Question

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

Answer 1

Answer:

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.