Types of m iscellaneous imperfections: Stray arc (arc strike) Local damage to the surface of the parent metal adjacent to the weld, r...

Types of Imperfect Shapes and Dimensions : Undercut An irregular groove at the toe of a run in the parent metal or previously deposit...

Flat Position (PA). Welding position in which the welding is horizontal with the centreline of the weld vertical. Horizontal...

Crack is imperfection produced by a local rupture in the solid state, which may arise from the effect of cooling or stresses. Cracks are ...

Definitions: Imperfection Any deviation from the ideal weld. Defect          An unacceptable imperfection. BS EN ISO 6520-1 standard ...

Cavities , is imperfection formed by entrapped gas, and also caused by shrinkage during solidification. Types of cavities: Gas Pore  ...

Lack of fusion is lack of union between the weld metal and the parent metal or between the successive layers of weld metal. Types of lack ...

Solid inclusions is solid foreign substances trapped in the weld metal. Types of solid inclusions: Slag inclusions Slag trapped duri...

ASME 's product certification programs have grown dramatically. Starting with just two countries in the years prior to 1972, there are...

Open Square Butt Preparation Used for welding thin components from one or both sides. If the root gap is zero (ie if components are in c...