← Glossary

Pipe fixed horizontal-vertical position

Pipe fixed position: The pipe is fixed, and the weld runs from horizontal to overhead. Requires high skill and precise parameter adjustment.

Physicochemical Mechanism of Action

Welding in the pipe hat position needs precise control of the welding parameters, because the joint runs through different positions. This affects the stress distribution and the structure of the weld.

Metallurgical Relevance & Welding Risks

Wrong parameter settings can create stress concentrations, which cause cracks or fractures. The changing joint position raises the susceptibility to hot cracks and distortion.

Workshop Practice & Instructions

• Make sure the pipe is clamped so stress concentrations stay low.

• Match the welding parameters (temperature, pressure, time) exactly to the pipe length and diameter.

• Keep the welding head moving continuously for an even bead.

MetallurgieSchweißtechnik

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