航天铝基复合材料零部件超精密加工技术研究

CORC > 集美大学

	航天铝基复合材料零部件超精密加工技术研究
	王大镇 ; 冯培锋 ; 赵清亮 ; 刘华明
刊名	http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=yhxb200606042&dbcode=CJFQ&dbname=CJFQ2006
	2012-06-05 ; 2012-06-05
关键词	铝基复合材料超精密加工表面粗糙度微观形貌加工变质层 Aluminum-matrix composites Ultraprecision machining Roughness Microstructure Subsurface quality V461
其他题名	Study on the Ultraprecision Machining Technology of Aluminum-Matrix Composite Astronautic Parts
中文摘要	针对航天高碳化硅铝基复合材料零部件采用聚晶金刚石PCD刀具进行了超精密车削加工试验,用原子力显微镜AFM和扫描电子显微镜对其进行了检测,分析了零部件表面粗糙度值的大小及影响因素、SiCw变形破坏机理、已加工表面微观结构及加工变质层特性。结果表明,超精密车削高碳化硅铝基复合材料零部件可以获得超精密级加工表面(如Ra11.5nm);超精密车削过程中SiCw存在着三种主要变形破坏机理:直接剪断型、拔出型和压入型,且以直接剪断型为主。直接剪断的SiCw对表面粗糙度值影响最小,而后二者是影响表面粗糙度值达到超精密级的主要障碍;超精密加工零部件表面仍会产生很薄的加工变质层。; The Ultraprecision machining experiments of aluminum-matrix composite astronautic parts with polycrystalloid diamond PCD cutter were done,measurement analysis of surface quality with Atom Force Microscope(AFM) and Scan Electronic Microscope(SEM) was carried,and the roughness value and impact factors and the deformation cut off mechanism of SiC_w and the microstructure of machined surface and subsurface quality were reviewed.The results show that the surface finish of ultraprecision machining grade,that is R_a11.5nm,can be gotten when machining aluminum-matrix composite parts reinforced with SiC_w,but it is hard.The deformation cut off mechanism of SiC_w whiskers in the machining process is that direct cut off,pulling out,putting in,and direct cut off is main deformation mode.The pulling out and putting in mode affect highly for the roughness of ultraprecision machining surface.There is a thin degenerative layer in subsurface,and the higher hardness(HV) location is not at surface.The main reasons of increasing microhardness are the falling to pieces of SiC_w and rearranging of SiC_w.; 【作者单位】集美大学机械工程学院；哈尔滨工业大学机电学院精密工程研究所；哈尔滨工业大学机电学院精密工程研究所厦门361021；厦门361021；哈尔滨150001；【作者英文名】WANG Da-zhen~1,FENG Pei-feng~1,ZHAO Qin-liang~2,LIU Hua-ming~2(1.School of Mechanical Engineering,Jimei University,Xiamen 361021,China;2.Precision Engineering Research Institute,Harbin Institute of Technology,Harbin 150001,China)
语种	中文
内容类型	期刊论文
源URL	[http://ir.calis.edu.cn/hdl/235041/14563]
专题	集美大学
推荐引用方式 GB/T 7714	王大镇,冯培锋,赵清亮,等. 航天铝基复合材料零部件超精密加工技术研究[J]. http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=yhxb200606042&dbcode=CJFQ&dbname=CJFQ2006,2012, 2012.
APA	王大镇,冯培锋,赵清亮,&刘华明.(2012).航天铝基复合材料零部件超精密加工技术研究.http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=yhxb200606042&dbcode=CJFQ&dbname=CJFQ2006.
MLA	王大镇,et al."航天铝基复合材料零部件超精密加工技术研究".http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=yhxb200606042&dbcode=CJFQ&dbname=CJFQ2006 (2012).