Основной каталог Kyocera 2021 - 2022 - страница 1066

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Trouble shooting Milling Check item Insert grades Cutting conditions Tool geometry Setting Machine Coolant Change to more thermal shock resistant grade Change to more welding resistant grade Edge strength / Honing Wiper edge (Relief angle) review Cutter dia. cutting width review Countermeasures Workpiece / Tool installation No. of inserts Corner angle Relief angle Chip pocket Change to tougher grade Change to harder grade Insert with chipbreaker Insert runout check Overhang length ap Tool path review Vc fz Power, rigidity Cutter rigidity Usage of mist Dry Trouble Higher (Larger) Larger More Larger Trouble Lower (Smaller) Smaller Less Smaller item Unsuitable cutting conditions Flank wear increase Unsuitable tool geometry Unsuitable cutting conditions Rake face wear increase Unsuitable tool geometry Edge damage Unsuitable cutting conditions Chipping, cracking Unsuitable tool geometry Unsuitable cutting conditions Edge breakage by thermal shock Unsuitable tool geometry Unsuitable cutting conditions Built-up edge Unsuitable tool geometry Unsuitable cutting conditions Poor surface finish Unsuitable tool geometry Unsuitable cutting conditions Burr formation Cutting accuracy Unsuitable tool geometry Unsuitable cutting conditions Workpiece chip off Unsuitable tool geometry *5 Poor planeness / parallelism Tool and workpiece evacuation R Unsuitable cutting conditions, *1 *2 *4 Heavy chattering, vibration installation Others *3 *6 Unsuitable cutting conditions Chip jamming Technical information Unsuitable tool geometry *1. To prevent chattering, the higher fz may be suitable. *2. To prevent chattering, the larger ap may be suitable. *3. Higher fz may be suitable. *4. Down-cut method is recommended for helical end milling. *5. If the surface is warped by cutting heat. *6. Compressed air is recommended. R38