Abstract
The cutter posture optimization in five-axis machining is of importance for machining efficiency and quality. In order to achieve a cutter posture with wide strip width, this paper proposes a mechanical equilibrium-based method. When the defined middle point on the cutter is fixed, two contact points are needed and obtained for seeking an equilibrium state of the cutter. After initially positioned on the desired surface, the cutter is firstly stressed by the gravity, then impact on the desired surface. The process repeats until the cutter is in an equilibrium state. The uplift of the cutter is also optimized to avoid excess that caused by the shift of the actual middle point on the error distribution curve. In the implementation, the proposed method distinctly increases the strip width compared with two existing methods.
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