38 Каталог GUHRING 2016 Режущий инструмент для обработки наружной и внутренней резьбы Стр.26

Каталог GUHRING 2016 Режущий инструмент для резьбы Стр. 26 0038 Lab2u

Steel FLUTELESS TAPS STEEL Thread depth Tool material Type/form Surface Coolant delivery Shank tolerance <1,5xD HSS-E N/C h9 HSS-E-PM N/C h9 Solid carbide N/C axial h6 <3xD HSS-E N/C h9 N/C h9 N/C h9 THROUGH HOLES AND BLIND HOLES Thread type MF UNC UNF BSW NPT NPTF EG M MJ MJF UNJC UNJF PG Tolerance Article no. / page 4H 6HX 921/925 149 6G 6GX 920 150 6HX 929 165 6G 6GX 928 168 2B 2BX 2273/2274 182 2B 2BX 1283/2275 183 966 184 6H Mod. 4HX 4HX 3BX 3BX Suitable lubricant 1255/1256 149 903/952 149 1257/1258 166 1740 167 2518 151 / /A O/0/A 0/ /A 919/923 152 918/922 153 1275/927 169 1277/926 172 1582/1583 182 1584/1585 183 1586 184 2012/2013 152 2008 170 / /A 1587/1589 152 1588/1590 153 1591/1593 169 1592 171 /A No 1 O = Air = Neat oil O = Soluble oil A = Paste = Minimal quantity lubrication (MQL) g Group of materials strength Material Material example no. Recommended cutting speed vc m/min Structural and free cutting steels, heat-treatable steels unalloyed <800 N/mm2 S235JR C15 11SMnPb30 1.0037 1.0401 1.0718 12 15 35 15 15 15 S355J2 1.0577 Free-cutting steels, 800 -Unalloyed case hardened 2 C60 1.0601 12 steels, Nitriding steels 1000 N/mm i i 31CrMo12 1.8515 15 35 15 15 15 Alloyed heat-treatable steels, tool steels, high speed steels 800 -1200 N/mm2 42CrMo4 36CrNiMo4 X36CrMo17 HS 6-5-2 1.7225 1.6511 1.2316 1.3343 10 12 25 12 12 12 M G P 26 GUHRING