Prediction of Chip Flow Direction and Cutting Forces in Oblique Machining with Nose Radius Tools

J.A. Arsecularatne1, P. Mathew1, P.L.B. Oxley1
1School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, New South Wales, Australia

Tóm tắt

A method is described for calculating the chip flow direction in terms of the tool cutting edge geometry and the cutting conditions, namely feed and depth of cut. By defining an equivalent cutting edge based on the chip flow direction it is then shown how cutting forces can be predicted given the work material's flow stress and thermal properties. A comparison between experimental results obtained from bar turning tests and predicted values for a wide range of tool geometries and cutting conditions shows good agreement.

Từ khóa


Tài liệu tham khảo

Colwell L. V., 1954, Trans. ASME, 76, 199

10.1299/jsme1958.2.58

Usui E., 1978, Trans. ASME, 100, 229

Usui E., 1978, Trans. ASME, 100, 222

Spaans C. A systematic approach to three-dimensional chip curl, chip breaking and chip control. MR70-241, SME technical paper, 1970.

Spaans C., 1970, Ann. CIRP, 18, 87

van Luttervelt C. A., 1976, Ann. CIRP, 25, 71

Kluft W., 1979, Ann. CIRP, 28, 441

Young H. T., 1987, Proc. Instn Mech. Engrs, Part C, 201, 213

Wang J., Mathew P. Predicting the chip flow direction for nose radius tools under oblique machining conditions. University of New South Wales report 1988/IE/2, 1988.

Wang J., Mathew P. Prediction of chip flow direction and cutting forces in oblique machining with nose radius tools. University of New South Wales report 1988/IE/5, 1988.

Hu R. S., 1986, Proc. Instn Mech. Engrs, Part C, 200, 89

10.1243/PIME_PROC_1982_196_015_02

Mathew P., 1983, A theoretical and experimental investigation of the mechanics of machining

Oxley P. L. B., 1989, The mechanics of machining: an analytical approach to assessing machinability

Young H. T., Int. J. Mach. Tools and Mf.