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Case study · White paper

Single-pass welding in wind-tower construction

How tower sections can be joined in a single pass instead of many submerged-arc passes — and what that changes in welding time, consumables and energy. Free PDF, in English or German.

What the case study covers

  • The baseline: wind-tower sections joined by multi-pass submerged-arc welding — where time, filler wire, flux and energy go.
  • The single-pass approach: laser-hybrid welding with a contactless magnetic weld pool support, through the full plate thickness in one pass.
  • Joint preparation: why a flame-cut edge is sufficient and the groove preparation can be dropped.
  • The effect: welding time, consumables, energy and CO₂ compared for the same component.
Macrograph of a WeldNova single-pass weld in 25 mm plate
Single-pass cross-section, 25 mm.

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