Before the sacrifice of the "Golden Phoenix" Yu Xu, senior researcher at the Chinese Academy of Sciences in Ningbo, Zhang Wenwu has been thinking, what is the problem caused the aircraft accident. As the Ningbo Institute of advanced manufacturing technology research institute deputy director, in recent years, Zhang Wenwu led the research team, has been in the key technology of intelligent burning laser pointer processing research, and the core component of this technology will be used in the next generation of Chinese engine manufacturing.
This year, Zhang Wenwu made the team "turbine blade complex" Research on key technology of special film hole intelligent laser processing project, the National Natural Science Foundation of Zhejiang - the integration of the two support fund, provides the possibility for the cure of aero engine core components.
What is a complex shaped hole? In the lab, Zhang Wenwu demonstrated the use of intelligent laser processing out of the relevant products. In a composite plate, one side is a pinhole size of the hole, and turn over, is a slotted "cat ears", and the arrangement of the stomata in order, is a complex shaped hole. "With complex shaped holes, high speed air flow from the pinhole side into the air, out on the other side because of the shape of stomata can form a layer of" film "." Zhang Wenwu told reporters, and this will become the high temperature of the aircraft engine protection layer.
"Do not look at this small opening, in the absence of intelligent three-dimensional green laser pointer processing technology, the processing of these gas shaped holes is very difficult." Zhang Wenwu said that the traditional processing technology is not only time consuming, low precision, but also in the processing of the formation of fine cracks, for the stability of the aviation engine buried security risks. "High temperature resistance is the key to the aviation engine, and this is also the reason why China's aviation engine to improve the overhaul cycle must be one of the key areas to improve."
Intelligent 3D laser processing is the advanced manufacturing technology, leading the Zhang Wenwu said that the project will be divided into research steps, based on the previous study, the project from the cooling mechanism of scientific and systematic design problem solving complex shaped air film hole; after the laser from TBC/ high temperature alloy multilayer material removal and damage mechanism of one step forming low damage to break through the obstacles of shaped holes; finally, with the macro micro and special 1mw laser pointer head, automatic processing and quality control of complex shaped holes on the surface, in order to accelerate the application of complex shaped holes in the domestic aviation engine blades.
http://www.tennis-motion-connect.com/blogs/post/18051
留言列表
