Browse > Article
http://dx.doi.org/10.14775/ksmpe.2019.18.11.041

Nano-surface Machining Technology of Tungsten Carbide Blade for MLCC Cutting Process  

Kang, Byung-Ook (Dept. of Mechanical Engineering, Gyeongnam National Univ. of Sci. and Tech.)
Shin, Gun-hwi (Division of Scientific Instrumentation, Korea Basic Science Institute)
Kwak, Tae-Soo (Dept. of Mechanical Engineering, Gyeongnam National Univ. of Sci. and Tech.)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.18, no.11, 2019 , pp. 41-46 More about this Journal
Abstract
The purpose of this study is to examine and propose a high quality blade manufacturing method by applying ELID grinding technology to machining the tungsten carbide blade edge for MLCC sheet cutting. In this study, experiments are performed according to the abrasive type of grinding wheel, grinding method and grinding direction using the non-stop continuous dressing ELID grinding technology. By comparing and analyzing the chipping phenomena and surface roughness of both the blade grinding surface and the processed surface, a method for machining the tungsten carbide blade for cutting MLCC sheet is proposed. From the analysis of the surface roughness and chipping phenomena, it is confirmed that the use of diamond abrasive is advantageous for the blade machining. In addition, it succeeds in the machining of $6{\mu}m$ fine blade without any chipping, by using the grinding wheel #4000 with the diamond abrasive.
Keywords
MLCC; Tungsten Carbide; ELID Grinding; Blade Machining; Nano-surface;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Shin, G. H., Kang, B. O. and Kwak, T. S., "Effect of the Elasticity Modulus of the Jig Material on the Blade Edge Shape in the Grinding Process of Sapphire Medical Knife - Part 2 Verification of the Chipping Phenomenon and Elastic Modulus of the Jig Material," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 16, No. 5, pp. 63-68, 2017.   DOI
2 Shin, G. H., Kwak, T. S., Jung M. W., and Kwak, I. S., “Effect of Reference Current and Depth of Cut on Electro-Discharge Energy in Electro-Discharge Truing Process for Metal-Bonded Grinding Wheel,” Journal of the Korean Society for Precision Engineering, Vol. 33, No. 6, pp. 485-490, 2016.   DOI
3 Lee, Y. C., and Shin, G. H., Kwak, T. S., “Deburring Technology of Vacuum Plate for MLCC Lamination Using Magnetic Abrasive Polishing and ELID Process,” Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 3, pp. 149-154, 2015.   DOI
4 Kwak, T. S., “Machining Properties to Nano-Level Mirror Surface Finishing for Fine Grained WC-Co 18% Alloy using Magnetic Polishing Slurry,” Journal of the Korean Ceramic Society, Vol. 46, No. 1, pp. 102-1097, 2009.   DOI
5 Shin, G. H., Lee, D. W. and Kwak, T. S., “Effect of the Elasticity Modulus of Jig Material on Blade Edge Shape in Grinding Process of Sapphire Medical Knife,” Journal of the Korean Society of Manufacturing Process Engineers, Vol. 16, No. 2, pp. 102-107, 2017.   DOI
6 Kwak, J. S. and Kwak, T. S., “Review of Technology Trends for Ceramics Removal-Machining,” Journal of the Korean Society for Precision Engineering, Vol. 30, No. 12, pp. 1227-1235, 2013.   DOI
7 Kim, H. U., Jeong, S. H., Ahn, J. J., Cha, D. H., Lee, D. G., Kim, H. J. and Kim, J. H., “Optimal Grinding Condition of Tungsten Carbide(WC) for Aspheric Glass Lens Using DOE,” Journal of the Korean Society of Manufacturing Process Engineers, Vol. 5, No. 4, pp. 41-45, 2006.
8 Zhang, J. S., Bass, J. D., Taniguchi, T., Goncharov, A. F., Chang, Y. and Jacobsen, S. D., "Elasticity of Cubic Boron Nitride under Ambient Conditions," Journal of Applied Physics, Vol. 109, Issue 6, 2011.
9 Valdez, M. N., Umemoto, K., and Wentzcovitch, R. M., "Elasticity of Diamond at High Pressures and Temperatures," Applied Physics Letters, Vol. 101, Issue 17, 2012.