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Computer Aided Geometric Design
Multi-point tool positioning strategy for 5-axis machining of sculptured surfaces
Computer Aided Geometric Design
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Computer-Aided Design
Tool path generation based on BCELTP for maximizing machining strip width
ICIRA'10 Proceedings of the Third international conference on Intelligent robotics and applications - Volume Part II
5-axis flank milling free-form surfaces considering constraints
Computer-Aided Design
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Computer-Aided Design
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For 5-axis machining with single point contact, this paper proposes a method to calculate second order approximation of the tool envelope surface by using only one tool position. As we known, the true machining errors are deviations between designed surface and tool envelope surface. But it is impossible to determine the whole shape of the tool envelope surface before all tool positions are obtained. Hence, it is difficult to position the tool individually and consider true errors at the same time. Basic Curvature Equations of Locally Tool Positioning (BCELTP) are presented to solve this problem in some degree. By using them under some special conditions, given one tool position, the local shape (second order approximation) of the tool envelope surface can be calculated precisely at the corresponding cutter contact point. These equations make it convenient to adjust the tool position individually until true errors are reduced in some degree. So, they are useful for optimizing tool positions locally. Finally, some examples are given to verify the correctness and practicability of theory.