Quick segmentation for complex curved surface with local geometric feature based on IGES and Open CASCADE

Wang, Fuji; Ma, Jian-wei; Xu, Qiang; Jia, Zhenyuan; Yang, Yan-yu

doi:10.1016/j.advengsoft.2015.04.010

Cited by 11 publications

(2 citation statements)

References 18 publications

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“…The push-pull direct modeling method presented previously has been implemented using C++ on top of the geometric modeling kernel Open CASCADE 7.0 [28]. The graphical user interface module (Fig.…”

Section: Methodsmentioning

confidence: 99%

Push-pull direct modeling of solid CAD models

Zou

Feng

2019

Advances in Engineering Software

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Direct modeling is a very recent CAD modeling paradigm featuring direct, intuitive push-pull interactions with the geometry of the model to much increase model editing flexibility. The major issue for push-pull direct modeling is the possible inconsistency between the altered geometry of the model and its unchanged topology. The challenge of resolving the geometry-topology inconsistency lies in ensuring that the resulting model remains as a valid solid model and that the model shape follows a continuous change pattern. Although push-pull direct modeling has been implemented in several CAD software packages, robustness towards generating valid modeling results and continuous shape changes still remains an open issue. This paper proposes a systematic method to handle the resolution of any possible inconsistent situation. The method formulates the continuous shape change requirement as successive Boolean operations on the model volume, thereby guaranteeing valid solid models and continuous shape changes. Further, this formulation allows an easy implementation of push-pull direct modeling using existing CAD research and engineering results. In order to show the effectiveness of the proposed method, a software prototype is developed and the modeling results are compared with those of five leading CAD software packages.

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Section: Methodsmentioning

confidence: 99%

Push-pull direct modeling of solid CAD models

Zou

Feng

2019

Advances in Engineering Software

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“…BAGHERZADEH [7] introduced an offline robot programming system based on Python and Open Cascade library, which is used to automatically generate the trajectory of the printer powder bed cleaning robot. Wang et al [8] developed a fast model segmentation system for complex surfaces with local geometric features based on the Initial Graphics Exchange Specification (IGES) and OCC platform. Wang et al [9] proposed a 3D casting process CAD system for steel castings based on neutral STEP files based on OCC.…”

Section: Introductionmentioning

confidence: 99%

Development and application of parametric design system for solid end mills based on Open CASCADE

Zhi¹,

Yue

Liu³

et al. 2023

Preprint

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The traditional commercial CAD software is well developed and powerful, and has been widely used in the design of integral end mills. With the development of tool design towards system integration, designers put forward the requirements of specialization and lightweight for CAD software. The secondary development of CAD software has become the main development direction, which can realize the integration of CAD, CAM and CAE software. However, due to factors such as kernel and interface, the effect of this integration is limited and the secondary development can no longer meet the current needs of rapid and accurate tool design. Therefore, the development of an independent CAD software is more conducive to the integration of tool design systems. In order to build a lightweight and easy integrated cutting tool CAD software, this paper implements the parametric design of solid end mill based on Open CASCADE. Using Python as the underlying language and Python OCC modeling interface and model visualization function, the parametric design system of solid end mill is established. The system can quickly and accurately generate data files, 2D graphics and 3D models conforming to ISO13399 standard, and realize the cloud storage function of model data. The generated tool model data can be used for finite element simulation of cutting process, NC programming and connection with tool manufacturing module. Based on the established system, the centroid optimization of the imbalance characteristics of the variable pitch and helix solid end mill was carried out, and the dynamic balance of this type of cutter was improved. The establishment of the system provides a reference value for the development of other types of cutting tool parametric design systems.

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