Work

Single start end tool path generation for arbitrary porous surfaces

Year: 2024

Type: article

Abstract: The CNC machining of non-zero genus surfaces in B-rep models has become a prevalent challenge in modern manufacturing. The computational complexity inherent in generating tool paths for such geometries remains a significant hurdle. In this study, an efficient path planning algorithm tailored for porous structures of this nature is presented. Initially, we create a parametric grid using the adaptive iso-scallop height method and subsequently utilize a marching cells algorithm to construct a cell grid capable of preserving arbitrary boundaries. Based on the graph structure naturally induced by marching cells, we employ a designated weighting method to establish a minimum spanning tree, upon which a path with a singular start and end point is generated. We conduct various experiments on examples from industrial scenarios as well as synthetic examples. The results show the superior performance and effectiveness of our method concerning scallop height limits, sharp turns, and structural stability.

Source: Journal of Manufacturing Processes

DOI: 10.1016/j.jmapro.2024.10.050

Authors: Li-Yong Shen, Bowen Lyu, Hong-Yu Ma, Shuo-Peng Chen

Institution: University of Chinese Academy of Sciences

Language: English

Topic: Advanced Numerical Analysis Techniques

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,300

Funders: National Natural Science Foundation of China, National Key Research and Development Program of China, Fundamental Research Funds for the Central Universities