What is the application of precision parts processing in the aviation industry?
With the rapid development of the aviation industry, higher and higher requirements are imposed on semi-finished products of industrial aluminum profiles. In particular, high-speed military and civil aircraft require relatively complete semi-finished products to make the structure of each component more reasonable and ensure structural quality. Light, strong and rigid, while significantly reducing the number of parts, reducing the cost of assembly, joints and maintenance. Ensure a perfect surface (seal, no seams, no deformation, etc.).
(1) Large-scale industrial aluminum profiles are particularly important structural parts on aircraft, requiring profiles to have excellent mechanical properties. Therefore, aluminum profiles must be made of industrial aluminum alloy profiles using hard aluminum or super-hard aluminum alloy for extrusion production. Such as : Alu 7075/ 3.4365/ AlZn5.5MgCu/ AlZnMgCu1.5 is the good material for aerospace fields,
(2) Since industrial aluminum profiles are used as structural parts for key parts of the aircraft, good comprehensive performance and uniform organization are required, especially for finished products. However, the coarse ring defects in the quenched products after extrusion are difficult to avoid, and it is also one of the research topics of the 868 profile meter of the German aluminum alloy which has been worked hard for many years by the extrusion workers all over the world.
(3) For aluminum profiles such as cross-beam girders and comb-shaped joint plates, on the one hand, the large sectional area tends to make the extrusion deformation coefficient relatively small, and on the other hand, the lateral and high directions must bear a large load. Therefore, it is required to have high mechanical properties in the lateral direction and the high direction. This contradiction is often an important cause of scrapping aluminum profiles.
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