The high-performance performance of carbon fiber materials has gained very good application advantages in many fields. Many carbon fiber products need to be assembled. At this time, the assembly of carbon fiber products is required. At this time, it is related to the connection of carbon fiber products. In this article, the editor will tell you about the three methods of assembly and connection of carbon fiber products, as well as the advantages and disadvantages of these three methods of assembly and connection.
There are three ways to connect carbon fiber products: adhesive bonding, mechanical connection, and hybrid connection.
1. Bonding.
Gluing is the process of connecting carbon fiber products with metal parts through glue, and then assembling them.
advantage:
a. No machining is required, no stress will be exerted on carbon fiber products, and the overall performance and strength of the products are better.
b. Good insulation and good fatigue resistance.
c. The cousin of different materials without electrochemical corrosion, the whole shows crack expansion, and the safety is better.
shortcoming:
a. There is no way to transfer the performance advantages of large loads.
b. The adhesive connection cannot be disassembled, and the whole repair is difficult.
c. Glue has a relatively large impact and is easy to age.
2. Mechanical connection.
The way of mechanical connection is more to use machining to open holes and carry out fixed connection by means of nuts and bolts.
advantage:
a. Easy to check, high reliability, no residual stress.
b. Assembly, good maintainability.
c. Less affected by the environment.
shortcoming:
a. Higher requirements for hole making.
b. After the hole is made, the local stress concentration around the hole reduces the connection efficiency.
c. The impact of electrochemical corrosion is relatively large.
d. Hole punching may cause product performance degradation.
3. Hybrid connections.
To put it simply, hybrid connection is to apply adhesive bonding and mechanical connection together, so that the overall performance advantage is better.
advantage:
a. To prevent or delay the expansion of adhesive layer damage, improve the performance of anti-stripping, impact resistance, fatigue resistance and creep resistance;
b. In the case of sealing, shock absorption and insulation, the connection strength is further increased and the load transmission capacity is improved;
c. Isolate metal fasteners and composite materials, no electrochemical corrosion.
shortcoming:
a. Tough adhesives should be used to coordinate the deformation of the adhesive joint with the deformation of the mechanical connection as much as possible.
b. It is necessary to improve the matching precision between the fastener and the hole, otherwise it is easy to cause shear damage of the adhesive layer and reduce the connection strength.
These are the commonly used connection methods for carbon fiber products, and they are also the connection methods commonly used for carbon fiber products for assembly requirements. If there is a need for customized carbon fiber products, we will recommend the connection of carbon fiber products according to the customer’s application.
Post time: Aug-02-2023