Основной каталог Kyocera 2021 - 2022 - страница 750

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MagicDrill DRS Applicable inserts Cutting conditions by application [Workpiece material: S50C] Applications Plain surface Slant surface Half cylindrical Hole expansion Concave surface Cored hole Stacked plates Shape of workpiece Vc(m/min) 80 80 Not Notrecommendedrecommended80 Notrecommended Not available DRS f(mm/rev) Concave surface0.080.04NotNot0.04NotrecommendedrecommendedContinuous partrecommendedNot available 0.08 Coolant (Internal) Yes Yes - - Yes - - · In case of using external coolant system, chip evacuation will be bad. Therefore ap should be measured within 1.5 times (1.5 x DC) of drill diameter (DC). DRS recommended cutting conditions (Coolant) DRS hole bottom shape (mm) Recommended insert grades DC A B C Workpiece material ( Vc: m/min)MEGACOAT f (mm/rev) 10.0 2.2 2.80 0.210.32.32.850.2 PR1230 PR1210 10.5 2.3 2.95 0.2 K Low carbon steel 80~100 - 0.06 11.0 2.4 3.10 0.2 11.5 2.5 3.25 0.2 Carbon steel 80~100 - 0.08~0.1 12.0 2.8 3.20 0.3 Alloy steel 80 - 0.04~0.06 12.5 2.9 3.35 0.4 Mold steel 80 - 0.04~0.06 DC Stainless steel(Austenitic related) 70~80 - 0.05~0.06 Gray cast iron - 80~100 0.08~0.1 : 1st recommendation : 2nd recommendation 1. Apply a sufficient amount of coolant. 2. If cutting speed is decreased too much from above condition, chip evacuation performance will deteriorate. A B If the feed rate is increased too much from above condition, inner edge chip evacuation will deteriorate. If the feed rate is decreased too much from above condition, outer edge chip evacuation will deteriorate. 3. If chips are too long when low carbon steel drilling, increased the cutting speed to 120~150m/min. If this does not solve the problem, try step feeding. [How to step feeding] 1. Cut 1~2 mm 2. Return 0.1 mm 3. Repeat 1. and 2. K80 Drilling C