Irregular Weld Transition
Irregular transition from weld metal to base material leads to high stresses and increases the risk of cracking.
Physicochemical Mechanism of Action
An irregular weld toe means that the chemical composition or microstructure of the weld metal deviates significantly from the base material. This can be caused by different fillers, temperature differences, or uneven stresses during the welding process.
Metallurgical Relevance & Welding Risks
An irregular weld toe intensifies local stress peaks, which can lead to cracks and transverse fractures under mechanical loading. In addition, it can promote corrosion and reduce the service life of the weld.
Workshop Practice & Instructions
To avoid irregular weld toes, make sure the weld metal and base material have a consistent composition. Ensure the welding temperature is kept constant and avoid rapid temperature changes. Use suitable shielding or filler materials to achieve a smooth transition radius.