Elliptical Vibration Cutting of Hardened Steel with Large Nose Radius Single Crystal Diamond Tool
Yilong Wang* and Eiji Shamoto**
*Makino Milling Machine Co. Ltd., 4023 Nakatsu, Aikawa-Machi, Aiko-Gun, Kanagawa 243-0303, Japan
**Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
It has been verified that ultra-precision diamond machining of hardened steel can be realized by applying the elliptical vibration cutting process. This innovative machining technology enables direct machining of steel dies and molds with a single crystal diamond tool and makes the indispensable nickel-plating step in the conventional diamond machining process unnecessary. This not only increases mold tool life, but also reduces the machining cost and cycle time. Therefore, elliptical vibration cutting has been considered as a very promising manufacturing technology for high precision die and mold machining. However, progress in elliptical vibration cutting has been hampered by bottlenecks in machining of large-size steel workpieces owing to the low machining efficiency. This study proposed an efficient machining method, elliptical vibration cutting with a large nose radius single crystal diamond tool. Experimental findings revealed that the proposed machining method had great potential to realize efficient ultra-precision diamond machining of hardened steel. However, it was found that the ploughing phenomenon affected the finished surface quality significantly. To minimize the ploughing effect an analytical model was developed. This model enabled minimization of the ploughing effect by optimizing the machining conditions. Finally, the analytical model was qualitatively validated with a series of plane cutting experiments and the experimental results demonstrated good agreement with the analytical model.
-  T. Altan, B. Lilly, and Y. C. Yen, “Manufacturing of Dies and Molds,” CIRP Annals – Manufacturing Technology, Vol.50, Issure 2, pp. 404-422, 2001.
-  S.Watanabe, “Optimization of Design and Production Processes of Dies and Molds in Which CAD/CAM the Core Technology,” Int. J. of Automation Technology, Vol.2, No.6, pp. 472-478, 2008.
-  T. Altan, B. W. Lilly, J. P. Kruth, W. König, H. K. Tönshoff, C. A. Luttervelt van, and A. B. Khairy, “Advanced Techniques for Die and Mold Manufacturing,” CIRP Annals – Manufacturing Technology, Vol.42, Issue 2, pp. 707-716, 1993.
-  J. Vivancos, C. J. Luis, L. Costa, and J. A. Ortiz, “Optimal Machining Parameters Selection in High Speed Milling of Hardened Steels for Injection Moulds,” J. of Materials Processing Technology, Vol.155-156, pp. 1505-1512, 2004.
-  H. Iwabe and K. Enta, “Tool Life of Small Diameter Ball End Mill for High Speed Milling of Hardened Steel,” Int. J. of Automation Technology, Vol.2, No.6, pp. 425-430, 2008.
-  P. Krajnik and J. Kopac, “Modern machining of die and mold tools,” J. of Materials Processing Technology, Vol.157-158, pp. 543-552, 2004.
-  A. T. Ozyılmaz, G. Kardas, M. Erbil, and B. Yazıcı, “The Corrosion Performance of Polyaniline on Nickel Plated Mild Steel,” Applied Surface Science, Vol.242, Issues 1-2, pp. 97-106, 2005.
-  A. Shinozaki and Y. Namba, “Diamond Tool Wear in the Ultra-Precision Cutting of Large Electroless Nickel Coated Molding Dies,” Int. J. of Automation Technology, Vol.5, No.3, pp. 283-288, 2011.
-  A. Pramanik, K. S. Neo, M. Rahman, X. P. Li, M. Sawa, and Y. Maeda, “Cutting performance of diamond tools during ultraprecision turning of electroless-nickel plated die materials,” J. of Materials Processing Technology, Vol.140, Issues 1-3, pp. 308-313, 2003.
-  E. Shamoto and T. Moriwaki, “Ultraprecision diamond cutting of hardened steel by applying elliptical vibration cutting,” CIRP Annals – Manufacturing Technology, Vol.48, Issue 1, pp. 441-444, 1999.
-  Y. Wang, N. Suzuki, E. Shamoto, and Q. Zhao, “Investigation of Tool Wear Suppression in Ultra-precision Diamond Machining of Hardened Steel,” Precision Engineering, Vol.35, Issue 4, pp. 677-685, 2011.
-  N. Suzuki, H. Yokoi, and E. Shamoto, “Micro/nano Sculpturing of Hardened Steel by Controlling Vibration Amplitude in Elliptical Vibration Cutting,” Precision Engineering, Vol.35, Issue 1, pp. 44-50, 2011.
-  E. Shamoto, N. Suzuki, and R. Hino, “Analysis of 3D elliptical vibration cutting with thin shear plane model,” CIRP Annals – Manufacturing Technology, Vol.57, No.1, pp. 57-60, 2008.
-  S. Amini, E. Shamoto, N. Suzuki, and M. J. Nategh, “FE Analysis of One-Directional and Elliptical Vibration Cutting Processes,” Int. J. of Automation Technology, Vol.4, No.3, pp. 252-258, 2010.
-  M. Malekian, M. G. Mostofa, S. S. Park, and M. B. G. Jun, “Modeling of minimum uncut chip thickness in micro machining of aluminum,” J. of Materials Processing Technology, Vol.212, Issue 3, pp. 553-559, 2012.
-  Z. J. Yuan, M. Zhou, and S. Dong, “Effect of diamond tool sharpness on minimum cutting thickness and cutting surface integrity in ultraprecision machining,” J. of Materials Processing Technology, Vol.62, Issue 4, pp. 327-330, 1996.
-  X. Liu, R. E. DeVor, and S. G. Kapoor, “An Analytical Model for the Prediction of Minimum Chip Thickness in Micromachining,” J. of Manufacturing Science and Engineering, Trans. of the ASME, Vol.128, pp. 474-481, 2006.
-  S. Shimada, N. Ikawa, H. Tanaka, G. Ohmori, J. Uchikoshi, and H. Yoshinaga, “Feasibility Study on Ultimate Accuracy in Microcutting Using Molecular Dynamics Simulation,” CIRP Annals – Manufacturing Technology, Vol.42, Issue 1, pp. 91-94, 1993.
-  M. P. Vogler, R. E. DeVor, and S. G. Kapoor, “On the Modeling and Analysis of Machining Performance in Micro-Endmilling, Part I: Surface Generation,” J. of Manufacturing Science and Engineering, Trans. of the ASME, Vol.126, pp. 685-694, 2004.
-  B. Denkena, J. Köhler, R. Meyer, and J. Stiffe, “Modification of the Tool-Workpiece Contact Conditions to Influence the ToolWear and Workpiece Loading During Hard Turning,” Int. J. of Automation Technology, Vol.5, No.3, pp. 353-261, 2011.
-  J. Yan, Z. Zhang, and T. Kuriyagawa, “Effect of Nanoparticle Lubrication in Diamond Turning of Reaction-Bonded SiC,” Int. J. of Automation Technology, Vol.5, No.3, pp. 307-312, 2011.