Optimization of Cutting Edge Truncation Depth for Ultrasonically Assisted Grinding to Finish Mirror Surface


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High precision mold grinding technique to obtain mirror surface is required which realizes minimization or omission of final polishing by skilled workers. In the previous reports, ultrasonic diamond grinding experiments were carried out to confirm ultrasonic oscillation effect for die steel face grinding. Smooth and glossy surfaces were obtained successfully and little abrasive worn out was found. In the above techniques require cutting edge truncation because the cutting edge shape of a tool affects the ground surface resulting from transcription of cutting edge. This paper describes optimization techniques for the cutting edge truncation of diamond electroplated tools which are used in ultrasonically assisted grinding. Experiments were carried out to confirm truncation effects on the ground surface and grinding force. It was confirmed that roughness was proportional to inverse of thrust force. Minimum roughness in grinding conditions were estimated from the proportional diagrams. The minimum roughness shows limit of roughness on an each grinding condition.



Advanced Materials Research (Volumes 76-78)

Edited by:

Han Huang, Liangchi Zhang, Jun Wang, Zhengyi Jiang, Libo Zhou, Xipeng Xu and Tsunemoto Kuriyagawa




K. Hara et al., "Optimization of Cutting Edge Truncation Depth for Ultrasonically Assisted Grinding to Finish Mirror Surface", Advanced Materials Research, Vols. 76-78, pp. 88-93, 2009

Online since:

June 2009




[1] S. Shimada, H. Tanaka, M. Higuchi, T. Yamaguchi, S. Honda and K. Obata: Thermo-Chemical Mechanism of Diamond Tool in Machining of Ferrous Metals, Annals of CIRP. 53 (2004), p.57.

DOI: https://doi.org/10.1016/s0007-8506(07)60644-1

[2] K. Hara, H. Isobe and A. Kyusojin: Effects of Cutting Edge Truncation on Ultrasonically Assisted Grinding, International Symposium of Advanced Abrasive Technology 2008, Awaji, Japan, p.368 Figure 9 Relationships between thrust FT and roughness Rz.

DOI: https://doi.org/10.4028/www.scientific.net/kem.389-390.368

2 4 6 8 10 12.

[1] [2] [3] [4] [5] Inverse of Thrust 1/FT N -1 Roughness Rz µm Experimental value Approximate line (a) results of different wheels #325(2) Rz = 0. 40FT -1 + 0. 07 #100, h =0. 2µm Rz = 0. 17FT -1 + 0. 20 #325(1) Rz = 0. 097FT -1 + 0. 13.

1 2 3.

[1] [2] Inverse of Thrust 1/FT N -1 Roughness Rz µm h = 0. 1µm Rz = 0. 69 FT -1 + 0. 08 h = 0. 2µm Rz = 0. 17FT -1 + 0. 20 h = 0. 5µm Rz = 0. 41 FT -1+ 0. 30 (b) results of #100 wheel h = 0. 3µm Rz = 0. 24FT -1 + 0. 25.

DOI: https://doi.org/10.1109/iit.2007.4430487

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