exchemist
Valued Senior Member
Grinded?Hmm, no!
Just because it says something somewhere , that doesn't make it physically true . Riveting would be better if the plates and the rivets were both equally in a state of heated expansion .
In engineering we heat fixtures to remove stubborn fixings such as a bolt . The surrounding metal expansion allowing the bolt to become more free . Basic scientific thermodynamics .
A (T) fixing is an inner plate that is formed as a T shape . This fixing is placed between two adjoining panels from the interior , the ''leg'' facing outwards .
Then a few welding tacks are done to hold it in place
The leg is then grinded down to a flat finish from the exterior
The weld is then completed in the form of seams
For additional strength depending on requirement , rivets can be added to the over hang T-flap
-T- demo (obvious the T is flush against the plates )