用X射线微观断层扫描技术对熔模铸造型壳的观察分析  

Application of XMT in Research of Drying Process and Microstructure of Investment Casting Shell

作　　者：熊晋[1] 吕志刚[1] 崔旭龙[1] 

机构地区：[1]清华大学机械工程系先进成形制造教育部重点实验室,北京100084

出　　处：《铸造》2010年第10期1016-1019,共4页Foundry

基　　金：国家自然科学基金项目(50875144)

摘　　要：采用X射线微观断层扫描技术(XMT)直接观察熔模铸造面层型壳干燥过程中的物质迁移及裂纹形成过程,对深入分析工艺参数对面层型壳成形质量的影响提供了有效手段。利用XMT对型壳的不同干燥过程进行三维扫描和数字化重构,获得了反映型壳微观结构的数字化三维模型,从而为基于型壳微观结构的破坏过程分析计算打下了基础。The process of material migration and crack generation can be observed by using X-ray Micro Tomography（XMT）,which is an efficient method to penetrate with analyzing the influence of technical parameters on the prime shell forming quality.At the same time,XMT can also take three-dimensional scanning and modeling of the micro-structure of different shell sample,which is the basis for analyzing the process of destruction based on micro-shell structure.

关 键 词：XMT 熔模铸造 型壳 模拟仿真 三维重构 

分 类 号：TG249.5[机械工程—精密仪器及机械]