加工性に優れた無方向性電磁鋼板の磁気特性と被削性

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  • Magnetic Properties and Machinability of Non-oriented Electrical Steel Sheets with Good Punchability and Machinability
  • カコウセイ ニ スグレタ ムホウコウセイ デンジ コウハン ノ ジキ トクセイ ト ヒサクセイ

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Influence of S (Sulfur) content on the iron loss deterioration by punching operation and the machinability of non-oriented electrical steel sheets was investigated. The iron loss deterioration of the higher S steels (0.020-0.025 mass% S) by punching fine pieces is less than that of the lower one (0.005 mass% S), as a result of inhibiting plastic strain effectively near punching edge in the higher's ones. Moreover, cutting tool wear and cutting burr of the higher S steel is less than that of the lower's one. It is concluded that non-oriented electrical steels containing higher S show good performance for applying to small size motors, which can be required to be higher energy efficiency and higher productivity.

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