NT wrote:
Another one to play with:


There are 2 main types of '''Rivet'''
* Solid metal rivet, fitted by hammering
* blind hollow rivet

Most rivets used in DIY are the latter type. They're inserted using a
riveter. Access is only needed to one side of the hole.

==Blind rivets==
Riveters
* plier type, most common, squeeze the handles
* lazy tongue, push/pull action

Material
* Most rivets are aluminium
* Steel rivets are also available, but (why_not_used_much)

Steel rivets are used extensively in the aerospace industry and are
usually mono monometal and coated with cadmium plate. Mono metal so as
not to confuse the compass and the coationg to prevent difering metal
corrosion.

Size
* various widths
* asstd lengths, mainly standard and long
* assortment packs are popular

Rivets are sized in metric values, but are the old imperial diameters
due, I think, to the very strong opposition to metric by the USA.
So a 2.4 mm is really 3/32" nds, a 3.2 mm is a 1/8 th and so on up to
quarter inch (these are usually pulled by a pneumatic gun, as the rivet
goes with a big bang when the stem snaps.)
The stems come in two styles. The first is a break head where the rivet
retains the bulbous end that swells the tail and the other type is known
as break head, where the bulbous bit snaps off and has to be removed to
prvent vobration damage to an enclosed area.

Head types
* lost head - the head comes away
* the other one, leaves no hole

Is that what I have just described above?

There are a further 2 types of steel and aluminium rivet that are set
from just one side.
The first is called a Chobert rivet and is set with a re usable mandrel
being pulled through it and a solid pin can be hammered into it, to
retain the swolen shape.
The second type is called an Avdel rivet, which like the pop rivet comes
its own mandrel. These two types, the average DIY'er will not come into
contact with because of the specialised setting tools required.

Removal:
* drill the rivet
* or cut the head off with flush cutting wirecutters


==Solid rivets==
Solid rivets are inserted into the hole and hammered flat, with the
workpiece resting on an anvil or similar. This is a much slower
process than blind riveting, and requires access to both sides of the
hole. The method has been in use for many centuries. These rivets are
usually copper or steel.

The final appearance is a flat disc or a domed head.


==See Also==
* [[Special:Allpages|Wiki Contents]]
* [[Special:Categories|Wiki Subject Categories]]



[[Category:Metal]]
[[Category:Fixings]]


NT