ABSTRACT
Cutting tools made of advanced ceramics have the potential for high speed finish machining as well as for high removal rate machining of difficult-to-machine materials. The raw materials used in these ceramics are abundant, inexpensive, and free from strategic materials. In spite of this, solid or monolithic ceramic tools are currently used only to a limited extent partly as a result of certain limitations of these materials and partly because of the inadequacy of the machine tools used. The advances in ceramic materials and processing technology, the need to use materials that are increasingly more difficult to machine, increasing competition, and rapidly rising manufacturing costs have opened new vistas for ceramics in machining applications. The development of ceramic tool materials can be broadly categorized into three types: monolithic forms, thin coatings, and whisker-reinforced composites. Such a classification, which provides a totally new perspective on ceramic tool materials and broadens their scope considerably, is justified because it is the ceramic addition that makes the tool material more effective [ 1]. This chapter presents an overview of advanced ceramic tool materials.
