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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 28, No. 1, pp.1-8

ISSN: 2508-5107 (Online)

Print publication date 15 Feb 2019

Received 14 Dec 2018 Revised 13 Jan 2019 Accepted 14 Jan 2019

DOI: https://doi.org/10.7735/ksmte.2019.28.1.1

순수 2차원 절삭에서 속도화상입자계측(PIV)을 이용한 주변형 영역 내 변형률 분포 고찰

이주호^a

; 이은호^b ; 황지홍^b^{, *}

Investigating the Strain Distribution in the Primary Deformation Zone in 2-D Orthogonal Machining Using Particle Image Velocimetry

Joo Ho Lee^a

; Eunho Lee^b ; Jihong Hwang^b^{, *}

aOBPeng Corporation, 6F, Nara-Building, 5, Seongnam-daero 1390beon-gil, Sujeong-gu, Seongnam, Gyeonggi-do, 13119, Korea
bDepartment of Mechanical Design and Manufacturing Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea

Correspondence to: ^*Tel.: +82-2-970-6396 Fax: +82-2-976-5173 E-mail address: hwangjh@seoultech.ac.kr (Jihong Hwang).

Abstract

In the present study, a system for direct observation and quantitative analysis of the chip formation process in 2-D orthogonal machining was developed. The system consists of an optical system for high-speed photographing of the shear zone at high temporal and spatial resolution and an image analysis system for calculating the strain rate and strain distributions from the acquired images using particle image velocimetry. The effects of cutting conditions, such as cutting edge radius and depth of cut on the deformation behavior in the shear zone, were investigated by comparing the strain rate and strain distributions obtained using the developed system. The results indicate that the developed system can be utilized to enhance the understanding of the mechanics of machining and the development and validation of machining models.

Keywords:

2-D orthogonal machining, Strain distribution, Shear zone, High-speed photographing, Particle image velocimetry (PIV)

Acknowledgments

이 연구는 서울과학기술대학교 교내 학술연구비 지원으로 수행되었습니다.

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