Welding is a popular way to do this but there are a range of other methods which can also be used.
How to join sheet metal without welding.
The result is basically a really solid metal glue that can take a lot of abuse.
Then you use a braze a dissimilar metal with a lower melting point to solidly stick the two pieces together.
Other than this nano metals and adhesives can also be used to join metal pieces together without welding.
Welding is not an easy process and not everyone knows the proper way to do it.
This however leads to changes in their structure as well as their appearance.
For brazing you use a flame torch to heat up the two pieces of metal with a flux to protect it from corroding.
Researchers have now developed an alternative that is able to join aluminium alloys with each other and with polymers.
When joining metals together the usual method is welding.
It is possible to join metal pieces by methods like riveting soldering bolting or brazing.