Metal sheet fatigue specimen polishing device and polishing method

The invention discloses a metal sheet fatigue specimen polishing device. The device comprises a stepping sliding support, a specimen bench clamp, an electric grinder fixing frame and an electric grinder, wherein the stepping sliding support is used for reciprocating motion in a east-west direction of a metal sheet fatigue specimen, the specimen bench clamp is positioned on the stepping sliding support and is used for reciprocating motion in a north-south direction of the metal sheet fatigue specimen, the electric grinder fixing frame is arranged beside the stepping sliding support and is usedfor fixing the electric grinder, and the electric grinder is arranged on the electric grinder fixing frame and is used for polishing the metal sheet fatigue specimen. The invention further provides ametal sheet fatigue specimen polishing method. According to the device, the surface of the metal sheet specimen can be polished, and polishing is simple, convenient and uniform. 本发明公开了一种金属薄板疲劳试样抛光装置，其包括步进滑动支架、试样台钳、电磨固定架和电磨；所述步