基于仿真的大型水轮机叶片三轴加工工艺及程序优化  

3-axial NC processing craft and program optimization for larger turbine blades based on simulation

作　　者：何婷[1] 赖喜德[1] 

机构地区：[1]西华大学能源与环境学院,成都610039

出　　处：《机械设计与制造》2009年第6期93-95,共3页Machinery Design & Manufacture

基　　金：四川省教育厅自然科学重点项目(07ZA116);四川省科技支撑计划重点攻关项目(2008GZ0072)

摘　　要：由于经济和技术等方面的原因,目前国内仍广泛采用三轴联动数控机床来加工大型水轮机叶片。在加工工艺规划与编程过程中,如何既保证叶片加工精度要求又提高加工效率是其关键技术之一。根据大型水轮机叶片曲面的特点,并结合简化加工工艺的要求,对商业软件进行二次开发,得到相应的仿真加工技术。采用计算机仿真加工来评估加工工艺方案和优化刀具轨迹,实现多方案、多加工参数的优选和优化,经过验证表明能够有效保证加工精度和提高效率。As a result of economy and technology reasons and so on,domestic manufacturers are still widely using three-axis CNC machine tools to process large turbine blades at present. In the process of craft planning and programming, how to ensure that both the required machining precision and processing efficiency is one of the key technologies. According to characteristics of the large turbine blade＇s surface and the requests of craft＇s simplification,in this article we focused on the second development of the commercial soft- ware to get corresponding simulation technology. Processing by computer simulation to assess the processing craft plan and optimize the tool path to realize the optimal choice and optimization of multi-programme and multi-processing pararneters ,which is proved that can effectively ensure accuracy and raise efficiency.

关 键 词：水轮机叶片 仿真 优化 

分 类 号：TH16[机械工程—机械制造及自动化] TG547[金属学及工艺—金属切削加工及机床]