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Procedure Qualification for Dissimilar Welds

The procedure qualification for dissimilar welding checks the dilution behavior of different metals in the weld metal. This ensures a sound and homogeneous joint.

Physical-chemical mechanism of action

Procedure qualification for dissimilar welding examines how different metals mix during welding. This includes analyzing diffusion processes and reactions between the metals.

Metallurgical relevance & risks in welding

Improper mixing can lead to uneven stresses, porosity, and lack of toughness. This increases the risk of cracking and reduces the joint's service life.

Workshop practice & instructions

For a successful procedure qualification, it's crucial to use the correct welding parameters (temperature, pressure, time). It's recommended to run a specific test for every new combination of metals to ensure optimal mixing behavior.

MetallurgieSchweißtechnik

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