surface smoothing
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Author(s):  
Le Hac Huong Thu ◽  
Takashi Matsumae ◽  
Yuichi Kurashima ◽  
Hideki Takagi ◽  
Eiji Higurashi

Author(s):  
Antonio Bacciaglia ◽  
Alessandro Ceruti ◽  
Alfredo Liverani

AbstractThe topology optimization methodology is widely applied in industrial engineering to design lightweight and efficient components. Despite that, many techniques based on structural optimization return a digital model that is far from being directly manufactured, mainly because of surface noise given by spikes and peaks on the component. For this reason, mesh post-processing is needed. Surface smoothing is one of the numerical procedures that can be applied to a triangulated mesh file to return a more appealing geometry. In literature, there are many smoothing algorithms available, but especially those based on the modification of vertex position suffer from high mesh shrinkage and loss of important geometry features like holes and surface planarity. For these reasons, an improved vertex-based algorithm based on Vollmer’s surface smoothing has been developed and introduced in this work along with two case studies included to evaluate its performances compared with existent algorithms. The innovative approach herein developed contains some sub-routines to mitigate the issues of common algorithms, and confirms to be efficient and useful in a real-life industrial context. Thanks to the developed functions able to recognize the geometry feature to be frozen during the smoothing process, the user’s intervention is not required to guide the procedure to get proper results.


2021 ◽  
Vol 130 ◽  
pp. 105842
Author(s):  
Nan Gao ◽  
Yuan Gao ◽  
Meng Chen ◽  
Hongtao Xu ◽  
Zhongying Xue ◽  
...  

2021 ◽  
Vol 1037 ◽  
pp. 473-478
Author(s):  
Sergey N. Khimukhin ◽  
Kseniia P. Eremina ◽  
Sergey V. Nikolenko

The article presents the research results on obtaining coatings on steels 1030 and AISI 420 by the method of electrospark deposition and subsequent smoothing by means of ultrasonic surface plastic deformation (USPD). Intermetallic alloys consisting mainly of NiAl and Ni3Al phases were used as materials for obtaining coatings. It was found that the coatings consist of columnar crystallites of complex composition and have high plastic properties. To ensure the minimum parameters of the surface roughness of the obtained coatings, it is necessary to carry out 3-6 times of ultrasonic surface treatment.


2021 ◽  
Vol 129 ◽  
pp. 105780
Author(s):  
Hiromasa Ohmi ◽  
Kenta Kimoto ◽  
Toshimitsu Nomura ◽  
Hiroaki Kakiuchi ◽  
Kiyoshi Yasutake

Author(s):  
Miloš Jakubčin ◽  
Peter Kollár ◽  
Zuzana Birčáková ◽  
Ján Füzer ◽  
Mária Fáberová ◽  
...  

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