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The metallurgical observation and measurement analysis of the chip morphology and cutting force in high-speed turning of AISI-1045 hardened steel were performed. The influences of workpiece material hardness, cutting condition, serrated chip morphology and adiabatic shear instability on cutting force were analysed. The investigations indicate that two types of serrated chips with deformed adiabatic...
A finite element method involving Johnson-Cook material model and fracture criterion was used to simulate the serrated chip morphology during high speed machining AISI 4340 hardened steel in different rake angles using commercial FE software ABAQUS. The effects of rake angle and chip morphology on cutting force were discussed. The investigation indicates that the simulation results are consistent...
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