Joint preparation geometry
The groove shape is the geometric contour of the sheet edges that are mechanically machined before welding. It influences the behavior of the molten material and the quality of the seam.
Physico-chemical mechanism of action
The groove shape determines how the molten material behaves in the contact area. A well-shaped groove facilitates the fluidity of the melt and improves feed to the weld point.
Metallurgical relevance & welding risks
A poorly shaped groove can lead to porosity, uneven stress relief, and lack of fusion. This increases the risk of cracks and reduces the strength of the seam.
Workshop practice & instructions
The groove shape should be formed precisely according to standards. For steel sheets, a shape with an angle of 60-75 degrees is recommended. Machining methods such as cutting, rounding, or pressing must be carried out precisely to achieve the desired groove shape.