Weld Toe
The flank is the transition area from the weld to the unaffected base material. It often forms the notch stress peak and requires the highest surface quality.
Physical-Chemical Mechanism of Action
The flank is formed by the contact between the weld material and the base material. Chemical reactions and mechanical deformations can occur here, which affect the material behavior.
Metallurgical Relevance & Welding Risks
The flank is critical for stress distribution and can lead to notch stresses. These can cause cracks or deformations in the material if they are too high. Poor surface quality of the flank can also lead to corrosion or further material changes.
Workshop Practice & Action Guidelines
To ensure a good flank, it is important to carefully control the welding process. This includes the correct selection of welding materials and processes as well as adherence to the correct temperatures and times. High surface quality of the base material is also crucial.