Control of the welding process using infrared sensors

Author

Nagarajan, Sundaram ; Banerjee, Probal ; Chen, WeiHua ; Chin, Bryan A.

Author_Institution

Dept. of Mater. Eng., Auburn Univ., AL, USA

Volume

8

Issue

1

fYear

1992

fDate

2/1/1992 12:00:00 AM

Firstpage

86

Lastpage

93

Abstract

Integration of sensors in a welding system enhances the quality of the welds produced. Variations in three welding process parameters-weld bead width, penetration depth, and torch position-were monitored using an infrared sensor. Intentionally induced variations in each of these welding parameters were found to affect uniquely the plate surface temperature distributions measured by the infrared sensor. The effects of weld bead width and torch position perturbations on the temperature distribution were separated so as to identify and control these two weld process parameters simultaneously. Preliminary results suggest that simultaneous penetration depth, bead width, and torch position control is possible

Keywords

infrared detectors; manufacturing computer control; welding; infrared sensors; penetration depth; plate surface temperature distributions; sensor integration; torch position; weld bead width; welding control; welding process parameters; Condition monitoring; Control systems; Infrared sensors; Optical control; Photodiodes; Process control; Sensor systems; Temperature distribution; Thermal variables measurement; Welding;

fLanguage

English

Journal_Title

Robotics and Automation, IEEE Transactions on

Publisher

ieee

ISSN

1042-296X

Type

jour

DOI

10.1109/70.127242

Filename

127242