S0.170.230.280.330.40N645440260165140S0.260.300.380.460.50S0.260.300.380.460.50N1,6001,100660415345S0.170.230.300.430.48C48被削材硬度強度径13.019.032.050.060.0被削材硬度強度径13.019.032.050.060.0工具鋼炭素鋼～HRc23～570 N/mm2～830 N/mm2NSN0.174806453304400.232601950.281651250.330.40105140～HRc23～28830～950 N/mm2NS0.093702550.131450.18930.200.2378アルミニウム合金SN1,2000.268200.300.384903100.462600.50鋳鉄～HRc21～270 N/mm2～800 N/mm2SNN6450.174804403300.230.281952401501250.331251050.40合金鋼HRc23～34830～1,110 N/mm2NS0.204403000.231800.181150.200.2395HRc34～381,110～1,260 N/mm2NS0.052651800.051070.08680.080.1057マグネシウム合金SN0.171,2000.238200.284903100.332600.40N=R.P.MS=1回転当たりの送り量（mm/rev.）ステンレス鋼HRc23830 N/mm2NS0.174803300.231950.281250.330.40105亜鉛合金樹脂チタン合金410 N/mm2NS0.092651800.131070.18680.200.2357D1201参考切削条件ハイスドリル
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