Metalwork Riveting

Riveting Materials Rivets are available in different materials such as: mild steel aluminium copper brass

Riveting Materials Those are the most commonly riveted materials and if possible it is advisable to use rivets of the same material as the parts being joined.

Riveting Riveting is a permanent joining process in which the rivet is passed through holes in the parts to be joined.

Riveting Hello

Riveting Part of the rivet projects beyond the face of the part being joined and it is then formed to particular shapes usually with the use of a hammer and former preventing it from being removed.

Riveting Rivets A rivet is a mechanical fastener consisting of a smooth cylindrical shaft with a head on one end; the head is larger than the diameter of the hole into which the rivet will be placed.

Riveting Hello

Riveting Rivets

Riveting Rivets Rivets are classified according to their: Head Shape Material Diameter Length

Rivets can be worked in either the hot or cold state. Riveting Rivets Rivets can be worked in either the hot or cold state. An advantage of using hot rivets is that they contract on cooling therefore forming a tighter joint.

These rivets are used in the joining of light work. Riveting Pop Rivets These rivets are used in the joining of light work.

Riveting Pop Riveting

Riveting Pop Rivets With this rivet the second head is formed by drawing a pin with a head through the rivet.

Riveting Pop Rivets

Riveting Pop Rivets This results in the enlarging of the end of the rivet and as the drawing continues the pin breaks leaving the pin behind.

Riveting Pop Rivets

Riveting Pop Rivets The main advantage of this type of riveting is that it can be carried out when only one side of the joint is accessible.

Riveting Pop Riveting

Riveting Pop Riveter

Riveting Pop Riveter

Riveting Rivet Snap This is used for finishing off a snap head rivet after it has been roughly shaped with a ball pein hammer.

Riveting Rivet Snap

Riveting Rivet Snap

Riveting Bolster This is used to support the snap head of a rivet while a head is being formed on the other end, it can be held in the vice while the procedure is being carried out.

Riveting Bolster

Riveting Bolster

This is used to force the parts together before riveting. Rivet Set This is used to force the parts together before riveting.

Riveting Rivet Set

Riveting Combined Snap and Set

Riveting Procedure When more than one rivet is being used in a joint all of the required holes should be drilled in one of the parts first and only one hole should be drilled in the other part.

Riveting Procedure

Riveting Procedure The reason for this is that one rivet can be formed holding the two parts together and enabling the drilling of the holes in the second piece by passing the drill bit though the first set of holes drilled.

Riveting Procedure This guarantees quite a high level of accuracy as all of the holes will be in line with each other.

The following steps should be followed when forming a snap head rivet: Riveting Forming a Snap Head The following steps should be followed when forming a snap head rivet:

Riveting Forming a Snap Head

Riveting Forming a Snap Head 1. A specific length of the rivet must be allowed project beyond the 2 parts to be joined, the length should be 1.5 times the diameter of the rivet.

Riveting Forming a Snap Head

Riveting Forming a Snap Head 2. The rivet must be supported adequately before the process begins i.e. if the rivet has a performed snap head it should be supported by a bolster.

Riveting Forming a Snap Head

Riveting Forming a Snap Head 3. The parts should now be forced together by a rivet set. 4. The protruding part of the rivet is now roughly formed to shape using a ball pein hammer.

Riveting Forming a Snap Head

Riveting Forming a Snap Head

Riveting Forming a Snap Head 5. The rivet snap is then used to complete the head of the rivet.

Riveting Forming a Snap Head

Forming a Countersunk Head Riveting Forming a Countersunk Head The following steps should be followed when forming a countersunk head rivet:

Forming a Countersunk Head Riveting Forming a Countersunk Head

Forming a Countersunk Head Riveting Forming a Countersunk Head 1. For a countersunk head rivet to be formed a countersunk hole must be drilled in the part it is to be formed into.

Forming a Countersunk Head Riveting Forming a Countersunk Head

Forming a Countersunk Head Riveting Forming a Countersunk Head 2. The length of the rivets shaft that must be allowed to project beyond the parts being joined should be equal to the diameter of the rivet.

Forming a Countersunk Head Riveting Forming a Countersunk Head

Forming a Countersunk Head Riveting Forming a Countersunk Head 3. The rivet must be supported adequately before the process begins. 4. The parts should now be forced together by a rivet set.

Forming a Countersunk Head Riveting Forming a Countersunk Head

Forming a Countersunk Head Riveting Forming a Countersunk Head

Forming a Countersunk Head Riveting Forming a Countersunk Head 5. The protruding part of the rivet is now widened and fills the countersink using the ball pein hammer.

Forming a Countersunk Head Riveting Forming a Countersunk Head

Forming a Countersunk Head Riveting Forming a Countersunk Head 6. Any excess material remaining on the surface of the joint can be removed by filing.

Forming a Countersunk Head Riveting Forming a Countersunk Head

Riveting Safety Always ensure that the rivet head has been formed correctly and there are no sharp edges left on any of the joints.

Riveting Safety When using a bolster always ensure that it is held securely in the vice.

Riveting Safety When drilling holes for rivets always remember the safety rules which apply to drilling:

Riveting Safety Never put hands near moving parts. No loose clothing or long hair. Make that the drill bit and work are held securely. Always wear eye protection. Do not leave the key in the chuck.