Optimal slope cutting algorithm for EPS free-form formwork manufacturing

Harim Kim; Heejae Ahn; Chanwoo Kim; Dongyoun Lee; Taehoon Kim; Yeonho Ko; Hunhee Cho

doi:10.1016/j.autcon.2022.104527

Optimal slope cutting algorithm for EPS free-form formwork manufacturing

Harim Kim, Heejae Ahn, Chanwoo Kim, Dongyoun Lee, Taehoon Kim, Yeonho Ko, Hunhee Cho

School of Civil, Environmental and Architectural Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The construction of free-form buildings has recently emerged as a trend in the construction industry. The sloped-laminated object manufacturing (S-LOM) method can manufacture free-form formwork rapidly and cost-effectively. However, the S-LOM method has low precision due to the cutting error. This study proposes the slope-optimized laser cutting (SOLC), which can reduce the cutting error by optimizing the cutting conditions depending on cutting angle change. A case study was conducted to verify the precision improvement of the SOLC, and the results showed that the SOLC reduced the maximum error by 35.79%, average error by 35.42%, and standard deviation by 33.21%, compared to the existing cutting method. However, the SOLC is less efficient in reducing errors when the cutting angle is large, and it cannot be applied to various material conditions. In future studies, more detailed experiments on various material conditions and cutting angles should be conducted to improve the SOLC's precision.

Original language	English
Article number	104527
Journal	Automation in Construction
Volume	143
DOIs	https://doi.org/10.1016/j.autcon.2022.104527
Publication status	Published - 2022 Nov

Bibliographical note

Funding Information:
This work was supported by the Urban Architecture Research Program funded by the Ministry of Land, Infrastructure and Transport of the Korean Government (No. 21AUDP-B121595-06 ). It was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. NRF-2021R1A5A1032433 ).

Publisher Copyright:
© 2022

Keywords

Free-form formwork
Precision analysis
Slope-optimized laser cutting
Sloped-laminated object manufacturing
Three-dimensional printing

ASJC Scopus subject areas

Control and Systems Engineering
Civil and Structural Engineering
Building and Construction

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10.1016/j.autcon.2022.104527

Cite this

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title = "Optimal slope cutting algorithm for EPS free-form formwork manufacturing",

abstract = "The construction of free-form buildings has recently emerged as a trend in the construction industry. The sloped-laminated object manufacturing (S-LOM) method can manufacture free-form formwork rapidly and cost-effectively. However, the S-LOM method has low precision due to the cutting error. This study proposes the slope-optimized laser cutting (SOLC), which can reduce the cutting error by optimizing the cutting conditions depending on cutting angle change. A case study was conducted to verify the precision improvement of the SOLC, and the results showed that the SOLC reduced the maximum error by 35.79%, average error by 35.42%, and standard deviation by 33.21%, compared to the existing cutting method. However, the SOLC is less efficient in reducing errors when the cutting angle is large, and it cannot be applied to various material conditions. In future studies, more detailed experiments on various material conditions and cutting angles should be conducted to improve the SOLC's precision.",

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note = "Funding Information: This work was supported by the Urban Architecture Research Program funded by the Ministry of Land, Infrastructure and Transport of the Korean Government (No. 21AUDP-B121595-06 ). It was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. NRF-2021R1A5A1032433 ). Publisher Copyright: {\textcopyright} 2022",

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doi = "10.1016/j.autcon.2022.104527",

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AU - Lee, Dongyoun

AU - Kim, Taehoon

AU - Ko, Yeonho

AU - Cho, Hunhee

N1 - Funding Information: This work was supported by the Urban Architecture Research Program funded by the Ministry of Land, Infrastructure and Transport of the Korean Government (No. 21AUDP-B121595-06 ). It was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. NRF-2021R1A5A1032433 ). Publisher Copyright: © 2022

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Y1 - 2022/11

N2 - The construction of free-form buildings has recently emerged as a trend in the construction industry. The sloped-laminated object manufacturing (S-LOM) method can manufacture free-form formwork rapidly and cost-effectively. However, the S-LOM method has low precision due to the cutting error. This study proposes the slope-optimized laser cutting (SOLC), which can reduce the cutting error by optimizing the cutting conditions depending on cutting angle change. A case study was conducted to verify the precision improvement of the SOLC, and the results showed that the SOLC reduced the maximum error by 35.79%, average error by 35.42%, and standard deviation by 33.21%, compared to the existing cutting method. However, the SOLC is less efficient in reducing errors when the cutting angle is large, and it cannot be applied to various material conditions. In future studies, more detailed experiments on various material conditions and cutting angles should be conducted to improve the SOLC's precision.

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Optimal slope cutting algorithm for EPS free-form formwork manufacturing

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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