ねじれ刃エンドミルの断面形状と曲げ剛性

書誌事項

タイトル別名
  • Cross-sections and Flexural Rigidity of Helical End Mills
  • ネジレハ エンド ミル ノ ダンメン ケイジョウ ト マゲ ゴウセイ

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説明

This paper deals with a numerical calculating method of flexural rigidity of radial cross-sections of helical end mills. The results are as follows. (1) Flexural rigidity is obtained by eq. (3) that is calculated by using coordinates of triangular elements including the center of end mill. (2) End mills behave isotropic with three teeth and more but anisotropic with two teeth. Such results are analysed by the numerical calculating method in the present work. (3) It is clear that a fillet of shank plays an important role in the rigidity of end mill. Calculated values of deflection of end mills show a good coincident with empirical data by static loads at the bottom of end mill. (4) The radial cross-sections give considerable similarity among various diameters of end mills, and rotational symmetricity and congruency among teeth of an end mill in the same helical angle in macroscopic view point.

収録刊行物

  • 精密機械

    精密機械 49 (6), 735-740, 1983

    公益社団法人 精密工学会

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