Browse > Article

Machining Characteristics According to the Wheel Wear in Surface Grinding for Structural Ceramics of $Si^3 N_4$  

왕덕현 (경남대학교 기계자동화공학부)
김원일 (경남대학교 기계자동화공학부)
신경오 (경남대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.12, no.4, 2003 , pp. 9-16 More about this Journal
Abstract
In this study, the decision of dressing time for diamond wheel was analyzed by observing with acoustic emission signals and surface roughness, and also obtained the machining characteristics by weibull distribution plot for the values of bending strength. From the experimental study, it was possible to predict the time of re-dressing for the diamond grinding wheel with the analysis of acoustic emission signals and surface roughness values, and following conclusions were obtained. The root-mem-square values of acoustic emission signals were obtained low as the increased of table speed for different abrasive grain size. This is caused by the lack of grinding power which is not able to get rid of all real grinding mass of depth as the table speed is increased. The values of bending strength for ground $Si_3 N_4$ specimens were decreased for gain size of #400 than that of #60, but it was found that the surface roughness values for gain size of #60 were better than that of #400. As compared the shape parameter of weibull distribution plot for the values of bending strength, it was found that the reliability of bending strength for grain size of #60 increased than that of #400.
Keywords
Acoustic Emission; Bending Stress; Weibull Plot; Structural Commies of $Si^3 N_4$;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 An Investigation of Grinding and Wheel Loading Using Acoustic Emission /
[ Dormfeld,D.;Cai,H.G. ] / Trans. of ASME
2 Monitoring of Dressing and Grinding Processing with Acoustic Emission Signals /
[ Inasaki,I. ] / Annals of CIRP
3 A Study on the Grinding Characteristics of Ceramics /
[ Kim,S.C.;Jeong,E.S.;Kim,T.B.;K.Lee,S.E.;So,Y. ] / Trans. of KSMTE   과학기술학회마을
4 In-Process Mesurements of Progressive Variation of Grinding Characteristecs in Constant-Load Heavy Grinding /
[ Matsuo,T.;Tonge,M.;Iwasaki,K. ] / Annals of CIRP
5 Exploratory Investigation of Laser Methods for Grinding Research /
[ Murray,M. ] / Annals of CIRP
6 On the Possibility of Process Monitring in Grinding by Spark Intensity Measurements /
[ Rajmohan,B.;Radhakarishan,V. ] / Trans. of ASME