Selection of building orientations based on tolerance and shape recognition in Open CASCADE Technology for additive manufacturing

Yizhe Yang; Bingshan Liu; Haochen Li; Xin Li; Xiaodong Liu; Gong Wang

doi:10.1117/12.2645831

30 August 2022 Selection of building orientations based on tolerance and shape recognition in Open CASCADE Technology for additive manufacturing

Yizhe Yang, Bingshan Liu, Haochen Li, Xin Li, Xiaodong Liu, Gong Wang

Author Affiliations +

Proceedings Volume 12309, International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2022); 1230908 (2022) https://doi.org/10.1117/12.2645831
Event: International Conference on Advanced Manufacturing Technology and Manufacturing System (ICAMTMS 2022), 2022, Shijiazhuang, China

Abstract

Additive manufacturing utilizes a layer-by-layer stacking method to process parts, which simplifies the manufacturing process. But the staircase effect has a great impact on the accuracy of surfaces, so it is necessary to select some reasonable building orientations considering different types of features and tolerance requirements. This paper uses the Open CASCADE Technology to identify the tolerance, topological shape, and geometric object in the STEP AP 242 file format and selects a reasonable building orientation set for required model sub-features according to the geometric characteristics of different kinds of topological shapes. The precision value of each building orientation in the set is calculated by tolerance weighting, and the value ranking of each orientation for ensuring surface accuracy is obtained, which can be used as a reference for the subsequent determination of the building orientation. Experiments on 10 models are conducted to verify the effectiveness and rapidity of the proposed method.

Citation Download Citation

Yizhe Yang, Bingshan Liu, Haochen Li, Xin Li, Xiaodong Liu, and Gong Wang "Selection of building orientations based on tolerance and shape recognition in Open CASCADE Technology for additive manufacturing", Proc. SPIE 12309, International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2022), 1230908 (30 August 2022); https://doi.org/10.1117/12.2645831

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