[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 29, No. 2, pp.112-119

ISSN: 2508-5107 (Online)

Print publication date 15 Apr 2020

Received 24 Mar 2020 Revised 10 Apr 2020 Accepted 14 Apr 2020

DOI: https://doi.org/10.7735/ksmte.2020.29.2.112

고경도 소재 가공을 위한 다이아몬드 전착 드릴의 형상 최적화에 관한 연구

최상준^a ; 김재선^a ; 윤재웅^b^{, *}

Design Optimization of Diamond Electro-Deposited Drill for High-Hardness Workpiece Machining

Sang-Joon Choi^a ; Jae-Seon Kim^a ; Jae-Woong Youn^b^{, *}

aDepartment of Mechanical Engineering, Graduate School of Daegu University
bDivision of Mechanical Engineering, Daegu University

Correspondence to: ^*Tel.: +82-53-850-6684 E-mail address: jwyoun@daegu.ac.kr (Jae-Woong Youn).

Abstract

Recently, there has been an increase in the demand for the machining of high-hardness materials using diamond electro-deposition tools. However, a systematic analysis of these tools in terms of machinability has not been performed yet. In this study, a tool design optimization is performed to improve the machinability of diamond electro-deposition drills in drilling SiC ceramic materials. Each drill is analyzed using FEM analysis and the results are compared with the corresponding experimental results. Additionally, the particle drop rate and surface roughness of the machined surface are analyzed for each drill. Consequently, we discover that the most important aspect in drilling using a diamond electro-deposition drill is the proper discharge of the machined chip. Furthermore, we determine the optimal drill shape for the improvement of machinability.

Keywords:

Electro-deposited drill, Drill shape, FEM analysis, High-Hardness workpiece, Chip flow

Acknowledgments

이 논문은 2019학년도 대구대학교 학술연구비 지원에 의한 논문임.

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