Riveting

Riveting

• Riveting is the method of joining two pieces of metal together them by using a rivet, a short metal rod with a head at one end.
• Heating the rivet allows it to expand, which then contracts as it cools, pulling the two pieces of metal tightly together.
• The rivet should be heated to a bright orange before it is placed into the aligned holes of the metal pieces.
• When the rivet has reached the proper temperature, it is quickly placed in the hole and the unheaded end is hammered down to form a second head.
• The process must be performed quickly while the rivet is still hot and malleable.

Heat Control

• Accurate heat control is crucial in riveting as the heat allows for the expansion and contraction of the rivet.
• Overheating the rivet can weaken its structure and underheating can cause inadequate expansion and contraction, leading to a weak join.
• The colour of the rivet indicates its temperature - a bright orange suggests it is ready for riveting.

Creating a Secure Rivet

• The second head should ideally have the same shape and size as the original head for a symmetrical appearance and good strength.
• The heads should be made smooth and rounded to prevent them from catching on anything and to provide a neat appearance.
• Tools such as rivet sets and snaps can be used to shape the rivet heads.
• Ensure a sufficient amount of the rivet’s shaft is protruding before starting to form the second head, typically 1.5 times the diameter of the rivet shaft.
• Avoid over hammering as it can weaken the rivet.

Practical Applications of Riveting

• Riveting is often used in blacksmithing to create a permanent joint between two pieces of metal.
• It is popular in ornamental ironwork, construction, and in manufacturing where welding or bolting is not practical or desirable.
• Riveting is a fundamental technique to master in blacksmithing as it is often used in combination with other techniques to create functional and decorative items.