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http://dx.doi.org/10.7735/ksmte.2014.23.1.032

Cryogenic Machining of Open-Cell Silicone Foam  

Hwang, Jihong (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
Cho, Kwang-Hee (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
Park, Min-Soo (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.23, no.1, 2014 , pp. 32-37 More about this Journal
Abstract
Open-cell silicon foam is difficult to cut using conventional machining processes because of its low stiffness. That is, open-cell silicon foam is easily pressed down when the tool is engaged, which makes it difficult to remove the material in the form of chip. This study proposes an advanced method of machining open-cell silicon foam by freezing the material using liquid nitrogen. Furthermore, the machining conditions are optimized to maximize the efficiency of material removal and minimize the usage of liquid nitrogen by conducting experiments under various machining conditions. The results show that open-cell silicone foam products with free surface can be successfully machined by employing the proposed method.
Keywords
Open-cell silicone foam; Cryogenic machining; Optimal machining conditions;
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