An automation of welding process which generally corresponds to 3D work is very important in factories.
In the multipass welding of pressure vessel made of a thick plate, the mechanical touch sensor is generally used to measure the gap and depth of...
An automation of welding process which generally corresponds to 3D work is very important in factories.
In the multipass welding of pressure vessel made of a thick plate, the mechanical touch sensor is generally used to measure the gap and depth of narrow-gap joint to perform seam tracking. But such a mechanical touch sensor may commit measuring errors caused by the deterioration of the measuring device.
The developed automation system of narrow-gap welding using a laser vison sensor can track the welding seam line of narrow-gap and control welding parameter. The joint profile of narrow-gap with depth 250㎜ & root gap 28㎜ can be captured by laser vision camera. The laser vision system is programmed to track the center of the bottem joint, and it performs two pass welding each layer.