Forces and wear in high-speed machining of granite by circular sawing

摘要

In stone sawing process, the most adopted tool type is the circular diamond blade, whose duration and performance are influenced by various elements. These factors can be grouped into four categories: the mineralogical characteristics of the material to be machined; the working conditions, such as the depth of cut, the feed rate and the cutting speed; the production process of the diamond segment and the characteristics of both the matrix and the diamond, such as the size, the type and the concentration of the diamonds and the metal bonding formulation hardness. A key factor to increase productivity and reduce processing costs is cutting speed. In fact, the current trend is to adopt ever higher cutting speeds in order to reduce production times and costs.