Below you’ll find answers to many questions we’re often asked. Still need some information? Still have a question of your own? Then feel free to e-mail us at info@laserknechtel.de.
Which laser welding processes do you use?
We offer pulsed laser welding and CW laser welding. More information can be found in the “Laser Welding” section.
What machines do we use to process your orders?
For laser welding, we use lamp-pumped Nd:YAG lasers (300 W) and fiber lasers (600 W or 900 W) from ALPHA LASER.
In arc welding, we work with TIG and MIG/MAG welding equipment from REHM Schweißtechnik.
For 2D inscribing and 3D engraving, we use a FOBA lamp-pumped Nd:YAG laser engraving system.
What materials can we weld for you?
We weld tool steels, stainless steels, low-alloy steels, aluminum alloys, multi-material bronzes, Ampco and Ampcoloy alloys, magnesium alloys, titanium, tantalum, platinum-rhodium alloys, gold, silver, copper, nickel alloys, steel and gray cast iron alloys.
Which differing pairs of materials can be welded?
Among others, we have done black-and-white joints (low-alloy steel with stainless steel) and copper-stainless steel joints. With deposit welding, it is possible to create functional areas on low-alloy or tool steels with certain multi-material bronzes.
Can cast iron be welded?
There’s no one answer to that. In such cases, we decide on weldability based on the variety of alloy types and qualities, the age of the component and its functionality after thorough incoming inspection and a test weld. Most components of the materials mentioned are good for joint and deposit welding Which welding process (laser, TIG, MIG/MAG) is used is evaluated and specified individually. Contact us — we’ll be happy to advise you!
Can cast steel or cast aluminum be welded?
Most components of the materials mentioned are good for joint and deposit welding Which welding process (laser, TIG, MIG/MAG) is used is evaluated and specified individually.
What materials cannot be welded with the laser process?
Die-cast zinc, magnesium, molybdenum, tungsten and brass can’t be laser-welded.
What does “mobile laser welding” mean?
We use our ALPHA LASER ALM 250 mobile laser welding device to weld at your site. This saves you expensive transport of very large components.
Can we rework (recontour) welded areas?
Our toolmakers can adjust small areas by hand. For further processing of your welded components, we can recommend partner companies nearby.
Is L & A Lasertechnik und Applikationen GmbH certified?
We work according to DIN ISO 9001:2015. This certificate is checked every year by the certification body TÜV SÜD.
What internal transport options are available at our site?
– Hall crane with trolley, capacity 3.25 t
– Electric stacker with triplex mast (1.5 t)
– Manual stacker truck (1.0 t)
– Hand pallet truck (2.5 t)
