Evaluation of Surface Roughness in Machining SiCp/Al Composites

摘要：

　　During machining MMCs,cracking and debonding of hard reinforcements are typical defects that greatly affect the characterization parameters of surface topography.However,the few evaluation methods have been developed for extracting information of 3D surface topography.In this paper,a roughness extraction method is established to conduct an evaluation of surface roughness in machining MMCs.To separate the surface defects from surface roughness of metal matrix composite,a filtering method based on DT-CWT is carried out.Compared with the least-square method and gauss filter,the filtering method based on DT-CWT has higher stabi1ity and can effectively distinguish the information between surface roughness and surface defect.By using the roughness extraction method based on DT-CWT,it is found that the surface roughness value of 2024Al matrix composite is lower than that of 6063Al matrix composite.

关键词： SiCp/Al composites surface roughness dual-tree complex wavelet transform

作者: DUAN Chunzheng SUN Wei FENG Zhan

作者单位: Key Laboratory for Precision and Non-Conventional Machining of the Ministry of Education,School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China

会议类型: 国际会议

会议名称: 第十七届国际制造会议(The 17th International Manufacturing Conference in China)(IMCC 2017))

会议地点: 深圳

会议语种:英文

页码: 1-6

在线出版日期: 2017-11-23（万方平台首次上网日期，不代表论文的发表时间）