摘要
根据弯管冲蚀破坏处的特点,提出一种新的差异化加工工艺。利用机械手的灵活性,在弯管加工过程中改变弯管内外侧的加工间隙,实现弯管内壁的差异化研磨,提高其表面质量。结果表明:在加工时间为75 min,弯管内外侧加工间隙均为2.0 mm时,弯管外弧的内表面粗糙度从0.70μm下降到0.34μm,弯管内弧的内表面粗糙度从0.82μm下降到0.32μm;在差异化研磨时,弯管外侧加工间隙为1.5 mm,内侧加工间隙保持为2.0 mm不变,弯管外弧的内表面粗糙度从0.70μm下降到0.26μm,弯管内弧的内表面粗糙度从0.82μm下降到0.29μm。差异化研磨可有效提高弯管的内表面质量。
According to the characteristics of elbow erosion damage position,a new differential processing technology was proposed.Using the flexibility of the manipulator,the machining gap between the inner and the outer side of the el-bow was changed in the process of elbow machining,so as to realize the differential grinding of the inner wall of the el-bow and improve its surface quality.The results show that when the machining time is 75 min and the machining gap between the inner and the outer side of the elbow is 2.0 mm,the inner surface roughness of the outer arc of the elbow is reduced from 0.70μm to 0.34μm,and the inner surface roughness of the inner arc of the elbow is reduced from 0.82μm to 0.32μm.During differential grinding,the outer machining gap of the elbow is 1.5 mm,the inner machining gap remains unchanged at 2.0 mm,the inner surface roughness of the outer arc of the elbow is reduced from 0.70μm to 0.26μm,and the inner surface roughness of the inner arc of the elbow is reduced from 0.82μm to 0.29μm.Differential grinding can effectively improve the inner surface quality of the elbow.
作者
徐进文
陈松
胡菁华
张磊
杨欢
陈燕
XU Jinwen;CHEN Song;HU Jinghua;ZHANG Lei;YANG Huan;CHEN Yan(School of Mechanical Engineering and Automation,University of Science and Technology Liaoning,Anshan 114501,Liaoning,China;Northern(Dalian)Engineering&Technology Corporation,MCC,Dalian 116000,Liaoning,China)
出处
《金刚石与磨料磨具工程》
CAS
北大核心
2022年第4期481-487,共7页
Diamond & Abrasives Engineering
基金
国家自然科学基金(51775258)
辽宁省教育厅基金(2020FWDF07)。
关键词
磁粒研磨
表面粗糙度
弯管
加工间隙
magnetic abrasive finishing
surface roughness
elbow
machining gap
