Общий каталог Mitsubishi 2020 - 2021 - страница 1307

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INDEXABLE MILLING RECOMMENDED CUTTING CONDITIONS y Dry Cutting Cutting Speed ( inch) Cutting Width ae Cutting < .25DC .25─.5DC .5─.75DC DC(Slot) Work Material Properties Grade Conditions Cutting Speed vc (SFM) P MP6120,VP15TF 755 (590 ─ 885) 720 (560 ─ 850) 590 (460 ─ 690) 590 (460 ─ 690) Hardness Mild Steel < 180HB MP6130 655 (490 ─ 785) 620 (460 ─ 755) 490 (360 ─ 590) 490 (360 ─ 590) Hardness MP6120,VP15TF 590 (460 ─ 690) 560 (425 ─ 655) 460 (360 ─ 525) 460 (360 ─ 525) Carbon Steel 180 ─ 350HB Alloy Steel < 350HB Alloy Tool Steel (Annealing) MP6130 490 (360 ─ 590) 460 (330 ─ 560) 360 (260 ─ 425) 360 (260 ─ 425) MP6120,VP15TF 395 (295 ─ 460) 360 (260 ─ 425) 330 (230 ─ 395) 330 (230 ─ 395) Hardness Pre-hardened Steel 35 ─ 45HRC MP6130 330 (260 ─ 395) 295 (230 ─ 360) 260 (195 ─ 330) 260 (195 ─ 330) M Hardness MP7130,VP15TF 590 (460 ─ 690) 560 (425 ─ 655) 460 (360 ─ 525) 460 (360 ─ 525) < 200HB Austenitic Stainless Steel Hardness MP7130,VP15TF 490 (360 ─ 590) 460 (330 ─ 525) 360 (260 ─ 425) 360 (260 ─ 425) > 200HB Hardness Duplex Stainless Steel MP7130,VP15TF 460 (360 ─ 560) 425 (295 ─ 490) 330 (230 ─ 395) 330 (230 ─ 395) < 280HB Ferritic and Martensitic ─ MP7130,VP15TF 590 (460 ─ 690) 560 (425 ─ 655) 460 (360 ─ 525) 460 (360 ─ 525) Stainless Steel Precipitation Hardening Hardness MP7130,VP15TF 425 (330 ─ 525) 395 (260 ─ 460) 295 (195 ─ 360) 295 (195 ─ 360) Stainless Steel < 450HB K MC5020 820 (655 ─ 985) 785 (620 ─ 950) 690 (525 ─ 850) 690 (525 ─ 850) Tensile Strength Gray Cast Iron < 350MPa VP15TF 655 (490 ─ 820) 620 (460 ─ 785) 525 (360 ─ 690) 525 (360 ─ 690) MC5020 590 (490 ─ 655) 560 (460 ─ 620) 490 (395 ─ 560) 490 (395 ─ 560) Tensile Strength Ductile Cast Iron < 800MPa VP15TF 425 (330 ─ 490) 395 (295 ─ 460) 330 (260 ─ 395) 330 (260 ─ 395) N Content Aluminum Alloy TF15 1970 (1310 ─ 3280) 1970 (1310 ─ 3280) 1970 (1310 ─ 3280) 1970 (1310 ─ 3280) Si < 5% H Hardness Hardened Steel VP15TF 295 (230 ─ 330) 280 (195 ─ 330) 230 (165 ─ 260) 230 (165 ─ 260) 40 ─ 55HRC Note 1) These cutting conditions should be referenced for standard shank types (last letter in designation is S) and arbor shank types. If there is chatter, insert chipping, etc. during machining, alter conditions accordingly. Note 2) Chattering vibration is more likely under the following circumstances. Use a cut and feed per tooth that are at minimum recommended L conditions or below. • When tool overhang is long (using a long shank, screw-in type, etc.) • Rigidity of machine, work material or attachment of work material is low INDEXABLE MILLING • Corner radius during pocket milling Note 3) A type with fewer teeth is recommended when the depth of cut in the radius direction (ae) is .5 DC or more. Note 4) Wet cutting is recommended, when focusing on the surface finish. (Tool life is shorter than for dry cutting.) Note 5) When using under higher than recommended cutting conditions, or for long periods of time, the clamp screw may become fatigued and break during machining. Please change out the clamp screw periodically. L132