Pass sequence schematic
A plan that specifies the exact position of each weld bead in the joint cross-section. This ensures a reproducible microstructure and stable mechanical properties.
Physicochemical Mechanism of Action
The layer build-up plan defines the placement and size of the weld bead in the groove cross-section. This influences the structure by determining how much metal forms in which form (e.g., copper or steel grain) during cooling.
Metallurgical Relevance & Welding Risks
An incorrect layer build-up can lead to uneven mechanical properties, such as varying hardness or yield strength. This increases the risk of cracking and failure under load.
Workshop Practice & Action Guidelines
When welding, it is crucial to follow the layer build-up plan exactly. This means each weld bead must be placed at the specified position and the correct size maintained. When in doubt about applying the plan, always consider the specific materials and processes.