Основной каталог Winstar 2021 - страница 701

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Technical Data Troubleshooting in Insert Trouble Occurrences Countermeasures 1.Use heat resistant grades Intermittent heating of the cutting edge. 2.Use positive or large rake tools High speed, high volume metal removal. 3.Increase nose radius 4.Reduce speed, feed or depth of cut Thermal Crackin 1.Use tougher grades 2.Use negative or smaller rake tools Cutting tool excessively brittle. 3.Increase nose radius 4.Use increased edge land Chipping 5.Increase cutting speed 1.Use harder and more wear resistant grade Cutting tool too soft. 2.Reduce cutting speed Surface speed too fast. 3.Increase feed 4.Use coolant Excessive Flank Wear 1.Increase approach angle Cutting material working harden cause 2.Reduce cutting speed and feed serious wear of insert. 3.Use high lubricity coolant Notching 1.Increase cutting speed Cutting speed too slow for material 2.Use friction reducing grade being machined. 3.Use high lubricity coolant Built-Up-Edge 1.Reduce cutting speed or feed Heavy feeds or higher cutting speed. 2.Use polished tools to reducing friction 3.Use more heat resistant grade Deformation Customized & Tooling 1.Use a harder grade Excessive heat and pressure welding of 2.Reduce cutting speed and feed chip to rake. 3.Use high lubricity coolant Crater Wear ✽ Pictures from Kennametal Tooling Catalogue E014