Study on low-frequency vibration reaming of panzer pedrail

Low-frequency vibration reaming (LFVR) with "cutting-separating-cutting-separating" pulsant action has rectification effect and improves the straightness; the characters of LFVR, involving pulsant cutting, micro-cutting, repeated pressing and disconnection chip, can improve the surface quality of holes. The reaming experiments on panzer pedrails plates were carried out and comparisons of straightnesses and surface qualities between the reaming with LFVR and the conventional were performed under the same conditions. The experimented results show that the straightness improves by one level and the surface roughness enhances by two levels compared to the conventional reaming.