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Analysis of Surface Characteristics in the $Si_3N_4$/h-BN Ceramic by IED Ultra-Precision Lapping  

Hwang, Sung-Chul (인하대학교 기계공학과 대학원)
Lee, Jung-Taik (인하대학교 기계공학과 대학원)
Lee, Eun-Sang (인하대학교 기계공학과)
Cho, Myeong-Woo (인하대학교 기계공학과)
Cho, Won-Seung (인하대학교 신소재공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.25, no.7, 2008 , pp. 47-54 More about this Journal
Abstract
Recently, application of ceramics has increased gradually due to excellent mechanical properties. Si3n4-BN ceramic which is one of ceramics is very hard and has superior resistance against volatile temperature and wear. However, extremely high hardness of the $Si_3N_4-BN$ ceramic makes conventional machining very difficult. Therefore, the use of machinable ceramic has been in a poor because of difficult industrial processes in spite of many advantages. And so new technology being called IED(In-process electrolytic dressing) was introduced to solve this problem. The aim of this study is to determine the machining characteristics in terms of pressurized weight to the workpiece and the influence with h-BN content using IED lapping system. Also, Acoustic Emission (AE) is used for the monitoring of surface characteristics.
Keywords
In-Process Electrolytic Dressing (IED); Machinable Ceramic; h-BN; Ultra-precision Lapping; Acoustic Emission;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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