摩擦切断に関する研究

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タイトル別名
  • マサツ セツダン ニカンスルケンキュウ
  • Experimental Study on Friction Cutting

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説明

Friction cutting has a convenient characteristic that is negrisible small wear of a friction wheel, but is used not frequently than the circular saw method or the abrasive wheel method for cutting, and the reports about the friction cutting are few. There fore,in order to obtain information concerning the characteristics of friction cutting, experimental studies have been carried out,and the results obtained are as follows. 1) In friction cutting of a steel sheet,friction speed about 40m/s and contact pressure :arger than O.6kg/〓 are suitable cutting conditions. 2) The cut-off speedand friction force are smaller for more easily oxidized material among ferrous metals used in the experiments. 3) The cut-off speed under oxygen jet increases twenty times as large as that in the air. 4) The characteristics of friction cutting are little influenced by the nature of friction wheel materials. 5) When the contact pressure in the abrasive wheel method is one tenth of that in friction cutting, the cut-off speed in the abrasive wheel method is almost equal to that in friction cutting, but the cutting force ratio in the abrasive wheel method is considerably larger than the friction coefficient in friction cutting.

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