Aeroengine is a highly complex and precise thermal machinery
At present, for high-performance combustion chambers, the temperature generated by combustion is as high as 2400K. The flame tube is the main component of the combustion chamber and the place to organize combustion.
The flame tube is a typical large-sized thin-walled piece, with a thickness of only 2mm, a diameter of more than 800mm, and some even more than 1000mm.
Even the most advanced single crystal materials have a melting point of only 1500K, which is far lower than the temperature of the combustion chamber.
The cooling film hole is an important structure to maintain the flame tube to withstand the working temperature exceeding the melting point. Generally, there are 10000 to 20000 film holes on a flame tube. These film holes are not only large in number, but also have different distribution positions, azimuth and other parameters.
These gas film holes are precisely designed and processed to form a uniform cooling film protective layer on the flame tube wall during operation, which reduces the temperature of the flame tube wall and enables it to withstand the impact of high temperature and high pressure airflow.
The quality of these film holes on the flame cylinder can directly affect whether the cylinder wall is exposed to high temperature gas, thus affecting the life and running state of the engine.
Now the temperature of the combustion chamber of the engine is constantly increasing, and the materials are becoming more and more complex. It is increasingly difficult to process the film holes or detect the hole quality!
SZWN Micro nano Technology Research Corporation independently developed ultra fast laser processing equipment with independent intellectual property rights in the aspect of cooling film hole drilling, innovated and utilized ultra fast laser cold processing and rotary cutting processing technologies to achieve high-precision, high-efficiency and high-quality processing of film holes, guaranteed the non hot melt effect in the processing process, and online detection technology, real-time feedback and adjustment, to ensure the workpiece processing quality, improve processing efficiency and stability.
In the next time, our team will also be committed to the technical iteration of high-end engine parts processing, and strive to promote the localization process of domestic large aircraft.