Geometric Shape Imperfections

This article looks at those imperfections related to poor geometric shape and will concentrate on the following: Excess weld metal   ...

Read more »

Root Concavity - Suck Back

A shallow groove that may occur in the root of a butt weld. Common causes Root concavity is caused by shrinkage of the weld pool in t...

Read more »

Excessive Penetration

Excess weld metal protruding through the root of a fusion (butt) weld made from one side only. With pipe welding this type of imperfection ...

Read more »

Linear Misalignment (High-Low)

Linear Misalignment also known in the USA as high-low. This imperfection relates to deviations from the correct position/alignment of the j...

Read more »

Geometric Shape Imperfections - Excess weld metal

Excess weld metal (also called cap height, overfill or reinforcement) Fig.1. Excess weld metal This is weld metal lying outside the p...

Read more »

Hydrogen Cracks

Hydrogen cracking may also be called cold cracking or delayed cracking. The principal distinguishing feature of this type of crack is that ...

Read more »

Solidification Cracks

A crack may be defined as a local discontinuity produced by a fracture which can arise from the stresses generated on cooling or acting on ...

Read more »

Slag inclusions

The characteristic features and principal causes of slag imperfections are described Identification Slag is normally seen as elongated li...

Read more »

Welding Process V-5

Arc Length Faults There's some detailed information including a video demonstrating the effect of arc length on the learning arc wel...

Read more »