坦克履带低频振动扩孔实验研究

低频振动扩孔“切削一分离一切削一分离”的脉冲动作使钻头在加工过程中产生纠偏效果，提高了孔的直线度；振动扩孔的脉冲切削、微细切削、重复熨压以及断屑特性使已加工表面质量得以提高。进行了坦克履带扩孔实验，并对相同条件下普通扩孔和振动扩孔的孔加工直线度和表面质量进行了比较。实验表明：振动扩孔的孔直线度比普通扩孔提高一级；振动扩孔的表面粗糙度比普通扩孔提高两级。

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....