摘要
减少和补偿让刀量、提高表面质量一直是钛合金薄壁件加工工艺理论研究的热点和难点,针对这一问题,通过设计正交试验,采用硬质合金刀具进行钛合金薄壁件切削加工试验研究,采用Wyko NT9300光学轮廓仪研究薄壁件因让刀而引起的截面形貌变化,进一步获得表面粗糙度、让刀量与工件刚度之间的关系以及加工工艺参数对表面粗糙度和让刀量的影响,以最小表面粗糙度Ra和最小让刀量χ为优化目标进行加工参数的优化,为钛合金薄壁件高效、高质量的加工方法和技术提供支持。
Reducing and compensating dimensional error and improving surface quality always are focus and difficulty of Ti6Al4V thin-walled components process theory study.Therefore,orthogonal test is conducted to investigate machining Ti6Al4V thin-walled components by cemented carbide cutlery.Then cross-section morphology induced dimensional error is gotten using Wyko NT9300 optical Profiler,and further obtained the relationship between surface roughness,dimensional error and workpiece stiffness.The influence of process parameter on surface roughness and dimensional errors is also obtained.The process parameters are optimized based on the minimum surface roughness and dimensional errors and it is hoped to supply support for high efficiency,high-quality processing methods and technology of Ti6Al4V thin-walled components.
出处
《粉末冶金材料科学与工程》
EI
2010年第6期586-592,共7页
Materials Science and Engineering of Powder Metallurgy
基金
国家高技术研究发展计划(863计划)资助项目(2009AAD44303)
国家科技重大专项(2009ZX04012-032)
关键词
薄壁件
钛合金
加工参数
表面粗糙度
让刀量
thin-walled component
titanium
machining parameters
surface roughness
dimensional error
