Simulation Prediction and Experiment of Brittle Damage of Cemented Carbide Microgroove Turning Tools Based on Peridynamics

Brittle damage is a key factor restricting tool life extension. The peridynamic (PD) theory was applied to explain and predict the brittle of near-field cutting edge cemented carbide microgroove turning (CCMTT) for first time in this study, PD modeling complex surface realized. results showed that accuracy CCMTT can reach ±3.4%. displacement material points caused by combined effect external load internal interaction force, former dominant. There no linear relationship between calculation time; instead, there are fluctuations maximum increase point main direction. Only microdisplacements occur under given conditions. accumulation microcracks microdisplacement does not transition threshold form macrocracks. This agrees well with experimental results, relative error be controlled within 3.2%.