Flat welding position
Flat welding position is a horizontal welding technique where the weld pool surface is horizontal. This position promotes even penetration and improves the formation of the weld metal.
Physicochemical Mechanism of Action
The flat welding position allows optimal cooling of the weld seam, as it facilitates contact with the air. This prevents the weld metal from spreading and promotes uniform deformation.
Metallurgical Relevance & Risks in Welding
In this position, there is a lower risk of hot cracking, since cooling of the weld is more controlled. However, too rapid cooling can lead to a glass-hard structure, which increases hardness and reduces toughness.
Workshop Practice & Instructions
For flat welding position, use a welding table or a pan with a flat surface. Ensure the weld pool area is well covered and air circulation is optimized. Cool the weld slowly to achieve a uniform structure.