摘要
为提高工件表面微型凹坑织构的面密度和加工效率并实现织构深度的可控性,提出以机床为载体的超声振动冲击表面织构工艺方法,考察不同工艺参数对工件外圆面及端面织构成形和形貌的影响。结果表明:微型工具头在每个振动周期内可分离冲击工件表面并形成具有高面密度的微型凹坑阵列结构,弹性变形使微型凹坑织构深度小于理论计算值;切出织构位置存在凸起,工件表面上的凸起结构处理完成后即可进行减摩和润滑应用。
In order to improve the areal density and processing efficiency of micro-dimple texture on the surface of the workpiece and realize the controllability of the texture depth,a ultrasonic vibration impact surface texture method based on machine tool was proposed. The influence of different processing parameters on the surface texture structure and topography of the workpiece’s cylindrical face and end face were investigated. The results show that the micro tool can impact the surface of the workpiece separately and form micro dimple texture array structure with high areal density in each vibration period. The elastic deformation causes the depth of micro dimple texture to be smaller than the theoretical calculation value;There are bulges in the position of tool departure,and friction reduction and lubrication can be applied after grinding the bugles.
作者
马嘉明
郑建明
刘驰
杨智
胡亚卿
MA Jiaming;ZHENG Jianming;LIU Chi;YANG Zhi;HU Yaqing(School of Mechanical and Precision Instrument Engineering,Xi'an University of Technology,Xi'an 710048,China)
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2020年第1期62-67,共6页
Ordnance Material Science and Engineering
基金
陕西省自然科学基础研究项目(2019JM-468)
关键词
超声振动冲击
表面织构
犁沟效应
微型凹坑形貌
ultrasonic vibration impact
surface texture
plough effect
micro dimple topography
