SELF-PIERCING RIVET AND FASTENING METHOD

PROBLEM TO BE SOLVED: To provide an aluminum alloy self-piercing rivet preventing buckling at driving, and a fastening method using the self-piercing rivet. SOLUTION: This self-piercing rivet 1 is made of an aluminum alloy, and provided with a shaft portion 11 formed with a cutting edge portion 111...

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Bibliographische Detailangaben
1. Verfasser:	AONO MASAMICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS FORGE FURNACES FORGING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAMMERING HEATING LIGHTING MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PRESSING METAL PUNCHING METAL RIVETING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an aluminum alloy self-piercing rivet preventing buckling at driving, and a fastening method using the self-piercing rivet. SOLUTION: This self-piercing rivet 1 is made of an aluminum alloy, and provided with a shaft portion 11 formed with a cutting edge portion 111 having a cutting edge function in a circumferential direction at a tip end, and a head portion 12 having a hole portion (an engaging means) for rotating the rivet 1. The fastening method comprises a first step wherein the rivet 1 is held to a rotating indenter by the hole portion 121, and the rivet 1 is driven in s fastened material while rotating the rivet by the rotating indenter; and a second step wherein the rivet 1 is further driven in the fastened material after stopping the rotations of the rivet 1. Since the first step driving the rivet 1 having the cutting edge function in the circumferential direction into the fastened material while rotating, pressing force added on the rivet 1 at driving can be decreased, so that buckling of the rivet 1 is prevented.