Каталог Sumitomo токарные резцы (державки) для наружного точения - страница 5

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Cutting edge position ■ Cutting Edge and Nose Position ● Cutting Edge Position by Nose Radius (ISO Standards) (In the table, value of X and Y is shown for when the value of horizontal rake angle and cutting edge inclining angle is 0°) Cutting edge shape Dimensions (mm) Cutting edge shape Dimensions (mm) Symbol Shape Enlarged view of cutting edge RE X Y Symbol Shape Enlarged view of cutting edge RE X Y 0.4 0.291 − 0.4 0.024 0.089 WF 0.8 0.581 − 0.8 0.048 0.178 WF A RE LF 1.2 1.6 0.872 1.162 − − K 75˚ RE 1.2 1.6 0.072 0.268 0.096 0.357 C X X Y External Holders LF 90° 2.4 1.743 − 2.4 0.143 0.535 0.4 0.089 0.024 0.4 0.040 0.040 WF WF 0.8 0.178 0.048 0.8 0.079 0.079 95˚ B RE R 1.2 0.268 0.072 L RE 1.2 0.119 0.119 1.6 0.357 0.096 1.6 0.159 0.159 Y Y 75˚ 95˚ LF LF X 2.4 0.535 0.143 X 2.4 0.238 0.238 0.4 0.164 0.164 0.4 0.463 0.263 WF WF 0.8 0.329 0.329 0.8 0.925 0.471 RE D 1.2 0.493 0.493 N RE 1.2 1.388 0.707 Y Y 45˚ 1.6 0.658 0.658 X 3˚ 1.6 1.850 0.943 6 LF LF X 2.4 0.986 0.986 2.4 2.776 1.414 0.4 0.396 0.229 0.4 0.164 0.164 WF RE C WF 0.8 0.793 0.458 0.8 0.329 0.329 RE RE E 1.2 1.190 0.687 S 45˚ 1.2 0.493 0.493 Y 60˚ 1.6 1.587 0.916 X LF 1.6 0.658 0.658 Y LF X 2.4 2.381 1.374 OAL 2.4 0.986 0.986 D 0.4 − 0.291 0.4 0.396 0.229 WF 0.8 − 0.581 0.8 0.793 0.458 WF RE F 90˚ RE 1.2 − 0.872 T 1.2 1.190 0.687 R − Y 1.6 1.162 60˚ 1.6 1.587 0.916 LF X LF 2.4 − 1.743 2.4 2.381 1.374 Y 0.4 0.291 − 0.4 0.253 0.058 − S WF 0.8 0.581 0.8 0.506 0.116 WF 95˚ RE G RE 1.2 0.872 − U 1.2 0.759 0.175 X LF 1.6 1.162 − 1.6 1.013 0.233 LF Y − 90˚ X 2.4 1.743 2.4 1.519 0.350 T 0.4 0.344 0.033 0.4 0.002 0.033 WF 0.8 0.687 0.079 0.8 0.005 0.066 WF 55˚ RE 85˚ RE J 1.2 1.031 0.118 Y 1.2 0.008 0.099 LF 1.6 1.375 0.157 1.6 0.011 0.132 V Y X X Y LF 93˚ 2.4 2.062 0.236 2.4 0.017 0.198 ● How to obtain the insert nose position W Calculation method for nose position (mm) Value of IC and RE used in the calculation of B (mm) Inscribed circle Shape Calculation formula nominal value IC for calculation Nose symbol Nominal value RE for calculation RE 3.97 3.9688 02 0.2 0.203 ød Triangle B=3/2d−RE 4.76 4.7625 04 0.4 0.397 B 5.56 5.5562 08 0.8 0.794 6.35 6.3500 12 1.2 1.191 RE 7.94 7.9375 16 1.6 1.588 B ød Tetrahedron B=( 2−1)×(d/2−RE) 9.525 9.5250 24 2.4 2.381 12.70 12.7000 RE : 15.875 15.8750 ød Diamond B=(1/Sin(:/2)−1)×(d/2−RE) 19.05 19.0500 B 25.40 25.4000 C5