Method of manufacturing self-pierce rivets

A rivet manufactured using a method of manufacturing self-pierce rivets from a length of wire, the method comprising:

• separating the length of wire to form a plurality of slugs, each slug defining a head end and a tail end;
• and
• forging a plurality of rivets from the slugs, each rivet having a head formed from the head end of a slug and a tip formed from the tail end of that slug, the head and the tip of the rivet being separated by a shank which defines a longitudinal axis, the rivet having a bore which runs substantially longitudinally through the tip and at least part way along the shank;
• wherein, for each of the plurality of rivets, the method comprises performing a machining operation to remove material from at least one selected from the group of an outer portion and an inner portion of the tip of the rivet, or from the tail end of the slug from which the rivet was forged.

A method of manufacturing a product, the method comprising manufacturing self-pierce rivets from a length of wire, and driving one of the rivets into a workpiece using a punch such that the rivet flares into the workpiece without fully penetrating the workpiece;

• wherein manufacturing self-pierce rivets from a length of wire comprises:
• separating the length of wire to form a plurality of slugs, each slug defining a head end and a tail end;
• and
• forging a plurality of rivets from the slugs, each rivet having a head formed from the head end of a slug and a tip formed from the tail end of that slug, the head and the tip of the rivet being separated by a shank which defines a longitudinal axis, the rivet having a bore which runs substantially longitudinally through the tip and at least part way along the shank;
• wherein, for each of the plurality of rivets, the method comprises performing a machining operation to remove material from at least one selected from the group of an outer portion and an inner portion of the tip of the rivet, or from the tail end of the slug from which the rivet was forged.

A product manufactured using a method of manufacturing a product, the method comprising manufacturing self-pierce rivets from a length of wire, and driving one of the rivets into a workpiece using a punch such that the rivet flares into the workpiece without fully penetrating the workpiece;

• wherein manufacturing self-pierce rivets from a length of wire comprises:
• separating the length of wire to form a plurality of slugs, each slug defining a head end and a tail end;
• and
• forging a plurality of rivets from the slugs, each rivet having a head formed from the head end of a slug and a tip formed from the tail end of that slug, the head and the tip of the rivet being separated by a shank which defines a longitudinal axis, the rivet having a bore which runs substantially longitudinally through the tip and at least part way along the shank;
• wherein, for each of the plurality of rivets, the method comprises performing a machining operation to remove material from at least one selected from the group of an outer portion and an inner portion of the tip of the rivet, or from the tail end of the slug from which the rivet was forged.