Types of Welds

From the Configuration point of view

Butt Weld

It consist 3 types of joints

Butt Joint

T Joint

Corner Joint

Fillet Weld

Autogenous weld

A fusion weld made without filler metal which can be achieved by TIG, plasma, electron beam, laser or oxy-fuel gas welding.

Slot weld

A joint between two overlapping components made by depositing a fillet weld round the periphery of a hole in one component so as to join it to the surface of the other component exposed through the hole

Plug weld

A weld made by filling a hole in one component of a work piece with filler metal so as to join it to the surface of an overlapping component exposed through the hole (the hole can be circular or oval).

From the penetration point of view

Full penetration weld

A welded joint where the weld metal fully penetrates the joint with complete root fusion, In US the preferred term is complete joint penetration weld (CJP) (see AWS D1.1.).

Partial penetration weld

A welded joint without full penetration, In US the preferred term is partial joint penetration weld (PJP).