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Title: Using Stress Peen Forming Process For Integrally Stiffened Wing Panels
Author: Li, K.
Source: Conf Proc: ICSP-1, (p.555-564)
Publication year 1981
Document number: 1981080
Number of pages: 9
Abstract:
The features of stress peen-forming are discussed by analysing the forming principles and through experimental research. If the wing panel is elasticly prebended in the
chordwise direction during peen-forming, the chordwise contour curvature will be further increased, and at the same time the spanwise contour curvature will be decreased,
thus the trend in conventional peen-forming for panel taking on the spherical shape can be conquered by using the stress peen-forming to a great extent. The result of
experiment shows that the curvature radius in the prebending direction is inversely proportional to the peening pressure, the shot size and the prebending value under the
saturated peen-forming condition, but it is independent of the nozzle stand-off distance (within 100 to 300 mm). In the paper, one practical example about forming
integrally stiffened wing panels by stress peen-forming in the industrial applications is described.
Descriptors: Stress peen-forming; Conventional peen-forming; Curvature radius of limit; Prebending value; Wing panel
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