our locations
    GSI – Gesellschaft für Schweißtechnik international mbH
    SLV – Schweißtechnische Lehr- und Versuchsanstalten
    Schweißtechnik - WeiterbildungschweißenSchweißtechnik Indrustrie

    Laser technology

    From many years of close cooperation with users, jobbing companies and machine manufacturers, comprehensive know-how relating to laser technology is at your disposal. Thus, we offer you individual and standardised available ranges of development services relating to laser technology.

    - From process development or parameter optimisation via the joinability of materials right up to support in situ with or without the training of the operating personnel. Everything from one source. -

    Typical laser weld
    Laser beam welding
    Laser beam fine cutting
    Laser beam fine cutting
    Laser surface treatment
    Laser surface treatment
    Laser beam soldering
    Laser beam soldering of BAV 70: 2x SMD Si diode
    Manual laser workplace
    Manual laser workplace
    • Advice about laser beam sources and machining stations
    • Process optimisation on your premises in situ
    • Manufacture of prototypes and small-scale series
    • Feasibility investigations into laser beam welding, laser beam brazing/soldering and surface treatment
    • Qualification of materials, e.g. SEP 1220‑3
    • Training and qualification of personnel, e.g. laser protection officer, also on your premises in situ


    Processes for laser beam machining 

    Laser beam welding

    • Welding of the most diverse materials (steel, aluminium alloys, nickel-based alloys and titanium) and material combinations
    • Material thicknesses from 50 µm to 2 mm with pulsed lasers, if necessary with pulse shaping
    • Material thicknesses from 0.2 mm to 10 mm with cw lasers
    • Low heat input and therefore low distortion are typical of laser beam welds
    • Narrow and slender welds
    • High welding speeds
    • Welding with and without welding filler wire


    Laser beam (fine) cutting:

    • Cutting of various materials with the cutting gases: argon, nitrogen, oxygen or helium
    • Cutting with high precision, even with very thin material thicknesses
    • Burr-free and oxide-free cut edges, depending on the cutting gas


    Laser beam surface treatment:

    • Hardening of mild and alloyed heat-treatable and tool steels
    • Remelting of cast alloys, e.g. camshafts and crankshafts
    • Remelting of thermally sprayed coats for hardfacing
    • Surface welding with filler wire as wear protection or as corrosion protection
    • Surface welding with filler wire or powder for the repair of tools


    Laser beam brazing/soldering:

    • Brazing with CuSi3 or CuAl8 for steel materials or for galvanised steel sheets
    • Brazing of nickel-based materials with silver-based brazing materials
    • Soldering of electronic components with Pb-free tin soldering pastes
    • Brazing material / solder addition as brazing/soldering wire, brazing/soldering foil or brazing/soldering paste


    Technical equipment

    Nd‑YAG laser, cw (P = 4.4 kW)

    • Robot-guided laser machining system
    • For welding, surface treatment and brazing/soldering

    Nd‑YAG laser, pulsed (P = 500 W)

    • Gantry-guided laser system with high precision
    • For welding, cutting, surface treatment and brazing/soldering 

    Nd‑YAG laser, pulsed (P = 75 W)

    • Gantry-guided laser system with high precision
    • For precision welding, fine cutting, surface treatment and microbrazing/microsoldering

    Nd‑YAG laser, pulsed (P = 50 W)

    • Manual laser workplace
    • For welding, precision welding and microbrazing/microsoldering
    • Particularly suitable for establishing the weldability of materials without delay
    • Particularly suitable for manufacturing prototypes

    Your contact

    SLV Berlin-Brandenburg
    Matthias Pöge +49 30 45001-113 E-Mail
    SK Bielefeld
    Waldemar Groeger +49 521 65045 E-Mail
    SLV Duisburg
    Karlheinz Hesse +49 203 3781-175 E-Mail
    SLV Fellbach
    Daniel Rotaru +49 711 57544-21 E-Mail
    SLV Halle
    Steffen Keitel +49 345 5246-415 E-Mail
    SLV Hannover
    Karsten Schnoy +49 511 219 62-31 E-Mail
    SLV Mannheim
    Michael Schubert +49 621 3004 122 E-Mail
    SLV München
    Michael Dey +49 89 126802-18 E-Mail
    SLV Saarbrücken
    Bernd Stiefel +49 681 58823-47 E-Mail