AL2O3 multilayer plate

摘要

The layer structure of a cutting plate produced according to a chemical vapor deposition CVD method contains a thick outer covering layer of medium temperature (MT) TiCN, and a multilayer Al₂O₃ layer arranged beneath the covering layer. Said multilayer Al₂O₃ layer consists of, at least, two aluminum oxide layers between which TiCN layers, and optionally TiAlC-NO layers for improving adhesion, are arranged. One such overall design has especially good chip removal properties.