高强度耐磨铝青铜材料的滚压性能研究  

Investigation on Burnishing Performance of Aluminum-bronze Alloy

作　　者：张田[1] 夏伟[2] 李风雷[2] 周照耀[2] 李元元[2] 

机构地区：[1]华南理工大学金属新材料制备与成型研究开发中心 [2]华南理工大学

出　　处：《工具技术》2007年第2期27-31,共5页Tool Engineering

基　　金：国家自然科学基金资助项目(项目编号:50075026);广东省自然科学基金资助项目(项目编号:06025669)

摘　　要：在自行研制的气动滚压装置上,应用响应曲面法中的Box-Bahnken试验设计对高强度耐磨铝青铜材料的滚压性能进行了研究,分别建立了表面粗糙度、显微硬度与滚压参数(滚压力、滚压速度和滚压次数)的数学模型,分析了各参数对表面粗糙度和显微硬度的影响。试验结果表明该滚压装置能使铝青铜工件的表面质量由加工前的Ra2·02μm、HV201达到Ra≤0·12μm、HV330以上。最后根据试验结果对滚压参数进行了优化。With the air-powered burnishing equipment developed by ourselves, an investigation on the surface roughness and micro-hardness of a burnished aluminum-bronze alloy was conducted. Based on Response Surface Method （BSM）, a Box-Behnken design of the process parameters including burnishing force, burnishing speed and number of passes was used, and a second-order regressive mathematical model was established. Meanwhile, the influence of process parameters on surface roughness and micro-hardness were discussed respectively. Experimental results show that, from an initial Ra2.02μm, HV201, the specimen can be finished to Ra≤0.12μm, HV330. Furthermore, the optimum process parameters were obtained.

关 键 词：滚压 铝青铜 响应曲面法 表面粗糙度 显微硬度 

分 类 号：TG291[金属学及工艺—铸造]