Weld shape

Weld shape refers weld seam geometry parameters indicated.

Said that welding butt weld seam geometry parameters has width, height and more than penetration.

1, from the surface of the weld bead width between two weld toe, called the bead width.

2, reinforcement beyond that maximum height of the weld metal of the base metal on the surface of the wires, called reinforcement. You can avoid the formation of defects when high metal bath solidification shrinkage, and increase the static load bearing capacity of the weld cross-section, but I stress concentration higher than the general or decrease the fatigue life, so to limit the size of more than high. Usually in the flat welding position over the high value should be 0 ~ 3mm, or more than a high coefficient (ratio bead width and more than high value) is greater than 4-8. When the weldment under dynamic loads or fatigue life is a major problem, post-weld reinforcement should be removed.

3, the penetration depth of the welded joint in cross section, the base metal or weld melt front-called penetration. The penetration value of certain guarantees binding strength of the weld metal and base metal. When a certain filling metal material penetration size determines the chemical composition of the weld metal.