Investigation on Residual Stress and Flank Wear of Tool Insert in Hard Turning of Chrome Plated EN24 Substrate

K.N. Mohandas, C.S. Ramesh, Eshwara Prasad Koorapati and N. Balashanmugam
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K.N. Mohandas: M.S. Ramaiah Institute of Technology, Bangalore, India
C.S. Ramesh: P.E.S. Institute of Technology, Bangalore, India
Eshwara Prasad Koorapati: JNT University Hyderabad, India
N. Balashanmugam: Central Manufacturing Technology Institute, Bangalore, India

International Journal of Manufacturing, Materials, and Mechanical Engineering (IJMMME), 2014, vol. 4, issue 2, 14-28

Abstract: In the present investigation the hard chrome plated surfaces were hard turned using PcBN cutting inserts. The results of the experiment showed that the hard turning can be applied for the finish machining of chrome plated surfaces. The influence of hard turning was observed when it was tested for residual stress distribution. The results disclosed that the chrome plating technhique has induced the compressive residual stress of -355.9MPa in the workpieces. These compressive residual stresses increased to a value of -723.3MPa after hard turning the chrome plated surfaces. But with worn out insert a tensile residual stress of 228.1MPa was observed in the workpiece. The results also revealed the variation of flank wear on the tool with different cutting inserts. The conclusions was drawn on the hard turning of hard chrome plated by adopting proper cutting conditions to replace the grinding operation by hard turning operation.

Date: 2014
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