Precision Control Techniques in Robot Laser Welding

The current state of robot laser welding is the high-end design of the combining internal skills of the robot and the capability of the welding head equipped with a laser. DP Laser, an international company engaged in the development and design of high-efficient laser welding devices, provides a wide range of robotic welding solutions suitable for various industrial requirements.

Importance of Control in Robot Laser Welding

In robot laser welding, the highest quality welds are produced by merging multiple parameters with the utmost precision. Many details affect the welder’s accuracy - the position in which the robot arm is located, how steady the laser beam is and various control algorithms responsible for specific parameters of the welding process.

The Capacity for Positioning

So that the weld is placed in the correct spot, the robot arm is required to place the welding head at the correct angle and distance. This in turn calls for complex motion control systems integrated with high-end sensors capable of tracking the welding heads position in real time.

Beam Stability

To produce good welds, the laser beam needs to be constant and in control. A small discrepancy in the beam focus or power and then the weld quality will be lower. DP Laser’s machines are equipped with high-tech lasers as well as beam delivery systems that have the ability to remain stable throughout the welding process.

Control Algorithms

The algorithms involved in robot laser welding are very important in ensuring that precision is achieved. These algorithms also determine the parameters of welding including; welding speed, power level, focus point, etc. the above parameters are always material and welding specific and are expected to work within certain limits.

Techniques for Enhancing Precision in Robot Laser Welding

Vision Systems

Vision systems can greatly increase accuracy during robot laser welding by tracking the welding process in real time and feeding that information back. Weld seams or panels in actual sewing are taken as images by cameras attached to the welding arm of the robot which are then used to determine how and what can be done to adjust the welding parameters for it to be correct.

Force Feedback

Welding systems accuracy can be increased by using force feedback which monitors the welding process to detect the amount of force used. This data is then used to change the welding parameters to account for any inaccuracies in following the appropriate welding path.

Adaptive Control

Adaptive control algorithms permit the welding system to vary some of its parameters depending on the welding conditions. Such conditions may involve alteration in material, its thickness, surface features or other external factors which may interact with the welding procedure.

Conclusion

Robot laser welding is a dominant technique in fabrication that unlike any other procedure, requires maximum control and regulation in order to achieve the desired results. DP Laser's robotic welding machines have been integrated with the latest technologies and control systems to preset the level of accuracy and repeatability the factories of today expect. Through the use of vision systems or force feedback along with adaptive control, robot laser welding reaches a new dimension of precision which exceeds the capabilities of any conventional welding technique which makes the use of such a technique necessary for high caliber manufacturing purposes.