The rake γ and inclination λ of the primary cutting edge are the most important geometric parameters of tools, determining the cutting force. These angles are interrelated: changing λ, for example, also changes γ.The dependence of the primary component P{sub}z of the cutting force on each of these angles has been studied in detail [1], but without taking account of the pair interaction [γλ], as it is called in experiment-planning theory. In the general case, when γ ≠ 0 or λ ≠ 0, neglecting this factor leads to significant error in determining the cutting force. According to cutting theory, γ is related to the direction of chip departure at the front surface. Since the angle η of chip departure depends on λ, γ and λ may be related through the cutting angle δ, the angle between the resultant cutting-rate vector and the direction of chip departure.
展开▼
