Rivet
What Is Rivet?
A rivet is a popular mechanical fastener to join two or more materials. A rivet consists of a head at one end and a cylindrical body at the other end, called its shaft. The tapered end of the shaft is called the rivet's tail. The tail looks like a metal pin. Rivets are used to join large structural pieces and small electronic assemblies. The shafts are hollow with another internal piece called a mandrel. The mandrel allows the riveter to deform the tail of the rivet without striking it directly.
Advantages of Rivet
Rivets are strong
One of the primary advantages of rivets is that they are very strong. This makes them ideal for various applications, including construction, automotive, and aerospace. Rivets can withstand a great deal of force, making them much less likely to fail than other fasteners.
Rivets are durable
Another advantage of rivets is that they are very durable. Unlike screws and nails, which can loosen over time, rivets will remain securely in place for the product’s life. This makes them ideal for use in applications with a high degree of durability.
Rivets are easy to install
Another advantage of rivets is that they are very easy to install. Rivets can be installed quickly and easily with just a few tools, making them ideal for various applications. Additionally, rivets do not require special installation skills or training, making them accessible to many users.
Rivets are inexpensive
Another advantage of rivets is that they are very inexpensive. Rivets are made from steel or aluminum, both relatively inexpensive materials. Additionally, rivets can be reused multiple times, reducing their cost.
Rivets have a wide range of applications
One final advantage of rivets is that they have a wide range of applications. Rivets can be used in various industries, including construction, automotive, and aerospace. Additionally, rivets can be used for both structural and non-structural applications.
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Types of Rivet
Blind rivets (also known as hollow or pop rivets)
These are used when it isn't possible to see the other side of a join. This type of riveting is very fast to apply and is used in a variety of sectors including aerospace, shipbuilding and electronics.
Drive rivets
This type of blind rivet has a short mandrel which protrudes from the head and is driven in with a hammer causing the end inserted into the hole to flare.
Flush rivet
Used for external surfaces to provide a good appearance and eliminate aerodynamic drag, this type of rivet uses countersunk heads and a countersunk hole and are also called countersunk rivets.
Friction-lock rivet
Available as countersunk or dome shaped, these early forms of blind rivet where the first to be widely used in aerospace applications these rivets resemble an expanding bolt.
Oscar rivets
Similar to blind rivets, Oscar rivets have splits along the hollow shaft. These splits, which usually come in sets of three cause the shaft to bend and flare outwards as the mandrel is drawn into the rivet. The flare creates a wide surface which reduces the chance of the rivet being pulled out.
Self-piercing rivets
These rivets do not need a drill or punched hole as the end includes a chamfered poke to pierce materials to be joined. Self-piercing rivets go through the top sheet of material but do not fully pierce the bottom sheet, creating a water or gas-tight joint.
Solid rivets (also known as round head rivets)
A technique that goes back to the Bronze Age, making this one of the oldest and also one of the most reliable types of fasteners.
Structural steel rivets
This type of rivet was widely used to join structural steels, but has been largely replaced by the use of high-strength bolts as they do not require skilled workers to install and tighten these bolts.
First, a hole is drilled or punched in the materials to be connected. The rivet is inserted between both holes. The tail is then upset or bucked (deformed) by mechanical force using a hammer or rivet gun. The tail then expands to around 1.5 times the original diameter of the shaft, holding the rivet in place between both materials. The deformation smashes the tail, making it flatter, resulting in a dumbbell-shaped rivet. The original head of the rivet is called the 'factory head,' and the deformed end is called the 'buck-tail.'A rivet can support tension on each end of the structure. The permanently formed heads at both ends prevent the rivet from detaching from the drilled hole. The rivet shaft prevents any radial movements. Rivets are designed for permanent joints similar to welding or structural adhesives. But, contrary to welded connections, rivets resist vibrations and secure joints better.
Step 1: You need to determine the suitable rivet for your parts. It would be best to consider factors such as the ideal rivet material, type, and size to do this successfully.
Step 2: The next step is determining where to install the rivet on your parts. It will help to ensure the efficient joining of the materials or components.
Step 3: You must drill a hole precisely 1.5 mm more than the rivet diameter you want to install.
Step 4: Insert your rivet in the hole drilled through the materials you want to join together.
Step 5: When you install the rivet, the tail/shank comes out at the opposite end of the part where you will deform it.
Step 6: Once you hammer the tail, it flattens the material making the tail spread about one and a half its actual size. More importantly, ensure the rivet's bottom is identical to the workpieces to complete the riveted joint.
Application of Rivet
Construction/joints
Rivets are famous in the area of construction due to the high efficiency they provide. They are reliable fasteners that facilitate the joining ease of various parts of a structure or machine. You can use a rivet joint for connecting any wooden and metal material. These rivets enable the joining of different wooden facilities, such as lockers, cabinets, and shelves.
Automotive industry
The automotive industry has a diverse use for rivets. Manufacturers in this sector use these fasteners to assemble chassis components, body panels, and several other parts. It is primarily utilized in fastening materials of different properties, such as steel and aluminum. In addition, rivets have excellent resistance to vibration and fatigue, facilitating impressive high-strength application benefits.
Jewelry industry
Expert and rising jewelry producers adopt riveting as a cold joining method in their various operations. Jewelry manufacturers utilize riveting to efficiently perform cold connections using basic metal forming capabilities, specific instructional videos, and some standard tools. Many fabricators have turned to riveting as it allows them to join metallic pieces without compulsorily using the soldering technique.
Aerospace industry
Manufacturers in this sector often use solid, long-lasting, and reliable materials in machining different projects. As a result, riveting is an essential technique in constructing aircraft, they facilitate solid alignment and forming of solid parts. Additionally, rivets connect aluminum alloys because of their low compatibility with the soldering technique.
Sports
Manufacturers have extensive use for rivets in the sports equipment industry. They use rivets in joining components like skateboards, bicycle frames, and ski bindings. Rivets are ideal for these applications due to their high strength and durability.
Rivet pin
The pin is the main body of the rivet which will slot through the pieces of material being joined together.
Rivet head
The rivet head acts as a stopper on one side of the fixed materials.The head will sit on the outside of the material to stop the rivet from sliding out of the material.
Rivet mandrel
The mandrel is slotted into the rivet gun when being fastened. The rivet gun pulls the mandrel part-way through the pin (body) of the rivet, deforming the pin to form a second head, and then snapping off the mandrel.
Rivet mandrel head
The mandrel head expands the body of the rivet then leaves itself buried inside the rivet, creating a second head to secure and fasten the pieces being joined.
Material of Rivet
Steel
Steels with low carbon properties are suitable for rivets applications. This is due to its ability to clinch or fit well in its application. In addition, it is highly flexible and adaptive compared to rigid high carbon steel rivets. Rivets made with high carbon steels require more material while their moldability decreases.
01
Stainless Steel
The stainless steel rivets are considerably hard, strong, and withstand deterioration. These are the kind of rivets for locomotive, aircraft, and power-producing industries. These stainless rivets are employed for their ability to resist corrosion.
02
Aluminum
Aluminum is another metal variant with a renowned usage for rivets and fasteners. It is recognized for its tenderness and its lightweight attribute. Aluminum material offers a strong deterioration resistance, and it is suitable for several applications. Furthermore, aluminum is quite malleable; hence, it allows you to create complex part configurations easily.
03
Brass
Brass is a flexible, low-friction, and supple material. It has quite a fascinating resistance to tarnish and equally high strength. As a result of its properties, Brass cannot create sparks. These attributes render brass rivets the most suitable kind in gas appliances.
04
Copper
Copper is a flexible material, both in its appearance and applications. It has a remarkable ability to conduct heat and electricity. Copper material is a great conductor of electricity, making copper rivets most preferred in water and electrical appliances.
05
Manual riveting pliers
This is a fully manual operation and is suitable for light riveting tasks. They install rivets and form rivet heads using a manually operated lever principle. Such as assembling small hardware.
Hydraulic riveting tools
Hydraulic riveting tools use hydraulic force to push the rivet and form the rivet head on the other side. These tools are typically used to handle larger diameter rivets or in applications requiring greater strength.
Pneumatic riveting tools
These tools use air pressure to install rivets. They are faster than hand tools and are generally used extensively in production environments.
Electric riveting tool
This is a tool that uses electrodynamic principles and is generally faster and easier to operate than hand tools. They can be plug-in or battery-operated.
Automated riveting equipment
In some high-volume production lines, automated riveting equipment may be used. These equipment can automatically handle the riveting process and improve production efficiency. Such as in-mold riveting, we will learn more about in-mold riveting below in the article.
Adaptability of materials. The rivet should be compatible with the material of the plate to be connected to ensure the strength and stability of the connection.
Selection of diameter and length. The diameter and length of the rod need to be selected according to the thickness of the plate to be connected and other relevant factors to ensure that the rivet can pass through the plate to be connected and securely fixed on the other side.
Choice of head shape. The shape of the rivet head should be adapted to the shape of the connected plate to ensure that there is good contact and connection effect between the rivet and the connected plate.
Surface treatment of rivets. The surface treatment of rivets has a great impact on their corrosion resistance and fatigue resistance, and common surface treatments include galvanizing, chrome plating, etc.
Precautions for Using a Rivet
Material selection
The materials of rivets and connectors should be matched to ensure the stability and reliability of the connection.
Selection of installation methods
Different connectors and application scenarios need to choose different installation methods, including single-sided riveting method, double-sided riveting method, etc.
Rivet length
The length of the rivet should be slightly longer than the thickness of the connector to fully penetrate the connector and leave a certain margin to ensure the bearing capacity of the connection.
Perpendicularity and clearance
When riveting, you need to pay attention to the verticality of the rivet insertion and the gap between the rivet and the connector. If the verticality is not enough, it will affect the bearing capacity of the rivet. If the gap is too large, the rivet will not be able to connect the connection securely.
Nail handle pulling force
When installing rivets, you need to leave enough nail handle length to pull out the nail handle with a tool. Excessive pull-out force or incomplete nail extraction will cause the nail handle to break in the connector, thus affecting the stability of the connection.
Our Factroy
Shuifu Hanyang Machinery Technology Co., Ltd. is a company specializing in high-strength fasteners, hardware accessories, mechanical parts and other products, integrating production, sales, and research and development. It operates in the spirit of "operating with integrity and advocating standards" concept, give full play to regional and industrial advantages, serve customers around the world, and provide professional fastener connection solutions.
FAQ
We're professional rivet manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale cheap rivet from our factory.
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