A method and apparatus for preparing edges of reels of web material, where a reel is held with its axis horizontal; a manipulator applies a first adhesive element on an outer surface of the reel; a gripping member picks up the first adhesive element and forms a loop; and a cutting device transversely cuts the web material at the loop. A section of web material with a length equal to or greater than a circumference of the reel is unwound from the reel; a second adhesive element is applied on an outer surface or on an inner surface of the web material; and a scrap portion of the web material is cut and discarded by a suction device.

A method for joining two objects by anchoring an insert portion provided on a first object in an opening provided on a second object. The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces of the insert portion and the wall of the opening. During the step of inserting the insert portion in the opening and/or during anchorage a clamping force is applied to opposing surfaces of the second object to prevent the second object from cracking or bulging.

A sandwich component comprising: (i) a first main surface with a first cover layer and a second main surface with a second cover layer, the first cover layer and/or second cover layer having an opening, weakening, or marking in a lateral region and/or is provided with the same, (ii) at least one intermediate layer positioned between the first and second cover layers, and (iii) a polymer composition which is arranged between the first and the second cover layers substantially within the intermediate layer and/or in the region of the opening, weakening, or marking. A mechanical connection mechanism is fixed, or can be fixed, directly in the polymer composition through the first cover layer and/or the second cover layer and/or in the lateral region in the region of the opening, weakening, or marking so as to pass through the first cover layer and/or the second cover layer and/or the lateral region.

An FRP reinforcing member configured to be used by being attached to an FRP molded body is provided with a plurality of laminated fiber layers being integrated with a resin. An FRP connecting structure includes FRP molded bodies being connected to each other or an FRP molded body and a member made of a material different from the FRP being connected to each other, by a bolt or a rivet. The FRP reinforcing member is attached to the FRP molded body so as to cover a periphery of a bolt hole or a rivet hole of the FRP molded body. An FRP molded body includes a recess or a hole formed on a surface. The FRP reinforcing member is mounted to the FRP molded body so as to cover an opening of the recess or the hole. An FRP reinforcing member producing method includes charging a plurality of fiber layers composed of glass fibers, carbon fibers, or aramid fibers and a resin into a mold, pressing the plurality of fiber layers and the resin at 300° C. or less for 60 minutes or less, and removing a load pressure, cooling, and then demolding after the pressing.

A flight control surface comprising a main body comprising an upper and lower cover, upper and lower skins and a core member, a prolongation of their length over the length of the core member defining a stepped area. A trailing edge of the control surface comprises a U-shaped profile enclosing the prolongation, the U-shaped profile extending towards the main body in the chordwise direction up to the stepped area and comprising a section that progressively decreases. The trailing edge comprises a first and a second set of rivets located in the prolongation, the first set of rivets joining the upper and lower covers and the second set of rivets joining the U-shaped profile, the upper covers and the lower covers.

A flight control surface comprising a main body comprising an upper and lower cover, upper and lower skins and a core member, a prolongation of their length over the length of the core member defining a stepped area. A trailing edge of the control surface comprises a U-shaped profile enclosing the prolongation, the U-shaped profile extending towards the main body in the chordwise direction up to the stepped area and comprising a section that progressively decreases. The trailing edge comprises a first and a second set of rivets located in the prolongation, the first set of rivets joining the upper and lower covers and the second set of rivets joining the U-shaped profile, the upper covers and the lower covers.

A mechanical part configured to be placed under torque. The mechanical part includes an inner tube having, a corrugated web, and an outer shell. The inner tube has an outer tube circumference, a tube axial direction, and a tube length. The corrugated web has a plurality of peaks and a plurality of troughs, a height measured as a difference between one of the peaks and one of the troughs, and a web length perpendicular to the height and in the tube axial direction. The outer shell has an inner shell circumference, an outer shell circumference, and a shell length. The plurality of troughs is affixed to the outer circumference of the inner tube. The plurality of peaks is affixed to the inner shell circumference of the outer shell. The web length is aligned with the tube length and the shell length.

A method for joining two objects by anchoring an insert portion provided on one of the objects in an opening provided on the other one of the objects. The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces of the insert portion and the wall of the opening. Before such liquefaction and interpenetration, an interference fit is established in which such opposite surfaces are pressed against each other, and, for the anchoring, mechanical vibration energy and possibly a shearing force are applied, wherein the shearing force puts a shear stress on the interference fit.

There are provided a synthetic resin joined body and a method of manufacturing the same, with which it is possible to secure both of sealing performance of a fluid passage and joint strength between synthetic resin parts, even if an area of a portion to be welded is reduced. The synthetic resin joined body includes: a baffle plate; an oil passage forming member which comes in contact with the baffle plate; an oil passage which is formed between the baffle plate and the oil passage forming member and through which lubricant flows; a sealing portion which is formed by welding the baffle plate and the oil passage forming member to each other on an outer side of the oil passage to seal a periphery of the oil passage; and a joint portion for joining the baffle plate and the oil passage forming member to each other.

A ultrasonic welding method of joining dissimilar-material workpieces, such as sheet materials, and the joined components formed thereby. The method includes applying ultrasonic energy to a thermoplastic piece to fill a hole of a dissimilar piece to form a weld point that is made up with polymer from the thermoplastic piece. In general, the geometry of the thermoplastic piece is not altered during the process. The dissimilar piece generally has a higher melting temperate and can be metal, thermoset polymers, or other thermoplastic material. The welded pieces can be arranged in a lap, laminate, or double lap configuration. In some embodiments, the hole of the dissimilar sheet material includes undercut features that improve the mechanical interlock between the dissimilar pieces. In some embodiments, the weld point has a mushroom cap to improve mechanical interlock.