FIELD: mechanical engineering. SUBSTANCE: device has base and upper plate mounted parallel to it and provided with device for fixing a workpiece. A heat member is rigidly connected to the base and upper plate. The heat member is a reservoir filled up with a fluid, stabilizing heat member temperature and fixing the upper plate. On power supply the fluid being heated extends the housing and moves the plate. At 100 C heat expansion of the housing stops and sparking-out becomes possible. The micro-feeding is provided with one heat member. EFFECT: enhanced quality and capability. 2 dwg
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