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Improving the lifetime of an automatic welding system

✍ Scribed by Yann-Chyn Jeng

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
65 KB
Volume
15
Category
Article
ISSN
0748-8017

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✦ Synopsis

In an industrial development project an automatic welding system for multilayer steel plates is developed for mass production. The aluminium alloy rails of the system are subjected to wear-out failure. The purpose of this paper is to determine an optimal design such that the reliability (life) of the rails is improved. Seven control factors are considered likely to influence the lifetime of the rails. An L 8 (2 7 ) orthogonal array is employed to analyse the data and to reach an optimal design. A comparison is made to verify that the optimal design is better than the current system.

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In this paper, we describe an automatic detection system to recognise welding defects in radiographic images. In a first stage, image processing techniques, including noise reduction, contrast enhancement, thresholding and labelling, were implemented to help in the recognition of weld regions and th