Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Analysis of Surface Characteristics in the $Si_3N_4$/h-BN Ceramic by IED Ultra-Precision Lapping

IED 초정밀 래핑을 통한 $Si_3N_4$/h-BN의 표면특성 분석

  • 황성철 (인하대학교 기계공학과 대학원) ;
  • 이정택 (인하대학교 기계공학과 대학원) ;
  • 이은상 (인하대학교 기계공학과) ;
  • 조명우 (인하대학교 기계공학과) ;
  • 조원승 (인하대학교 신소재공학부)
  • Published : 2008.07.01
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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

References

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