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Design Technology of High Speed and Precision Machining Center  

Kim, Bup-Min (Doosan Infracore Machine tools & FA BG)
Choi, Won-Sun (Doosan Infracore Machine tools & FA BG)
Ha, Jae-Young (Doosan Infracore Machine tools & FA BG)
Kim, Tae-Hyoung (Doosan Infracore Machine tools & FA BG)
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Abstract
In order to manufacture precision parts which are used for IT and BT Industry by machining, users need higher speed & precision machining center. So, for development of this kind of machine, we designed gantry type machining center which is piling of 3 axes on one moving body and the 2-axis rotary table is fixed on the base. It is applied linear motor that is instead of ball-screw and servo-motor combination and 50,000 rpm high-speed spindle. Composite material structure called mineral casting or resin concrete is applied also. This paper presents design technology and evaluated results of high speed and precision machining center.
Keywords
High Speed Machining Center; Linear Motor; Direct Drive; Mineral Casting;
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