A6061-T6의 원형포켓 반복가공시 표면거칠기와 진직도에 관한 연구 (A Study on the Surface Roughness and Straightness of A6061-T6 Round Pocket Repeated Processing)

서지정보

· 발행기관 : 한국기계가공학회
· 수록지 정보 : 한국기계가공학회지 / 22권 / 5호 / 47 ~ 53페이지
· 저자명 : 최철웅, 최원식

초록

In this experiment, the dimensional accuracy and roundness of 25 holes were measured during repeated processingusing one circular pocket tool under different cutting conditions, such as various feed rates and spindle rotationspeeds, using A6061-T6 material and TiCN- and TiAlN-coated end-mill tools. The purpose of this analysis is todetermine the optimal cutting conditions. As a result of measuring the surface roughness, it was found that theTiCN-coated tool exhibited the most precise dimensional tolerance at a spindle speed of 2,000 rpm and feed speedof 200 mm/min, which corresponded to an Ra value of 0.4583 µm. Moreover, TiAlN-coated tools showed thetightest dimensional tolerances at a spindle speed of 3,000 rpm and feed rate of 100 mm/min. As a result ofmeasuring the straightness, it was found that the TiCN-coated tool showed the most precise straightness at a spindlespeed of 3,000 rpm and feed speed of 100 mm/min. When the maximum and minimum dimensions of the surfaceroughness of each coating tool were compared, the TiCN tools were found to be more favorable. However, whenthe minimum and maximum dimensions of straightness were compared, the TiAlN tools were found to be morefavorable.

영어초록

In this experiment, the dimensional accuracy and roundness of 25 holes were measured during repeated processingusing one circular pocket tool under different cutting conditions, such as various feed rates and spindle rotationspeeds, using A6061-T6 material and TiCN- and TiAlN-coated end-mill tools. The purpose of this analysis is todetermine the optimal cutting conditions. As a result of measuring the surface roughness, it was found that theTiCN-coated tool exhibited the most precise dimensional tolerance at a spindle speed of 2,000 rpm and feed speedof 200 mm/min, which corresponded to an Ra value of 0.4583 µm. Moreover, TiAlN-coated tools showed thetightest dimensional tolerances at a spindle speed of 3,000 rpm and feed rate of 100 mm/min. As a result ofmeasuring the straightness, it was found that the TiCN-coated tool showed the most precise straightness at a spindlespeed of 3,000 rpm and feed speed of 100 mm/min. When the maximum and minimum dimensions of the surfaceroughness of each coating tool were compared, the TiCN tools were found to be more favorable. However, whenthe minimum and maximum dimensions of straightness were compared, the TiAlN tools were found to be morefavorable.

참고자료

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