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김재건(Jae Gun Kim),고태조(Tae Jo Ko),김희술(Hee Sul Kim),정병묵(Byoung Muk Chung) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
After the micro turning lathe was developed in the last year by AMR Laboratory in Yeungnam university, a micromilling<br/> machine is developed for micro/meso machining. This machine is integrated with PZT-driven micro-sliders,<br/> micro-linear encoders, aerostatic spindle which has maximum 150,000 rpm. It is applicable to milling and drilling of<br/> micro scale. This paper presents the possibility of micro/meso machining and characteristics of micro end milling process<br/> by using micro machine. A machining of micro parts using 0.2 mm flat end mill was achieved by micro-milling machine.<br/> Experimental results show the machining capability and positional accuracy of this machine is good enough for machining<br/> micro parts.
박성호(Sung Ho Park),김지훈(Ji Hoon Kim),고태조(Tae Jo Ko),김희술(Hee Sul Kim) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.9
The use of cutting fluids has the significant negative effects on the environmental, health, and safety aspects. This paper presents the experimental study for aerosol particle generation characteristics of cutting fluid according to the machining conditions. The rotating speed of workpiece and flow rate of cutting fluid are the most important factors on aerosol particle mean size and number concentration.
정종운,김재건,고태조,김희술,박종권 한국공작기계학회 2004 한국공작기계학회 춘계학술대회논문집 Vol.2004 No.-
Micro/meso cutting is getting more important in the fields of precision machining technology. A micro-turning lathe is one of parts to consist the Micro Factory. It accepts stepwise motion actuators that are used for feeding system instead of the conventional mechanism. It is consisted of two Piezoelectric ceramics; one is for feeding the slider, and the other is for clamping the slider in the guide way of the body. The linearity and positional accuracy of the actuators are good enough for high precision motion. The spindle unit is operated with DC motor on the top of the slider. The motion is communicated with miniaturized linear encoder attached on each side of axis. A mono crystal diamond tool is used for cutting tool. This micro-lathe has been made a machining experiment to see the characteristics of micro-machining.