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이춘만(Choon-Man Lee),노영화(Young-Hwa Roh),박동근(Dong-Kun Park) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
This study is concerned about the development and performance evaluation of a tower type ATC(Automatic Tool Changer). Recently, many studies have been undergoing to reduce working time in field of machine center. Tower type ATC have been developed to reduce the stand-by time by shortening tool exchanging time. The developed system can store more number of tools in small space. In order to evaluate the performance of tower type ATC, feeding speed and noise are measured by a laser interferometer and a noise level meter.
이춘만(Choon Man Lee),신성우(Sung Woo Shin),정종윤(Jong Yun Jung),황영국(Young Kug Hwang),박수현(Su Hyun Park) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
At present, industries and researchers are looking for ways to reduce the use of lubricants because of ecological and economical reasons. Therefore, metal cutting is to move toward dry cutting or semi-dry cutting. This paper presents an investigation into MQL(Minimum Quantity Lubrication) machining with the objective of evaluating the cylindricity for the turning process of SM45C. To reach this goal, several cylindrical-outer-diameter turning experiments are carried out by fluid cutting, MQL cutting and dry cutting. Also, the temperature of the tool-shank and cylindricity of workpiece are measured. It is found from the results of experiments that the cylindricity in MQL cutting is better than the others.