共查询到19条相似文献,搜索用时 109 毫秒
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在无外加压力或真空的大气条件下制备碳化硅颗粒增强铝基复合材料,该工艺以K2TiF6为助渗剂,使其与碳化硅颗粒均匀混合,在浸渗用的铸模中制成混合全,由液奢望 铝或其合金自动浸渗制备碳化硅颗粒增强的铝基复合材料SiCp/Al。分析了影响工艺过程的若干因素,指出用该工艺制备复合材料的可能性,并对浸渗机理进行了探讨 。 相似文献
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本文提出了制备碳化硅颗粒增强铝基复合材料渗透法新工艺,该工艺主要特点是:在空气气氛下干850-950℃温度范围内,不用外加压力或真空,通过助渗剂作用,使铝或铝合金液自动地渗入增强颗粒内部制金属基复合材料。 相似文献
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张益平 《中国制造业信息化》2000,(2):47-49
主要研究碳化硅颗粒增强铝基复合材料的脉冲激光焊接。着重讨论激光光强、脉冲作用时间及激光束聚焦位置等参数对焊缝熔深和宽度的影响。研究结果表明 ,铝基复合材料的激光焊接区存在着 3个明显不同的区域 相似文献
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Study on tool wear and surface roughness in machining of particulate aluminum metal matrix composite-response surface methodology approach 总被引:2,自引:1,他引:1
M. Seeman G. Ganesan R. Karthikeyan A. Velayudham 《The International Journal of Advanced Manufacturing Technology》2010,48(5-8):613-624
Metal matrix composites (MMC) have become a leading material among composite materials, and in particular, particle reinforced aluminum MMCs have received considerable attention due to their excellent engineering properties. These materials are known as the difficult-to-machine materials because of the hardness and abrasive nature of reinforcement element-like silicon carbide particles (SiCp). In this study, an attempt has been made to model the machinability evaluation through the response surface methodology in machining of homogenized 20% SiCp LM25 Al MMC manufactured through stir cast route. The combined effects of four machining parameters including cutting speed (s), feed rate (f), depth of cut (d), and machining time (t) on the basis of two performance characteristics of flank wear (VBmax) and surface roughness (Ra) were investigated. The contour plots were generated to study the effect of process parameters as well as their interactions. The process parameters are optimized using desirability-based approach response surface methodology. 相似文献
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高铝锌基合金加工耗能低,回收再利用率高,对环境污染少,具有良好的环境友好性能。综述了颗粒增强高铝锌基复合材料的制备工艺,论述了高铝锌基复合材料在滑动轴承、模具制造等方面的应用。 相似文献
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讨论了常用碳及氧化铝增强铝及铝合金复合材料中常见纳米相 ,其中包括纤维本身结构的组元及反应产物中的新生纳米相。由于这些相的形成条件、形成区域不同 ,对复合材料性能的影响也不同。 相似文献