As one of the important parts of gas turbine,in order to ensure the manufacturing accuracy of tongue and groove for wheel disc blade root assembly,the processing technology of a certain type of gas turbine fir tree type wheel groove is studied.For the processing of turbine tongue and groove of gas turbine,the processing of tongue and groove is ana-lyzed from the wheel groove processing and processing methods,and the processing of tongue and groove is determined by broaching process.According to the requirements of the size of the leaf root groove,design and manufacture of broaching.Design the corresponding fixture tooling according to the external dimensions of the turbine disc,and fix the turbine disc to form a stable processing state.Design and manufacture of corresponding measuring tools and stop gauges.Through the broaching test of the test block and the test plate,the surface roughness and dimensional error of the test piece are analyzed to determine the broaching process parameters,and finally the broaching process of the turbine disc tongue and groove is re-alized,and the design department is assisted in improving the structure of the leaf root groove in the process of formulating the process,and the fir tree wheel groove broaching processing technology is developed.
关键词
燃气轮机/榫槽/拉削/拉刀
Key words
gas turbine/tongue and groove/broaching/broaching tool
维普
万方数据