More catalogs by KYOCERA Precision Tools | Turning Technical Information 2016 | 38 pages | 2016-11-07

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basic formulas metric ï¿½ t urning vc ï¿½ x dm x n 1000 n Ã˜dm ï¿½ c utting speed vc cutting speed [m/min dm workpiece diameter [mm l n spindle revolution [min-1 ï¿½ p ower requirement pc ks x vc x ap x f 6120 x ï¿½ low carbon steel 190 medium carbon steel 210 vc cutting speed [m/min high carbon steel 240 ap depth of cut [mm low alloy steel 190 high alloy steel 245 php power requirement horse power [hp php ks x vc x ap x f 4500 x ï¿½ ks figure pc power requirement [kw f feed rate [mm/rev cast iron 93 ks specific cutting resistance [kgf/mm-2 malleable cast iron 120 ï¿½ mechanical efficiency 0.7 0.8 bronze brass 70 ï¿½ s urface roughness rz=h theoretical surface roughness [ï¿½m f feed rate [mm/rev rrï¿½ corner radius of insert [mm rzh f2 x 1000 8 x rrï¿½ ï¿½ rz=h f rr ï¿½ c hip removal volume q vc x ap x f q chip removal volume [cm3/min vc cutting speed [m/min ap depth of cut [mm f feed rate [mm/rev ï¿½ e dge position compensation ï¿½ ï¿½ ï¿½x r-rÂ´ x technical r ï¿½z r-rÂ´ x r28 cos sin ï¿½ 2 ï¿½ 2 ï¿½ ï¿½ ï¿½ 90Â° -1 sin 2ï¿½ ï¿½z ï¿½ ï¿½ rrï¿½ ï¿½ 90Â° -1 sin 2ï¿½ ï¿½x rÂ´rï¿½Â´ ï¿½x x-axis direction edge position compensation [mm toolholder type insert corner angle ï¿½ cutting edge angle ï¿½ ï¿½x ï¿½z ï¿½z z-axis direction edge position compensation [mm pcln 80Â° 95Â° 0.100 x r-rÂ´ 0.100 x r-rÂ´ ptgn 60Â° 91Â° 0.714 x r-rÂ´ 0.030 x r-rÂ´ pdjn 55Â° 93Â° 0.866 x r-rÂ´ 0.099 x r-rÂ´ r corner-r before change [mm pdhn 55Â° 107.5Â° 0.531 x r-rÂ´ 0.531 x r-rÂ´ rÂ´ corner-r before change [mm pvln 35Â° 95Â° 2.072 x r-rÂ´ 0.273 x r-rÂ´ pvpn 35Â° 117.5Â° 1.351 x r-rÂ´ 1.351 x r-rÂ´ psbn 90Â° 75Â° 0.225 x r-rÂ´ -0.293 x r-rÂ´ ï¿½ insert corner angle [Â° ï¿½ toolholderâ€™s cutting edge angle [Â° example compensation when changing corner-r from 0.80 to 0.40 using pcln type holder ï¿½x 0.100 x 0.80 0.40 0.04 mm ï¿½z 0.100 x 0.80 0.40 0.04 mm 800.823.7284 visit us online at kyoceraprecisiontools.com