The main reason for choosing laser welding instead of TIG welding is that the former has a significant reduction in process cycle time because the laser's welding speed is three times higher than that of TIG, from 1.2 m / min to 3.5 m / min. When using 3.2 kW laser Power welding thickness of 1.2 mm material, the speed is nearly 3 times faster. In addition, the use of laser to ensure that the power completely covered the entire length of the welding, it will not occur at the end of the pipe due to power on / off and reduce the quality of the situation.

Weil Engineering has also developed an additional function for catalytic converters called "reflow". Since the starting point of the laser welding is stronger than the end point, this method facilitates rugged welding at both ends. The principle is that the welding is carried out in one direction and the welding is stopped at a total length of 3/4 of the weld. The welding torch continues to run to the end of the pipe at zero power and then begins to reverse the welding and will eventually be slightly welded Of the partial overlap. By using "reflow", the pipe will have better resistance to fracture in the case of expansion.

And another great advantage of using a laser is the ability to switch the laser power to another welding machine at the time of loading and unloading. This can not only use the power of the laser almost 100%, but also by reducing the investment by sharing power between the two devices.

Another advantage of using laser is the ability to weld all the material, including coated metal, such as electroplated or aluminized steel. This gives Eberspaecher the company's flexibility to face the future of the project. Moreover, the laser welding of the weld can be enhanced by annealing to deal with the upcoming expansion of the pipe after welding. One of the major drawbacks of laser welding compared to TIG welding is its high initial purchase price and relatively high operating costs. However, with the laser system, although its sales price is about 30% higher than the TIG system, but its production capacity is 80% higher than the TIG system, and the quality of the end of the tube higher. The TRUMPF CO2 laser used in the system is proven in thousands of cutting and welding applications and is a rugged product. In addition, the laser can be integrated into the system at a reasonable cost, and the safety facilities it requires are as simple as the arc welding process.