Arc Welding Control

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CRC Press, Aug 15, 2003 - Technology & Engineering - 624 pages
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Written by a pioneer in the field, Arc Welding Control covers all aspects of this emerging technology. Part 1 quantitatively describes the dynamic behaviour of arc welding, the power sources used, and their effect on welding technology through the basis of control theory. Part 2 describes new ways of controlling the welding arc through modern electronics. Part 3 establishes the first mathematical model of the arc sensor on the basis of control theory and Part 4 describes a new method for measuring weldment temperature fields using the colorimetric-imaging method. Finally, Part 5 describes the idea of recognizing weld grooves with a three-dimensional vision system and automatic programming of the weld path.
 

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Contents

Theoretical analysis
3
Dynamic characteristics of power sources
19
Experimental study
52
Control method QHARC 101
85
Control method QHARC 102 and 103
126
Arc control of C02 welding and AC MIG welding
179
Sensors for weldseam tracking
235
Mathematical models of arc sensors
261
An automatic seamtracking machine with
360
Principles of the colorimetric imaging method
411
Study of the colorimetric imaging method
429
Design of a colorimetric imaging apparatus
450
Practical measurement and application
488
Vision systems and automatic path programming
531
References
582
Index
601

Processing of arcsensor signals
296

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About the author (2003)

Pan Jiluan is Professor and Chair of the Department of Mechanical Engineering at Tsinghua University, Beijing and is also President of Nanchang University, China.

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