What is a Longitudinal Crack in Welding?

A longitudinal crack is a type of welding defect that occurs when the weld metal cools and contracts.

What causes longitudinal cracking welding?

This can happen if the weld metal is not properly supported or if it is not properly cooled.
Longitudinal cracks can also occur if the weld bead is too small.

Longitudinal cracks are often difficult to detect because they are hidden by the welded metal. However, they can be detected by using a magnifying glass or a microscope. Longitudinal cracks can be repaired by welding over the cracked area.

What are the types of cracks in welding?

There are 3 main types of cracks in welding:

Longitudinal cracks.
Transverse cracks.
Underbead cracks.

Longitudinal cracks are the most common type of welding crack. They occur when the weld metal cools and contracts. Longitudinal cracks can be repaired by welding over the cracked area.

What are longitudinal welds?

A longitudinal weld is a type of weld that runs along the length of a metal plate. Longitudinal welds are used to join two pieces of metal together.

What is the difference between longitudinal and transverse cracks?

Longitudinal cracks occur when the weld metal cools and contracts. Transverse cracks occur when the metal is stressed during welding. Underbead cracks occur when the weld metal does not properly penetrate the metal plate.