Open AccessIncreasing the shape accuracy of the hardened parts of the frame by technological methods
Author(s) -
A. A. Makaruk,
A. A. Pashkov,
O. V. Samoylenko
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/632/1/012100
Subject(s) - fixture , rigidity (electromagnetism) , pressing , hardening (computing) , deformation (meteorology) , materials science , structural engineering , mechanical engineering , engineering , composite material , layer (electronics)
Aluminum alloy parts of the aircraft’s power frame are usually ribbed longitudinally and transversely to increase rigidity. As a result, the cross-section of such parts is a complex complex shape in the form of a brand, channel, I-beam, etc. with straight and inclined shelves. In the manufacturing of parts in the process of both mechanical processing and subsequent impact hardening there is an undesirable deformation (leashes), which is expressed in the deviation from the plane and saber-like form. After milling, the leashes can be removed by local plastic deformation methods, such as rolling by rollers, or by pressing, and after hardening, mechanical treatment, including straightening by local plastic deformation methods, is not allowed by the industry standard technical procedure. Expansion of technological possibilities of manufacturing of low-rigid parts with application of technology of preventive deformation -introduction of pre-distortion of the form of a detail for compensation of the leashes arising on the subsequent strengthening operations by methods of surface plastic deformation.