How to connect carbon fiber tubes?

Apply adhesive to the contact surface of the carbon fiber tube and other parts for pressure curing. It should be noted that the dirt and dust on the surface need to be cleaned before bonding. If there are special requirements, the surface can be corroded with chemicals, increasing the roughness and area. This connection method is mainly used in parts with relatively small load transmission and can obtain a smooth aerodynamic shape. It can be used for the connection of different materials, without galvanic corrosion problems, good sealing and reduction, and high connection efficiency. The disadvantages are that it cannot be disassembled, the glue has aging problems, poor anti-peeling ability, and cannot transmit large loads. The carbon fiber wheelchair accessories shown below are glued.

The mechanical connection methods of carbon fiber include rivet connection and threaded connection, among which threaded connection can be divided into bolt connection, set screw connection, screw connection, etc. This method can transmit large loads, has good resistance to peeling, allows for disassembly and reassembly, is less affected by the environment, and has no residual stress generated during the curing of the adhesive. The disadvantage of this connection method is that it will increase weight and concentrate stress.