APPLICATION EXAMPLES HELICAL MILLS - ramp angle helical interpolation shoulder cut Insert style Cutting diameter Ramp angle max Min hole diameter (DH min) Max flat-bot

APPLICATION EXAMPLES HELICAL MILLS - ramp angle helical interpolation shoulder cut Insert style Cutting diameter Ramp angle max Min hole diameter (DH min) Max flat-bottom hole diameter (DH1 max) Max diameter Mill 1-14 40 3.8 6400 7547 80 Mill 1-14 50 2.7 8396 9605 100 Mill 1-14 63 1.9 10993 12147 126 Contouring Profiling Ae up to 50% of cutter 0. This can be used with or without coolant air blast depending on materials being machined. Slotting Full width cutting or profiling over 50% of the cutter 0. It is suggested to use coolant or air blast to evacuate chips. If necessary reduce coolant nozzle hole size which adds more pressure and the chip is forced out of the chip gash. Ramping Only machine to the depth of the first insert. Observe the ramping angles given in the catalogue. 1215 1080 1080 995 995 915 1075 945 945 875 875 760 270 210 175 245 190 160 215 175 145 KC522M 330 285 270 275 240 200 255 215 175 225 185 150 185 170 150 165 125 100 205 180 165 185 160 130 140 120 95 230 205 185 180 160 150 150 135 120 40 35 25 40 35 25 50 40 25 70 50 35 KC725M 260 230 215 220 190 160 200 170 140 180 150 120 150 135 120 130 100 80 170 150 135 155 130 110 115 100 80 - 35 30 25 35 30 25 45 35 25 60 45 30 420 335 280 385 295 250 340 275 230 550 340 310 230 275 190 225 205 160 360 285 240 485 310 275 215 250 170 200 175 145 325 255 215 450 275 255 190 230 145 175 160 125 295 235 200 455 280 255 190 260 160 205 185 145 295 235 195 395 255 230 175 230 135 185 160 130 265 210 175 370 230 205 160 210 155 140 115 240 190 160 FIRST choice starting speeds are in bold type. As the average chip thickness increases the speed should be decreased. depth of cut (ae) Insert geometry 10% 20% 30% 40% 50-100% .F..LDJ 008 017 023 006 013 018 006 011 015 005 010 014 005 010 014 .E..LDJ 008 020 035 006 015 026 006 013 023 005 012 021 005 012 021 mEmmLD 009 020 035 007 015 026 006 013 023 005 012 021 005 012 021 .E..GD 012 027 043 009 020 032 008 018 028 007 017 026 007 016 026 .S..GE 017 034 051 013 026 038 011 022 033 010 021 031 010 021 030 .S..GD 017 034 051 013 026 038 011 022 033 010 021 031 010 021 030 .S..GD2 017 040 058 013 030 043 011 026 038 010 024 035 010 024 035 D .H .E. 017 043 068 013 032 051 011 028 044 010 026 041 010 025 041 252 NORGAU 2 3 4 5 6 1 2 3 1 2 3 1-2 3 1 2 3 4 1 M K N H Indexable cutting tools