Effect of Chamfered PCBN Tool Edge Geometries on Hard Turning Process

Author:

Chen Tao1,Yan Fu Gang1,Wu Chun Ya2,Pen Hong Min2,Liu Xian Li1

Affiliation:

1. Harbin University of Science and Technology

2. Harbin Institute of Technology

Abstract

By cutting experiments, this paper investigates the effect of various chamfer widths and chamfer angles on cutting force, cutting temperature, and chip morphology when hardened steel GCr15(HRC60+2) is machined with PCBN tools. The research results indicate that with the enlargement of chamfer angle both cutting temperature and main cutting force increase gradually, and especially, radial force increases more significantly. In addition, it is shown that as chamfer width increases both cutting force and cutting temperature rise. The analytical results of chips derived from cutting experiments reveal that chamfer angle being 20º, chips are the thickest and less serrated. Furthermore, chip thickness diminishes gradually with the increment of chamfer width.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference6 articles.

1. J.D. Thiele and S.N. Melkote: Transactions of the ASME, Vol. 122 (2000), p.642.

2. T. Özel: Journal of Material Processing Technology, Vol. 141 (2003), p.284.

3. N. Fang and Q. Wu: International Journal of Machine Tools and Manufacture, Vol. 8 (2005), p.1178.

4. Y.B. Guo and Q. Wen: Transactions of the North American Manufacturing Research Institute of SME-Papers Presented at NAMRC, Vol. 33 (2005), p.469.

5. H.K. Tonshoff, C. Arendt and R.B. Amor: Annals of the CIRP, Vol. 29 (2000), p.547.

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