Beschreibung
The high energy demand and the need for rare resources such as tungsten or cobalt in the production of cutting materials create reasons to provide ecological and economical alternatives. Natural rocks could be such an alternative due to their high global availability and the low energy input required to make them usable as cutting tools. So far, however, no systematic investigation of the usability and suitability of natural rocks as cutting materials has been carried out. In this work, the usability of different flints as cutting materials is investigated. For this purpose an analysis of the rocks is carried out to characterize their properties. Subsequently, indexable inserts are ground from the rocks and applied in the turning of aluminum. It was demonstrated that it is possible to manufacture inserts made of rocks usable for the turning of aluminum and to link grinding result and operational behavior to their properties.
