CAD-integrated topology optimization method with dynamic extrusion feature evolution for multi-axis machining

Deng, Hao; Vulimiri, Praveen S.; To, Albert C.

doi:10.1016/j.cma.2021.114456

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…They modeled the milling tool by two hemispheres and two cylinders. Deng et al (2022) developed a CAD-supported form of topology optimization using the level set method considering millability. Their main idea is based on a projection method of structures composed of multiple CAD primitives to take into account multi-axis machining and possible subsequent application in CAD software.…”

Section: Related Workmentioning

confidence: 99%

Level-set-based topology optimization of threedimensional structures considering the manufacturing process with realistic milling tools

Colling,

Schumacher,

Mecking

2023

Preprint

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In this work, we develop an approach for the level set based topology optimization of millable 3D structures. We focus on the 3-axis machining with realistic formed milling tools. The basis of the method lies in the identification of surface areas that cannot be reached by a given milling tool during optimization. For this purpose, we present an interpolation method that identifies these areas by an interpolation of the level set function along the outer contours of realistic milling tools, considering available machining directions. To minimize inaccessible regions, we define a potential field whose values decrease linearly into the outer normal direction of the structure. The inaccessible regions are pushed outward by minimizing their respective potential and therefore become accessible. Manufacturability is integrated into the optimization problem as an explicit constraint.

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Section: Related Workmentioning

confidence: 99%

Level-set-based topology optimization of threedimensional structures considering the manufacturing process with realistic milling tools

Colling,

Schumacher,

Mecking

2023

Preprint

View full text Add to dashboard Cite

show abstract

Level-set-based topology optimization of threedimensional structures considering the manufacturing process with realistic milling tools

Colling,

Schumacher,

Mecking

2024

Struct Multidisc Optim

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In this work, we develop an approach for the level set based topology optimization of millable 3D structures. We focus on the 3-axis machining with realistic formed milling tools. The basis of the method lies in the identification of surface areas that cannot be reached by a given milling tool during optimization. For this purpose, we present an interpolation method that identifies these areas by an interpolation of the level set function along the outer contours of realistic milling tools, considering available machining directions. To minimize inaccessible surfaces, we define a potential field whose values decrease linearly into the outer normal direction of the structure. The inaccessible boundaries are pushed outward by minimizing their respective potential and therefore become accessible. Manufacturability is integrated into the optimization problem as an explicit constraint.

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Deep learning-based topology optimization for multi-axis machining

Guo,

Liu,

et al. 2025

Applied Mathematical Modelling

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CAD-integrated topology optimization method with dynamic extrusion feature evolution for multi-axis machining

Cited by 7 publications

References 30 publications

Level-set-based topology optimization of threedimensional structures considering the manufacturing process with realistic milling tools

Level-set-based topology optimization of threedimensional structures considering the manufacturing process with realistic milling tools

Level-set-based topology optimization of threedimensional structures considering the manufacturing process with realistic milling tools

Deep learning-based topology optimization for multi-axis machining

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