Define the various properties and constraints that ensure weldability/joinability.

Listed Below

Explanation:

Weldability which is also known as joinability is defined as the ease with which  a material can be welded without producing any other effect .

Some factors which affect weldability are

1.Melting point of metal

Higher the melting point lower will be the weldability.

2.Thermal conductivity

Materials with higher thermal conductivity are difficult to join.

3.Reactivity

If the material reacts with surroundings like water or air, it is difficult to weld.

4.Coefficient of thermal expansion(α)

Higher the thermal expansion lower will be the weldability.

5.Surface condition

The material with dirty surface is difficult to weld for example if a surface has oxide layer on it it become difficult to weld it.