A method is provided for connecting a fitting to a reinforced thermoplastic duct including inserting a first end of the fitting having a plurality of barbs into an end of the duct. A clamp is installed around the duct. The duct is heated to a temperature greater than a glass transition temperature of a thermal plastic material used to form the duct. The duct is restructured to include a plurality of protrusions positioned between the plurality of barbs of the fitting.

A method is provided for connecting a fitting to a reinforced thermoplastic duct including inserting a first end of the fitting having a plurality of barbs into an end of the duct. A clamp is installed around the duct. The duct is heated to a temperature greater than a glass transition temperature of a thermal plastic material used to form the duct. The duct is restructured to include a plurality of protrusions positioned between the plurality of barbs of the fitting.

Process for forming a permanent join between two sections of fibrous material contained in a thermosetting resin matrix, said process comprising overlaying the two sections and subjecting the overlaid sections to ultrasonic welding to form a permanent join between the two sections, wherein there is no significant change in the sub-ambient Tg of the fibrous material contained in the thermosetting resin matrix in the region of the permanent join.

Process for forming a permanent join between two sections of fibrous material contained in a thermosetting resin matrix, said process comprising overlaying the two sections and subjecting the overlaid sections to ultrasonic welding to form a permanent join between the two sections, wherein there is no significant change in the sub-ambient Tg of the fibrous material contained in the thermosetting resin matrix in the region of the permanent join.

A fiber composite component assembly (100) includes a fiber composite component (3) including a base material and a fiber material, and a tolerance compensation layer (5) for joining the fiber composite component (3) to a further component (1), the tolerance compensation layer (5) including a fiber composite portion (17) and/or a further layer portion (7). A fiber composite component system (200) including a fiber composite component assembly (100) and a further component (1) joined to the fiber composite component assembly (100), as well as a method for producing a fiber composite component system (200), is also provided.

A fiber composite component assembly (100) includes a fiber composite component (3) including a base material and a fiber material, and a tolerance compensation layer (5) for joining the fiber composite component (3) to a further component (1), the tolerance compensation layer (5) including a fiber composite portion (17) and/or a further layer portion (7). A fiber composite component system (200) including a fiber composite component assembly (100) and a further component (1) joined to the fiber composite component assembly (100), as well as a method for producing a fiber composite component system (200), is also provided.

A composite product having a junction structure includes a first unit formed of a composite material, a first connector formed of a metal and provided with one end inserted into one end of the first unit and formed integrally with the first unit and another end extending outwards from the first unit, a second unit formed of a composite material, and a second connector formed of a metal and provided with one end inserted into one end of the second unit and formed integrally with the second unit and another end extending outwards from the second unit, wherein the other end of the first connector and the other end of the second connector are joined and fixed by welding under a condition that the ends of the first unit and the second unit are opposite each other adjacently.

A composite product having a junction structure includes a first unit formed of a composite material, a first connector formed of a metal and provided with one end inserted into one end of the first unit and formed integrally with the first unit and another end extending outwards from the first unit, a second unit formed of a composite material, and a second connector formed of a metal and provided with one end inserted into one end of the second unit and formed integrally with the second unit and another end extending outwards from the second unit, wherein the other end of the first connector and the other end of the second connector are joined and fixed by welding under a condition that the ends of the first unit and the second unit are opposite each other adjacently.

A method for producing a frame component for a door frame structure of an aircraft. A connecting zone is generated on a first and a second assembly surface of a connecting component in each case by generating a surface texture on the assembly surfaces, wherein the connecting component is formed from a metal material. The assembly surfaces of the connecting component are placed against a door frame member and against an attachment member, wherein the door frame member and the attachment member are each formed from a fiber-reinforced thermoplastics material. Furthermore, the connecting component and the door frame member are welded, and the connecting component and the attachment member are welded. A frame component and a door frame structure are also described.

A method for producing a frame component for a door frame structure of an aircraft. A connecting zone is generated on a first and a second assembly surface of a connecting component in each case by generating a surface texture on the assembly surfaces, wherein the connecting component is formed from a metal material. The assembly surfaces of the connecting component are placed against a door frame member and against an attachment member, wherein the door frame member and the attachment member are each formed from a fiber-reinforced thermoplastics material. Furthermore, the connecting component and the door frame member are welded, and the connecting component and the attachment member are welded. A frame component and a door frame structure are also described.