임계 런아웃이 표면 거칠기와 요철의 평균 간격에 미치는 영향
Abstract
The runout of the end mill with two teeth affects the machined micro profile during side milling. In this research, the influence of critical runout on the surface roughness and mean width of profile elements is studied using a theoretical model, geometrical simulation, and experiment. The surface roughness values obtained using the theoretical model and via geometrical simulation were similar. However, they were lower than the value obtained experimentally because of the cutting mechanism. The average width of the profile element is equal to the feed per tooth when the runout is lower than the average critical runout; otherwise, it is double. Generally, runout increases the surface roughness. However, it does not affect the roughness if it is greater than the maximum critical runout.
Keywords:
Critical runout, Surface roughness, Mean width of profile elements, Side milling, MachiningAcknowledgments
이 연구는 2017년도 산업핵심기술개발사업(과제번호 1004855)의 연구비 지원에 의하여 연구되었습니다.
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Professor in the School of Mechanical and Aerospace Engineering, Gyeongsang National University.His research interest is smart manufacturing.
E-mail: sujinkim@gnu.ac.kr
Researcher of APCS Technology Center, Gyeongbuk Research Institute of Vehicle Embedded Technology.
E-mail: dhkim@givet.re.kr