Excess weld reinforcement
Excessive reinforcement is an unacceptably large protrusion of weld metal beyond the imagined line connecting the base material surfaces. It causes stress and can lead to cracks or destruction of the parts.
Physicochemical Mechanism of Action
Reinforcement means the cross-section of the weld metal is too large relative to the actual line connecting the part surfaces. This causes uneven stresses in the parts because the material is not loaded uniformly.
Metallurgical Relevance & Welding Risks
Reinforcement can lead to stress concentrations and cracks. Uneven loading can fatigue or even destroy the parts, especially when the material operates under high pressure or at high temperatures.
Workshop Practice & Action Guidelines
To avoid reinforcement, the weld metal dimensions must be precisely measured and maintained. The weld cross-section should always lie exactly on the connecting line. If necessary, additional machining or adjustment can be done to ensure reinforcement stays below 0.5 mm.