Characteristics and application scope of various rivet connection methods：

1. Ordinary riveting

Ordinary riveting process is simple, the method is mature, the connection strength is stable and reliable, and the application range is wide. The connector is deformed greatly.

Ordinary riveting is widely used in various components and parts of the airframe. Among them, semi-circular head and flat cone head rivets are used to connect the internal mechanism of the airframe and the outer skin with low aerodynamic shape requirements, countersunk head riveting is mainly used to connect the outer skin with high aerodynamic shape requirements, and large flat round head rivets are used to connect the skin with low aerodynamic shape requirements and the fuel tank compartment.

2. Sealing riveting

The characteristic of sealing riveting is that it can eliminate structural gaps and block leakage paths. The process is complicated, and the laying of sealing materials should be carried out under certain construction temperature and humidity.

It is used to seal the required parts and structures into the integral fuel tank, airtight cockpit, etc.

3. Special riveting

High riveting efficiency and simple operation; Can adapt to the special requirements of the structure; Rivet structure is complex, the manufacturing cost is high, the application scope is narrow, and the riveting fault is not easy to eliminate.

It can be used for parts with special structural requirements, and can also be used for repairing and troubleshooting.

4. Interference fit

It has long fatigue life and can seal the nail hole, which fundamentally improves the riveting quality. However, the precision of rivet hole is high, and the matching clearance between nail and Conde is strict before riveting.

Used for components and parts with high fatigue resistance or sealing requirements.

5. Hand riveting method

Simple tools, convenient operation and low efficiency.

Sometimes used for small components, pallet nuts and double countersunk riveting.

6. Impact riveting method

Suitable for all kinds of riveting structures, even closed and complicated structures, riveting fashion accessories can be in various positions and States; Compared with pressure riveting, it has poor quality stability, low efficiency and high noise.

It is used for riveting ordinary rivets, riveting ring groove rivets and riveting high shear rivets. 7. Positive riveting method

Compared with the reverse riveting method, the riveting deformation is small, the skin surface quality is good, the labor intensity is high, the efficiency is low, and the application scope is limited by the structure.

It is used for countersunk riveting and interference fit riveting of common rivets with high quality requirements for skin surface.

7. The riveting method

Wide application range, light top handle (relative to the quality of positive riveting top handle), which can make parts stick together, and the riveting deformation is large, and there will be local subsidence around the rivet head in serious cases.

It is mainly suitable for sealing riveting of closed parts of the structure and coated with sealant.

8. Riveting method

Simple operation and high efficiency, but the riveting quality is not stable enough.

It is used for single-sided riveting, such as riveted ring groove rivet, threaded core-pulling high shear rivet, threaded hollow rivet, drawn core-pulling rivet, bulging core-pulling rivet and so on.

9. Riveting method

The nail rod can be upset evenly to fill the nail hole, with stable quality, good surface quality, high efficiency and good working conditions. Its application scope is limited by the structure. Due to the continuous improvement of hand-held riveting machine and riveting die, its application scope is expanding.

It is used for flat taper rivet riveting and countersunk riveting of components with good openness (such as ribs, frames, beams, panels, etc.).

10. Automatic drilling riveting method

Riveting has high quality, high efficiency, good working conditions, complicated equipment and expensive price.

It is suitable for interference fit riveting of headless rivets, riveting of upsetting rivets and riveting of core-pulling rivets. It is also used for riveting ordinary rivets.

11. Stress wave riveting method

In the riveting process, rivet materials flow synchronously in all directions, that is, the filling of rivet holes and the formation of rivet heads are completed synchronously, so that a relatively uniform interference can be formed. Its fatigue life is equal to or higher than that of riveting with interference fit of headless rivet. When riveting, there is no need to finish machining holes and a large-tonnage riveting machine, and the workpiece deformation is small. However, the equipment is complicated, the service life is short, the noise is high, and the application is not convenient enough.

Riveting titanium alloy, high-temperature alloy, alloy steel rivets and large-diameter rivets which are difficult to form by hand, and riveting carbon fiber epoxy composites can also be used for interference fit riveting with high fatigue resistance.

12. Hot riveting method

Upsetting is easy to form, not easy to crack, better than cold riveting, and more complicated tools and equipment. Used for riveting titanium alloy rivets.