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Can you laser welding cast iron?

Quick answer

Yes — emerging repair use; niche. Laser on cast iron: match technique to the material; filler ENiFe-CI.

· · Technical guidance compiled from trade practice and manufacturer data; our source-verification program is in progress — see our editorial policy.

The verdict and why

Emerging repair use; niche. Preheat 100–250°C, short staggered beads, peen each pass, cool slowly under a blanket — rushing it cracks the job

Watch-outs

  • grind the casting skin off, drill small stopper holes at crack ends
  • Prep: grind the casting skin off, drill small stopper holes at crack ends

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