Vol. 52 No. 1 (2015)   New Products & Technologies
Technical Papers

Latest technologies of MVR-Eχ 5-face Machining Center for Realizing High-Precision Cutting

KENJI KURA
KEIICHI NORIYAMA
HIROYASU ARUGA
TAKAYUKI KUME
KOJI IWATA
SHINGO NAKAMURA

The challenge in the high-precision cutting of large workpieces is the reduction of heat deflection on machine tools caused by external and internal temperature changes. There is now a need for a new high-precision cutting technology, as existing heat deflection correction technology for dealing with the heat generation of the spindle no longer meets the need for higher precision. Mitsubishi Heavy Industries, Ltd. (MHI) developed the "MVR-Eχ" double column machining center. The MVR-Eχ realizes high-precision cutting with easier operation thanks to the internal spindle cooling system and thermally stabilized columns, which were installed as standard on a domestic product for the first time. As well as developing an operator assist system and adding a preventive maintenance system, we addressed improvements in the exterior design and made the machine take on a look that gives the impression of high precision.