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西安航空发动机公司制造出一种加工涡轮喷气发动机涡轮盘的枞树型榫槽拉刀,该拉刀是目前世界上制造技术最复杂、制造难度最大的一种拉刀。这种拉刀精度高,使用寿命长,零件拉削后的表面粗糙度可达Ra0.8μm以下,可实现高速拉削和渐切成型。它可拉削13个涡沦盘,与美国同类产品相比较,其寿命长
Xi’an Aero Engine Company manufactures a fir-tree-type flute broach for turbojet turbine discs, which is the most complex and difficult broach in the world today. This broach has the advantages of high precision and long service life, and the surface roughness of parts after broaching can reach Ra0.8μm or less, enabling high-speed broaching and gradual forming. It can broach 13 vortex plates, compared with similar products in the United States, its long life