Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 11 Issue 2
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- Pages.85-94
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- 1994
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
An analysis of cutting process with ultrasonic vibration by ARMA model
자동회귀-이동평균(ARMA) 모델에 의한 초음파 진동 절삭 공정의 해석
Abstract
The cutting mechanism of ultrasonic vibration machining is characterized as two phases, that is, an impact at the cutting edge and a reduction of cutting force due to non-contact interval between tool and workpiece. In this paper, in order to identify cutting dynamics of a system with ultrasonically vibrated cutting tool, an ARMA modeling is performed on experimental cutting force signals which have a dominant effect on cutting dynamics. The aim of this study is, through Dynamic Date System methodology, to find the inherent characteristics of an ultrasonic vibration cutting process by considering natural frequency and damping coefficient. Surface roughness and stability of cutting process under ultrasonic vibration are also considered
Keywords
- Ultrasonic vibration;
- Autoregressive-Moving average model;
- Dynamic data;
- Cutting force;
- Time series;
- Indentification of cutting dynamics;
- Control parameter
- 초음파 진동;
- 자동 회귀-이동 평균 모형;
- 동적 자료;
- 절삭력;
- 시계열;
- 절삭의 동적 거동 규명;
- 제어변수;