BBW Lasertechnik GmbH
Phone: (0 80 36) 9 08 20- 0
Fax: (0 80 36) 9 08 20- 28
E-Mail: info@bbw-lasertechnik.de
Gewerbering 11
83134 Prutting
Laser Welding

Laser Welding

Laser welding is one of our core competencies. With 28 laser systems, we are able to master even the most challenging lbw projects – flexibly, quickly and effectively.

High flexibility and precision with lbw

Laser beam welding (lbw) offers a wide range of advantages over conventional welding techniques. The result of the low and concentrated energy input includes low thermal distortion and minimal structural changes in the components. Plus, the energy input can be precisely controlled, which makes laser welding particularly suitable for reliable automation. With laser welding, the possibilities for welding various geometries are nearly endless. Because lbw is a contactless process, no mechanical stress is placed on the component. The use of cutting-edge beam sources make it possible to create welds that were not previously possible.

High-strength bondings with laser welding

Due to the combination of slim weld seams and weld seam depths of up to 8 mm, we can offer customers precise, high-strength welds. Our fibre lasers, diode lasers and disc lasers are among the strongest available. We also have pulsed laser systems for micro welding and heat-sensitive components. The applications of laser welding technology are practically unlimited: from batteries for e-mobility and load-bearing structures for the aerospace industry to mechatronic modules for engineering.

State-of-the-art systems engineering

Because of their inertia, fixed optics are limited in their maximum possible processing speeds. Scanner optics, however, feature two highly dynamic galvo mirrors that guide the laser beam. An F-theta optic creates a steady focal position across the entire processing field, or it can be specifically varied by a 3D scanning system. At BBW Lasertechnik, we use various scanning systems. In addition to achieving very high welding speeds of up to 30 m/min, we use a combination of single-mode lasers with the wobble technique, allowing for the homogenisation of molten material or bridging of a large gap between components. This process can achieve aluminium sheets with significantly reduced porosity, and copper joints with improved weld quality. We also have BrightlineWeld technology especially for copper welds.

Additional welding methods

In addition to laser welding, we use stud and resistance spot welding, as well as manual welding processes tungsten inert gas (TIG) and metal active gas welding (MAG), depending on the project. Our team includes certified manual welders, ensuring that even difficult-to-weld materials and difficult-to-access welding positions can be securely welded.

Technical details

Strengths

  • Challenging materials and combinations of materials
  • Development of complex clamping technology
  • From the first trial to series production
  • Use of the proper beam source for every application, including machining optics
  • Combine complete assemblies with laser welding
  • Use of extensive quality measures

Weldable thicknesses

  • Steel up to 7 mm
  • Aluminium up to 7 mm
  • Copper up to 4 mm

Special materials

  • Tantalum
  • Cobalt
  • Sintered materials
  • Precipitation hardenable steel

 

Do you have any questions? We’re happy to help!