Laser Welding
High stability and low distortion characterize laser welding with one of our lasers. Even at high welding speeds, excellent seam surfaces can be achieved on the workpiece.
To the Video
High stability and low distortion characterize laser welding with one of our lasers. Even at high welding speeds, excellent seam surfaces can be achieved on the workpiece.
To the VideoHardly any branch of industry today can operate without laser welding, as there are metals or plastics that need to be joined in almost every manufacturing process.
Laser beam welding is the alternative to conventional welding processes.
Laser welding is ideal, especially when high welding speeds, narrow weld seams and low thermal distortion are required.
Diode lasers are used in many laser-based joining processes. A distinction is made between laser soldering, heat conduction welding, and deep welding with lasers.
Laser beam soldering generally involves melting an additional material. This filler material wets the surfaces of the components to be joined and thus joins them together after it has solidified. This process is mainly used in the automotive industry by a laser welder in combination with a robot for joining steel chassis.
Heat conduction welding and deep penetration welding, conversely, do not automatically align with any one industry or individual application. Control cabinets, sensor housings, bellows, electronic devices, batteries, sheet metal in various applications, coated and uncoated sheet metal, heat exchangers, saw blades and band saws, thick sheet metal in shipbuilding, drinking water pipes, sinks, tailored blanks, stainless steel and aluminum car bodies, beer barrels and much more are welded and joined with diode lasers.
Thanks to process-related advantages, such as high welding speeds or high degrees of automation, laser beam welding systems under EN ISO 4063 process 52 are increasingly assuming a key function in production technology. Narrow, slim, almost parallel seam flanks enable resource-saving seam preparations to be undertaken, which result in low shrinkage. The latter can also be implemented using laser-MSG hybrid welding, which combines the advantages of two different welding processes through synergistic effects. In particular, this ensures greater capabilities in terms of gap bridging, and consequently is not sensitive to tolerances in terms of the weld seam preparation.
Irrespective of the sheet thickness and component geometry, various material combinations (ranging from unalloyed and high-alloy steels to non-ferrous metals without irregularities) can undergo laser welding.
In addition to these combinations, different material pairings are becoming increasingly important in today’s application technology. The mechanical and technological properties to be fulfilled, such as for tailored blanks, are at the forefront of the joining activity in question. They correlate with the heat guidance of the process at hand, which can be influenced by special optics or the feeding-in of cold or hot wire.
What actually is the difference between laser welding and laser brazing, and what advantages do diode lasers offer in terms of metal welding?
In our video we offer some basic answers and reveals interesting examples of application.
If you have any questions or would like to learn more about applications and processes in laser welding, do not hesitate to contact us.
Ultimate system availability and process stability in three-shift operations; these are the requirements of the automotive industry, and they have been putting diode lasers to the test in all kinds of applications for years. From joining processes, such as welding or soldering, to the heat treatment of components through to the coating of press tools, lasers are the ideal welding devices for automotive production.
Remote laser welding is used with increasing frequency to attain a quicker and more flexible process control when welding vehicle chassis or ships’ sides. In this, the laser beam is directed onto the workpiece from a distance of more than one meter, meaning that this application requires a combination of high laser power and high beam quality. Laserline LDF diode lasers with beam converter are an alternative to a fiber laser welding machine. They offer an optimal system solution for this special type of keyhole welding.
For the laser-based welding of tailored blanks, shaped blanks are created from several sub sheets, which will later be transformed into car body parts. However, the process is often affected by inefficient, easily dirtied lasers that also leave unpleasant metal splashes on the sheet and welding optic. Laserline’s laser welding machines generate an extremely calm molten pool that hardly creates any spatter at all. They are also resistant to dust and moisture-intense process environments throughout the entire welding process.
