S.No.
|
Welding
|
Soldering
|
1.
|
It is used in mechanical
industries, like automotive, aerospace etc.
|
It is used in electrical
industries.
|
2.
|
In welding, both work piece are melted
together to form a mechanical joint. Sometimes filler material is used to
make the joint.
|
In soldering, a joint is made by use
of filler material, known as solder. A rod is heated up to the melting
temperature of filler metal. This melted filler metal used to make a joint.
|
3.
|
The welding temperature is above the
melting temperature of work piece which is above3600C
|
It is done at much below
the melting temperature of work piece which is below 400C
|
4.
|
There is change in properties of work
piece.
|
There is no change in properties.
|
5.
|
It forms strong mechanical joint.
|
It forms strong electrical joint.
|
6.
|
Filler material is not compulsory.
|
Filler material is compulsory in soldering.
|
7.
|
It can withstand with high
temperature.
|
It cannot withstand with high
temperature.
|
8.
|
The work piece should be clean below
welding.
|
It is not compulsory to clean work
piece before joining.
|
9.
|
Special training is required to
perform the welding.
|
No special training is required to
perform it.
|
10.
|
Preheating of work piece is not
required.
|
Preheating of work piece is not
compulsory but it may give good result.
|
Labels: Comparison, Welding