ABSTRACT
High-speed machining (HSM) or high-speed cutting (HSC), for a given material, is defined as the cutting speed above which shear localization develops completely in the primary shear zone. It is preferable to define machining speeds quantitatively in terms of specific ranges. One suggestion is that 600-1,800 m/min should be termed as HSM, 1,800-18,000 m/min very HSM, and >18,000 m/min as ultra-HSM. In case of very difficult-to-machine materials, it is preferable to use the term high-throughput machining rather than HSM in order to maintain a proper focus on realistic machining conditions. HSM finds many industrial applications due to the development of tougher, more refractory tool materials and of HSM spindles. HSM can be used to machine parts that require the removal of significant amounts of material and to machine long, thin webs. The need to reduce cost and increase machining productivity has created new interests in HSM.
