UG的航空发动机叶片多轴高速切削CAD/CAM

摘要航空发动机叶片是发动机的核心部件之一，发动机的性能很大程度上取决于叶片型面的设计和制造水平，叶片是一类典型的薄壁自由曲面零件，它的曲面形状和制造精度直接决定了飞机发动机的推进效率的大小，所以合理的进行加工程序的编制，选择合理的切削用量、因地制宜地选用刀具材料成为顺利加工出该零件的关键技术之一。
    首先介绍了国内外的叶片零件的加工主要方法和改善低刚度薄壁类零件加工质量的国内外研究。研究航空发动机叶片在UG中复杂曲面的造型方法,针对复杂叶片曲面造型进行了分析，并创建了工艺凸台。对于叶片的计算机辅助设计，即CAD在计算机上对叶片的工艺分析，以及定位与装夹进行设计。
    通过航空发动机叶片加工设计和分析，建立了刀具切削材料，并在计算机上模拟加工，最后基于UG对航空发动机叶片的CAM进行后置处理，生成NC代码，便可以对零件进行加工。整个设计过程充分结合了计算机辅助制造与现代先进数控加工技术，并把平时所学的机械相关知识充分运用于设计之中。9573
关键词：五轴联动加工计算机辅助制造CAD/CAM 高速切削
Aero-engine blades UG-based multiaxial high-speed                cutting CAD / CAM
Abstract aero engine blades is one of the core components of the engine, the engine's performance depends largely on the blade surface in the design and manufacturing level, the blade is a typical thin-walled freeform parts, its curved shape and manufacturing precision direct determines the aircraft engine propulsion efficiency in size, so reasonable for the establishment of processing, reasonable choice of cutting, according to local conditions to become successful processing tool material selection of this part of the key technologies.
     First introduced the domestic parts of the processing blade main methods and improved rigidity thin-walled parts processing low quality domestic and foreign research. Research aircraft engine blades in UG complex surface modeling approach for complex surface modeling leaves were analyzed, and created a craft boss. Computer-aided design of the blade, that the blade on the computer CAD analysis of the technology, as well as positioning and fixture design.
     Aircraft engine blade machining through design and analysis, to establish a cutting tool material and simulated on the computer processing, and finally on the aero-engine blades based on UG CAM in post-processing to generate NC code, they can be processed for parts. Throughout the design process is combined with modern advanced computer-aided manufacturing and CNC machining technology, and the usual mechanical knowledge learned fully applied design.
Keywords: axis machining aided manufacturing CAD / CAM HSM
目录
2013届本科生毕业设计（论文）   1
摘要   2
1绪论..6
1.1 航空发动机叶片概述   6
1. 2 航空发动机叶片加工现状.7
1. 3 UG建模及复杂曲面造型技术.8
1.4五轴联动数控加工技术9
1.5论文的主要研究内容和工作..10
2叶片造型及凸台建模设计11
2.1引言   11
2.2航空发动机叶片三文造型研究   12
2.2.1基准面的选择   12
2.2.2线条数据的处理   12
2.2.3二文曲线的形成   12
2.3 创建叶片   13
2.3.1叶身造型   13
2.3.2叶根造型   14
2.4 创建凸台.15
2.5本章小结   19 UG的航空发动机叶片多轴高速切削CAD/CAM:http://www.751com.cn/jixie/lunwen_8344.html