[ Technical Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27, No. 5, pp.472-477

ISSN: 2508-5107 (Online)

Print publication date 15 Oct 2018

Received 26 Jul 2018 Revised 28 Aug 2018 Accepted 30 Aug 2018

DOI: https://doi.org/10.7735/ksmte.2018.27.5.472

드릴링 추력을 이용한 드릴의 인프로세스 파손 검출

차예나^a ; 박동삼^b^{, *}

In-Process Detection of Drill Breakage Using Thrust Forces

Ye Na Cha^a ; Dong Sam Park^b^{, *}

aWonju Medical Instruments High School, 1756, Wonmun-ro, Munmak-eup, Wonju, Gangwon-do, 26370, Korea
bDept. of Mech. Eng., Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon 22012, Korea

Correspondence to: ^*Tel.: +82-32-835-8418 Fax: +82-32-835-0793 E-mail address: dspark@inu.ac.kr (Dong Sam Park).

Abstract

To fully automate production processes, a monitoring system is required to detect abnormal phenomena that may occur during a cutting process, such as tool wear, chipping and fracture, excessive chatter, and built-up edge formation. In this study, a system is developed to detect drill breakage in real-time and in-process conditions during drilling. Through a number of preliminary experiments, it was confirmed that the thrust forces could be effectively used to detect drill breakage, and an algorithm for detecting breakage was thus established through signal processing of these thrust forces. The detection algorithm was implemented using LabVIEW on a PC. It is thus confirmed that drill breakages can be detected in-process and in real-time by applying the developed drill breakage detection system to actual NC drilling operations.

Keywords:

Tool monitoring system, Drilling, Drill breakage, Thrust force, In-process

Acknowledgments

이 논문은인천대학교 2016년도자체연구비 지원에의하여 연구 되었음

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