摘要:
A method and system for installing a fastener. A fastener installation system comprises a fastener, a cooling system, and a tool. The fastener may have a top portion including a dielectric material. The cooling system may be configured to cool the top portion of the fastener to stiffen the top portion. The tool may be configured to install the fastener in a structure after cooling.
摘要:
The invention relates to an assembly comprising first and second parts made of composite material and held against each other by at least one fastener system comprising a rivet having a flat head from which there extends a shank having an enlarged end, and a washer co-operating with the enlarged end of the shank of the rivet, the head of the rivet bearing against a countersink formed in the first part, the washer bearing against the second part. On its face remote from its face bearing against the second part, the washer presents a portion of conical shape. The washer also has a central countersink with the enlarged end of the shank of the rivet pressing thereagainst.
摘要:
A method for the attachment of the fastener element to a workpiece with the aid of a washer and also a die button are described. The fastener element has a flange of larger diameter, a rivet section of smaller diameter which extends away from the flange and a workpiece contact surface at the side of the flange adjacent the rivet section. The die button is provided to receive a washer and has a central post the end face of which lies at least substantially flush with the side of the washer adjacent to the workpiece. The non-pre-pierced workpiece is pierced by the said end face of the central post and the free end of the rivet section and the rivet section of the fastener element is subsequently deformed to form a rivet bead. Moreover, a die button and a combination of a die button with a washer are claimed.
摘要:
A punch rivet for fastening individual components to one another of which at least one component is formed by a workpiece of composite material, with the punch rivet having a flange of larger diameter, a rivet section of smaller diameter and a ring-like component contact surface at the side of the flange adjacent the rivet section and surrounding the rivet section, with the rivet section having at its free end a ring surface for the piercing of the two workpieces which stands at least substantially perpendicular to the central longitudinal axis of the punch rivet and an inner concave ring surface which forms the transition from the end of the punch rivet into the hollow internal space of the rivet section. Ribs extending parallel to the longitudinal axis are provided at the generally cylindrical outer surface of the rivet section and preferably extend up to the free end face of the rivet section. In addition, a method is claimed.
摘要:
The invention relates to an assembly comprising first and second parts made of composite material and held against each other by at least one fastener system comprising a rivet having a flat head from which there extends a shank having an enlarged end, and a washer co-operating with the enlarged end of the shank of the rivet, the head of the rivet bearing against a countersink formed in the first part, the washer bearing against the second part. On its face remote from its face bearing against the second part, the washer presents a portion of conical shape. The washer also has a central countersink with the enlarged end of the shank of the rivet pressing thereagainst.
摘要:
A fastener is configured to assemble parts of composite materials. The fastener includes a head; a sleeve including a first section including a first inner diameter, and a second section including a second inner diameter, the second inner diameter being less than the first inner diameter, the second section being between the first section and the head. The fastener also includes an insert inside the sleeve.
摘要:
The invention relates to a riveting element (R) for riveting parts which are made from composite materials (M1 and M2) and provided with a through-hole. The invention is characterized in that it consists of: a hollow bushing (200) including, at one end, a head (210) bearing on the surface of one of the parts to be assembled and a hollow rod (220); and a semi-tubular insert (100) including a first end (110) capable of being inserted into the hollow part of the bushing (200) and an open end (130) capable of deforming in order to form an enlarged base that bears on the surface of the other part that is to be assembled once the insert (100) is translatably locked inside the bushing (200). The invention also relates to the installation tool configured for one such element.
摘要:
A method for assembling a part of a metal material and a part of a composite material, the junction of the two parts being achieved through a fastener having a substantially constant section and received in a first hole formed in the part of a metal material and a second hole formed in the part of a composite material. According to the disclosed embodiments and before assembling the aforementioned parts, the method includes: an expansion step for generating a field of compression stresses at the periphery of the first hole and locally in the material constituting the part of a metal material using an expansion tool; a single boring step for making the first hole and the second hole with a diameter Øfinal substantially larger than the diameter of the fastener in order to leave a gap between the inner walls of the holes and the outer surface of the fastener; and an assembling step for placing the fastener inside the holes for maintaining together the metal part and the composite part.
摘要:
A method of joining parts together with a self-piercing rivet that is inserted through a part and partially through a second part. The second part includes a fiber-filled layer and a resin matrix layer that together form a composite part. A self-piercing rivet extends into the second part, but does not penetrate completely through the matrix layer. An assembly, including a first part and a second part that includes a reinforced layer and a resin layer in which a fastener is inserted, but does not extend through the second layer. A composite part including a first layer of resin matrix reinforces the filler and a second layer of resin matrix that does not include a filler and is more than 3 microns thick.
摘要:
A tool configured to join at least two material layers, of which at least one material layer is in the form of a metal material layer, by a pin. The tool includes a driving-in device which drives the pin through the at least two material layers to be joined, and a welding device which, after the driving-in of the pin, welds at least one first section of the pin to the at least one metal material layer.