SiCp/Al复合材料的超精密车削试验

葛英飞; 徐九华; 杨辉

doi:null

您当前的位置：

首页 >

文章列表页 >

SiC_p/Al复合材料的超精密车削试验

微纳技术与精密机械 | 更新时间：2020-08-12

- SiC_p/Al复合材料的超精密车削试验
- Experiments of ultra-precision turning of SiC_p/Al composites
- 光学精密工程 2009年17卷第7期页码：1621-1629
- 作者机构：
  
  1. 南京航空航天大学机电学院,江苏南京,210016
  2. 南京工程学院机械系,江苏南京,211167
  3. 北京航空精密机械研究所北京,100076
- 作者简介：
- 基金信息：
  
  国防科技重点实验室基金资助项目(No.51464010604HK1301)();南京工程学院科研启动基金资助项目(No.KXJ08002();No.KXJ08024)()
- DOI：
  中图分类号： TB33;TG506.2
- 收稿日期：2008-08-05，
  
  修回日期：2008-09-24，
  
  网络出版日期：2009-07-25，
  
  纸质出版日期：2009-07-25
- 稿件说明：
移动端阅览
葛英飞, 徐九华, 杨辉. SiCp/Al复合材料的超精密车削试验[J]. 光学精密工程, 2009,17(7): 1621-1629

GE Ying-fei, XU Jiu-hua, YANG Hui. Experiments of ultra-precision turning of SiCp/Al composites[J]. Editorial Office of Optics and Precision Engineering, 2009,17(7): 1621-1629
葛英飞, 徐九华, 杨辉. SiCp/Al复合材料的超精密车削试验[J]. 光学精密工程, 2009,17(7): 1621-1629 DOI：

GE Ying-fei, XU Jiu-hua, YANG Hui. Experiments of ultra-precision turning of SiCp/Al composites[J]. Editorial Office of Optics and Precision Engineering, 2009,17(7): 1621-1629 DOI：

摘要

试验研究了碳化硅颗粒增强铝基复合材料(SiC

/Al)的超精密车削加工性能。使用扫描电镜(SEM)对已加工表面、切屑及其根部、刀具前/后刀面磨损带进行观察

使用表面粗糙度轮廓仪对各种切削条件下的加工表面粗糙度轮廓进行测试分析。结果表明

该材料的加工表面常残留微孔洞、微裂纹、坑洞、划痕、残留物突起及基体材料撕裂等微观缺陷

刀具几何参数、切削速度、进给量、增强颗粒尺寸和材料体积分数是影响表面粗糙度的主要因素。由于切削变形区微裂纹动态形成的作用

超精密切削该材料时一般形成锯齿型切屑。刀具-工件的相对振动、基体撕裂增强颗粒拔出、破碎、压入等是该材料超精密车削表面形成的主要机制。单晶金刚石(SCD)刀具主要发生微磨损、崩刃、剥落和磨粒磨损

聚晶金刚石(PCD)刀具主要发生磨粒磨损和粘结磨损。结论表明SiC

/Al的超精密切削加工性较差

但通过选择合适的工艺参数

体积分数为15%的SiC

/2024Al加工表面粗糙度

可达24.7 nm。

Abstract

The ultra-precision machinability of SiC

/Al composites is investigated experimentally. A scanning electron microscope (SEM) is used to examine the machined surfaces

chips

chip roots and tool wear lands

and a surface profiling instrument is taken to measure the surface profile roughnesses in different turning conditions. The results show that the machined surface remains a lot of defects such as pits

voids

microcracks

grooves

protuberances

matrix tearing

etc

. The tool geometries

cutting speeds

feed rates

particle reinforcement sizes and the volume fractions are the significant influence factors of surface roughness. Generally

a segmental chip is formed in turning composites due to the effect of dynamic microcrack behavior. The tool-workpiece relative vibration and the removal modes of SiC particles are the main mechanisms of surface generation. The microwear

chipping

peeling and the abrasive wear are the main wear patterns by using the Single Crystal Diamond (SCD) tool

while Polycrystalline Diamond (PCD) tool mainly suffers from the abrasive wear on the rake face and the adhesive wear on the flank face. The experimental result indicates that the SiC

/Al composites has a relatively bad machinability. However

when the cutting parameters are rationally chosen

a surface roughness

of 24.7 nm can be obtained for SiC

/2024Al(in a volume fraction of 15%).

关键词

Keywords

references

MIRACLE D B. Metal matrix composites-from science to technological significance[J]. Composites Science and Technology, 2005,65:2526-2540.[2] 张剑寒,张宇民,韩杰才,等. 空间用碳化硅反射镜的设计制造与测试[J]. 光学精密工程,2006,14(2):179-184. ZHANG J H, ZHANG Y M, HAN J C, et al.. Design, fabrication and testing of space-borne SiC mirror[J]. Opt. Precision Eng., 2006,14(2):179-184. (in Chinese)[3] 崔岩,李丽富,李景林,等. 制备空间光机结构件的高体份SiC/Al复合材料[J]. 光学精密工程,2007,15(8):1175-1180. CUI Y, LI L F, LI J L, et al.. High volume fraction SiC/Al composites for space-based optomechanical structures[J]. Opt. Precision Eng., 2007,15(8):1175-1180. (in Chinese)[4] 林再文,刘永琪,梁岩,等. 碳纤维增强复合材料在空间光学结构中的应用[J]. 光学精密工程,2007,15(8):1181-1185. LIN Z W, LIU Y Q, LIANG Y, et al.. Application of carbon fibre reinforced composite to space optical structure[J]. Opt. Precision Eng., 2007,15(8):1181-1185. (in Chinese)[5] CHANDRASEKARAN H, JOHANSSON J O. Influence of processing conditions and reinforcement on the surface quality of finish machined aluminum alloy matrix composites[J]. Annals of the CIRP, 1997,46(1):493-496.[6] HUNG N P, TAN T C, ZHONG Z W, et al.. Ductile-regime machining of particle-reinforced metal matrix composites[J]. Machining science and technology, 1999,3(2):255-271.[7] CHEUNG C F, CHAN K C, TO S, et al.. Effect of reinforcement in ultra-precision machining of Al6061/SiC metal matrix composites[J]. Scripta Materialia, 2002,47:77-82.[8] ARCONA C, DOW T A. A new technique for studying the chip formation process in diamond turning[J]. Precision Engineering, 1996,18:157-160.[9] KOMANDURI R, BROWN R H. The formation of microcracks in machining a low carbon steel[J]. Metals Materials, 1972,6(12):531-533.[10] 王洪祥,董小瑛,董申. 金刚石车削表面微观形貌形成机理的研究[J]. 哈尔滨工业大学学报,2002,34(4):509-513. WANG H X, DONG X Y, DONG SH. Generation of surface micro-topography in diamond turning[J].Journal of Harbin Institute of Technology, 2002,34(4):509-513.(in Chinese)[11] CHEUNG C F, CHAN K C, LEE W B. Surface characterization in ultra-precision machining of Al/SiC metal matrix composites using data dependent systems analysis[J]. Journal of Materials Processing Technology, 2003,140:141-146.[12] MASAO U. An analysis of the catalysis of Fe, Ni or Co on the wear of diamonds[J]. Tribology International, 2004,37:887-892.

浏览量

564

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

镍渣改质及其在磁性复合流体抛光中的应用

机器人抛光M-ZnS去除函数建模与工艺参数优化

8寸CMP设备对小尺寸镀铜InP晶圆的工艺开发

磁性复合流体抛光过程中水分对抛光性能的影响

单晶硅激光辅助超精密切削工艺优化与表面特性