日本金属学会誌

J. Japan Inst. Metals, Vol. 38, No. 7 (1974),
pp. 615-620

Some Photoelastic Considerations on Orthogonal Cutting of Aluminium

Shigeo Zaima1, Yasuo Suzuki2 and Masao Yamashita3

1Department of Mechanical Science, Faculty of Engineering, Shizuoka University, Hamamatsu
2Postgraduate Course, Shizuoka University, Hamamatsu
3Toyokawa Factory, Hitachi Ltd., Toyokawa

Abstract:

In this paper, using epoxy resin plates for an orthogonal cutting model similar to orthogonal aluminium cutting, the stress distribution in the specimen in the vicinity of tool tip is pursued by changing the factors corresponding to the cutting conditions. As a whole, in this experiment, σ x, i.e. the stress in the x-direction corresponding to the cutting direction, is compression in the front of the tool tip and is tension in the rear of the tool tip; σ y, i.e. the stress in the direction perpendicular to the x-direction, is compression in the whole area. When the rake angle of the tool is small, σ x shows a large compressive force and σ y distributed as compression on the chip side increases. In the case of a round nose tool tip, both σ x and σ y increase to the compression side just in front of the tool tip. When the radial force increases in comparison with the principal force, the compression σ x in the front of the tool tip increases and the tension σ x in the rear of the tool tip decreases.


(Received 1974/01/21)

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