Measurement of workpiece temperature during welding for welding robot control
Abstract
MIG/MAG welding robot seam tracking system based on a symetrically noncontact temperature measurement is presented. Using literature in formation on temperature distribution during welding, a model for the prediction of the behavior of a pyrometer twin is constructed. The temperature difference between the measuring points constitutes the signal for a position control of the twin holding welding torch. As temperature measurement is made impossible by radiation originating from the welding arc, this is done during intermittent welding in time intervals in which the welding arc is switched off.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1983
- Bibcode:
- 1983STIN...8610534I
- Keywords:
-
- Gas Tungsten Arc Welding;
- Radiation Pyrometers;
- Robot Control;
- Robots;
- Temperature Measurement;
- Welding Machines;
- Computer Aided Manufacturing;
- Computer Programs;
- Robotics;
- Seams (Joints);
- Temperature Distribution;
- Torches;
- Instrumentation and Photography