The Effect of Cutting Speed on Precision Hard Turning of Hardened Steel

Abstract:

By combining cutting experiment with finite element method (FEM) simulation, the effect of cutting speed on cutting force, cutting temperature and workpiece surface residual stress has been studied in precision hard turning of hardened steel GCr15 with PCBN. The research results indicate that with rise of cutting speed, cutting force somewhat decreases and periodically changes because of metal softening effect, while cutting temperature increases and its maximum lies near tool tip on the interface of cutting chip and cutting edge, and residual stress largely decreases in a small area under workepiece surface and distributes clearly like a spoon. FEM simulation and experimental results are in good agreement.

• Periodical: Materials Science Forum (Volume 723)
• Pages: 343-347
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.723.343
• Online since: June 2012
• Authors: Tao Chen, Su Yan Li, Dong Kai Jia, Hui Sun, Lei Guo
• Keywords: Cutting Speed, Hardened Steel, PCBN Tool, Surface Residual Stress

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