Varieties of Materials used as a Cutting Tool from ancient time to modern world. It has traveled a long journey from ordinary stones to the Precious stones i.e. “Diamond”. We will discuss here majority of Materials used as Cutting Tools in modern time.
High Speed Steels (HSS)
High Speed Steels is an alloy of many metals such as Molybdenum, Tungsten, Chromium Steels, Cobalt, Vanadium etc. and is commonly referred to as HSS. This cutting tool material is in existence for more than a century and still it plays vital role in metal cutting applications. It is widely used in manufacturing of Saw Blades, Drill Bits and Taps. Depending upon the combination of alloying elements; HSS is produced in different grades.
- HSS – It is a standard molybdenum HSS and specified as M2 grade.
- HSSE – It is similar to M2, but with 5% Cobalt added and specified as M35 grade.
- HSSE-V3 – It is similar to M35 Grade, but 3% Vanadium is added to stretch it’s applications area. Addition of 3% Vanadium increases it’s hot hardness which help to achieve higher cutting parameters or longer tool life.
- HSSE-PM – Now a days; most of the cutting tools are manufactured with Powder Metallurgy process, and HSS is no exception. HSSE-PM tools bridges gap between HSS and Tungsten Carbide. Since it is made out of powder particles it has more wear resistance (than HSS) while maintaining it’s toughness. An ideal cutting tool material for critical machining applications.
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