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RESEARCH PRODUCT
Interdependence Between Tool Fracture and Wear
A. PassannantiS. Noto La DiegaN. Albertisubject
Stochastic independenceOptimization problemBrittlenessComputer scienceMechanical EngineeringMetallurgyFracture (geology)Mechanical engineeringProbability density functionIndustrial and Manufacturing EngineeringTool materialdescription
Wear and fracture are the main causes of tool scrapping. However fracture plays a major role for increasing values of the hardness and brittleness of tool materials or when low-cobalt tungsten carbides are used or in interrupted cutting conditions where it is the most relevant factor for tool scrapping. In order to obtain the optimal values of the cutting speed both these factors should be considered. The hypothesis of stochastic independence among them simplifies the mathematical formulation of the optimization problem; but experimental investigations do not agree with this assumption and, as a matter of fact, the probability density function of tool fracture results to be dependent on the wear conditions. In the paper some experimental results will be reported; these results are then applied to the evaluation of the optimal cutting speed and tool replacement policy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1985-01-01 | CIRP Annals |