Abstract
Due to the enormous engineering advancement in modern industries, the competition in manufacturing technologies has been increasingly intense as can be seen in automobile and aeropspace industries. Nickel‐based superalloys are widely used in the manufacture of components for aircraft turbine engines, for cryogenic tankage, liquid rockets, reciprocating engines, space vehicles, heat‐treating equipment, and in petro chemical industries because of their ability to retain high strength at elevated temperatures. But, because of high strength, poor thermal diffusion and work hardening, the cutting of Nickel‐based superalloys results in the life of tools and work efficiency being reduced. This paper investigates the influence of shearing and ploughing mechanisms on milling characteristics of Super‐alloys by analytical force models of face milling and ball end milling processes. The effect of flank wear on shearing and ploughing cutting constants is then studied through milling experiments. According to the experimental results, increase of flank wear only affects the shearing cutting constant slightly, but the ploughing cutting constant increases significantly with flank wear.
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