed. The surface roughness of the workpiece with the diamond coated tool was in the same range of roughness with the lubricant.
2010-11-27