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DBB를 이용한 3축 공작기계의 운동정밀도 측정 및 오차분석
김태한(Tae-han Kim),정윤교(Youn-gyo Jung),고해주(Hai-ju Ko) 한국생산제조학회 2005 한국공작기계학회 추계학술대회논문집 Vol.2005 No.-
In present, the DBB(Double ball bar) measurement system which measure the motion error of multi-axis Machinine Too1s was in the limelight of machine tools industary. This DBB measurement system was more easier to using and more complexible to apply than the other Measure system(Grid encoder, Laser measurement system, Direct test). DBB measurement system will be secured reliability by The direct cutting test which is tested by machining the workpiece.
오민석,원종식,정윤교 창원대학교 공작기계기술연구센터 1999 연구업적집 Vol.1 No.1
This paper investigates the feasibility of using acoustic emission signal analysis for the detection of built-up edge during machining. Experiments were conducted on a CNC-lathe using conventional carbide insert tools under various cutting conditions. The cutting forces were also measured for comparisons. Experimental evidence is presented which indicates that the presence of a built-up edge can significantly affect the generation of acoustic emission in metal cutting. It is shown that under conditions in which a built-up edge is generated, the variation of AErms signal with cutting speed can be quite different from the generally accepted linear, monotonic increase as previously reported. The feasibility of utilizing AErms in built-up edge sensing is suggested.