Puddle Welding Portable Direct

A continuous weld pours heat into a concentrated line. On thin, corroded, or dissimilar metals, that heat causes warping, burn-through, or crack propagation. Each stationary puddle, by contrast, dumps heat into a small area and then stops. The surrounding metal acts as a heat sink, cooling the puddle rapidly.

Dip filler (or let the electrode burn) until the puddle swells slightly above the surface. For stick, this happens automatically — just hold still.

You will blow through. You will curse. You will grind off the bird droppings. puddle welding

Break the arc cleanly. The puddle should freeze with a flat or slightly convex crown.

Place the next puddle so that it covers 30-50% of the previous one. For a hole, start at the edge and spiral inward. A continuous weld pours heat into a concentrated line

The name evokes something primitive: melting metal into a liquid pool and letting it be . No weaves, no stringers, no travel angle. Just a puddle. And in that puddle lies an entire philosophy of repair. Let’s clear up a core confusion. In professional welding terminology, “puddle” usually refers to the weld pool — the localized zone of molten metal during any arc or gas process. But in field slang, puddle welding means something specific: a technique for filling large, irregular holes, gaps, or worn surfaces by depositing overlapping, stationary “puddles” of weld metal, often with little to no joint preparation.

Hold the arc in one spot. Watch the base metal melt into a shiny liquid circle. Do not move. The surrounding metal acts as a heat sink,

In the 1930s–50s, many steel bridges and industrial structures used as a repair for corroded gusset plates. The American Railway Engineering Association had a standard for “puddle welding of fatigue cracks” — essentially depositing small, overlapping beads to arrest crack growth without heat-straightening the member.