This topic describes methods of joining parts together to form assemblies which
provide useful mechanical functions. At its most basic level joining can include such
wonderfully simple methods as sewing(with cotton thread ), paper clips, press studs, zips, buttons,
shoe laces. A responsible engineer should consider all options when brain storming for
fastener solutions. Again joining processes include bricks and mortar, wood joints, wood pegs,
fitting used to assemble kitchen and bedroom funiture.
Certain early boats i.e coracles are assembled by weaving twigs to form the frame which is covered by animal
skins fastened using stitched (sewed) joints. These craft are still used with great
success in many areas of the UK.
Historically wooden pegs (dowels) and adhesives are probably among the first engineered
joint technologies used by man as used for wooden structures, vehicles, and water borne
craft. Mechanical structures which are hundreds of years old are still to
be found which have been assembled using these methods. ( Water wheels).
The cast iron bridge at Ironbridge in Shropshire UK was mainly assembled using dove-tailed
Metal rivets have been used for nearly along as metal has been used by man.
Body armour is often assembled using rivets. Riveting hast been the most important
joining technology for metals, until the introduction of welding. In recent times
since the start of the twentieth century welding has been the most important joining process
for metal structures, vehicles and ships.
For machines and structures which have to be assembled and disassembled, fasteners using screw
threads are the most important components. These include pipe connection, screws,
Initially engineering joining methods can be broadly classified into two main groups.
2) Non-permanent based on removable fasteners
Typical members of each group are included in the following lists
Press Fit joints
Notes on welding are to be found on webpages.....
Notes on Rivets are to be found on webpages.....
Notes on Adhesives are to be found on webpages....Adhesives
Notes on bolts and screws are to be found on webpages.....
Notes on keyways are to be found on webpages.....
Notes on Pins are to be found on webpages.....
Cotter Pins...Taper Pins
Notes on Circlips are to be found on webpages.....