Abstract
Weld pool surface provides a critical information necessary for understanding arc welding processes. A novel sensing mechanism was proposed to sense the three-dimensional information of the weld pool surface. The reflection of laser stripes from the mirror-like pool surface is deformed by the shape of the weld pool surface. The pool surface is clearly shown by the reflection pattern. In order to calculate the pool surface, the geometry of the reflection must first be extracted from the image. In this paper, image processing algorithms are proposed to extract the torch and electrode boundary, pool boundary, and skeleton of the deformed reflection of the laser stripes. The image processing speed reaches 4 frames per second. Also, the accuracy of the image processing is sufficient for the computation of the pool surface. Currently, the extracted information in the image processing is being used to calculate the three-dimensional shape of the weld pool surface.
| Original language | English |
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| Pages | 255-262 |
| Number of pages | 8 |
| State | Published - 1994 |
| Event | Proceedings of the 1994 International Mechanical Engineering Congress and Exposition - Chicago, IL, USA Duration: Nov 6 1994 → Nov 11 1994 |
Conference
| Conference | Proceedings of the 1994 International Mechanical Engineering Congress and Exposition |
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| City | Chicago, IL, USA |
| Period | 11/6/94 → 11/11/94 |
ASJC Scopus subject areas
- Industrial and Manufacturing Engineering
- Mechanical Engineering