Unit 2

Rivets

Are permanent joints in metals. There are two kinds of rivets, solid rivets and pop rivets. Solid rivets are manufactured from soft iron because they need to be ductile and easy to work as they have to be hammered into shape.

Pop rivets are usually manufactured from aluminium and, instead of being hammered into shape, are fixed into place using a pop rivet gun.

Examples: Countersunk rivet, snap rivet, flat rivet, pop rivet.

Gears

Gear wheels are one part of a mechanical system that when…