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Title: Ceramic Shot Experimental Demonstration Of Intelligent Peen Forming On Aluminium Alloy
Author: Abadie, Beaudonnet , Zarka
Source: Conf Proc: ICSP-10 Tokyo, Japan 2008
Publication year 2008
Document number: 2008078
Number of pages: 6
Abstract:
ABSTRACT
Today, peen forming is performed through a step by step peening operation with partial coverage and partial automation. It requires time, experience, controls and correction
operations. There is definitely a need for automatic manufacturing of large shaped components such as: wing skin, spar, wing panels… By coupling the existing knowledge of
experts, numerical results, and experimental data, with special automatic learning and optimization techniques, CADLM thanks to its Advanced Intelligent Design of Structures
System can provides a solution for a fully automatic peen forming process where instructions given to the robot would directly lead to the final required shape. The paper
first reports experimental works with ceramic beads on material to built a data base of elementary cases to allow capitalising results and generating rules.
Different parameters have been studied such as bead size and velocity and panel thickness. Then reverse problem has been studied: bigger flat panels of 2017A T4 aluminium
alloy were peened under various conditions. Curvature was measured in different locations to describe the panel shape. Experimental results on flat panels compared with
predicted curvature are presented. Very good correlation has been found. Roughness measurements show that it is possible to combine high distorted shape with good surface
condition without any further finishing operation. Application on actual parts with thickness variations and pre-bended shapes would be necessary to validate the process.
KEY WORDS:
Aluminium, automatic peen forming, CAD, calculation, ceramic shot, shape, prediction, roughness, saturation.
This ICSP paper is not available until September of 2011. You may purchase the complete conference procedings ICSP-10 for $230 at Electronics Inc +1-574-256-5001
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This page last revised: 03/22/2010