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Assessing stability Optimisation tips Another important criterion affecting thechoice of cutter is the stability of the system.The symbols indicate different stabilityconditions. The entire machining process must be takeninto consideration when assessing stability (machine, clamping, component, etc.). The KENNAPERFECT selection matrix canalso be used to help choose the most suitable grade:

Extremely rigid system,very stable workpiece, very secure clamping of componentRigid system,stable clamping and componentUnstable system, unstable component,insecure clamping 1212 1 1 12 Notch wear
1.Choose one of the more wear-resistant grades2.Same grade, but with a more stable cutting edge Stability/rigidity Crater wear
1.Choose one of the more wear-resistant grades 2.One of the more wear-resistant grades, with amore stable cutting edge3.Reduce cutting speed Flank wear
1.Choose one of the more wear-resistant grades 2.Reduce cutting speed ighteneraleavy Fracture, break-out
1.Choose one of the tougher grades 2.Same grade, but with a more stable cutting edge 3.Reduce feed per tooth Edge build-up
Stability/rigidity 1.Same grade, but with a sharper cutting edge 2.Increase cutting speed

Die and Mould - 7354 A

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