The Ultimate Guide to Rivet: Worth Everyone Reading

For many decades, rivets have been the unsung heroes of the manufacturing industry. Before the widespread of brazing and welding, the rivet was the go-to fastener used in heavy industries. It is used in many industries in the building of bridges, skyscrapers, ships, airplanes, automobiles, and buildings. The fastening of materials together in these industries is referred to as riveting. However, riveting is not the most popular form of fastening in the industry at the moment, but it is widely used in the modern-day. As a result of its usage, it is very important to have a glimpse of everything about rivets and riveting. This guide provides the most detailed information about rivets and riveting for reference purposes.

CHAPTER 1:
River Basic Information

This section is all about creating a clear picture of what a rivet is. Also, it contains information about rivet’s function, how it works, and the benefits of rivets as a fastening tool.

1.1 Rivet Definition: What is a rivet?

The word rivet as a verb means to keep something stationary or secure in a place. From this definition, we can derive the contextual meaning of what a rivet does. Therefore, rivets are permanent mechanical fasteners with a head at one end and a cylindrical stem on another end used to join two pieces of material together.

In the process of installing, the rivet is placed in a drilled or punched hole while the tail is bucked or upset. This is done so that there is an expansion to about 1.5 times the original shaft diameter to prevent the rivet from falling off. Also, rivets are preferred to bolts in most cases where installers only have access to one side of a material. As a result of this, the application of rivets in manufacturing industries becomes wider.

1.2 The Function of A Rivet

Rivets are used in a wide variety of industries in the manufacturing space. This is because they can support tension loads and are best suited to support shear loads that are perpendicular to their axes. As mentioned earlier, they are ideal in a situation where workers cannot access the other side of the material. This is evident in wall fastening and tubing. This is evident in wall fastening and tubing.

1.3 What Materials Are Rivets Made Of?

Rivets are manufactured in different forms and are also made of different materials. Rivets can be classified based on the type of materials they are made of. They include metal and plastic.

Metal Rivets

Metal Rivets are made to achieve high strength joints in a wide variety of materials such as metals, plastics, leather, and woods. To achieve this aim, rivets must meet the minimum material requirements. Therefore, metal rivets are available in many material forms, including:

• Aluminum
• Copper
• Monel
• Steel
• Stainless Steel

Plastic Rivets

Plastic Rivets are manufacture to achieve high strength joints in materials such as plastic, wood, and many more. They are applicable in consumer appliances, automotive, furniture, and consumer electronics. Plastic rivets are made up of materials including:

• Low-Density Polyethylene (LDPE)
• Polypropylene (PP)
• Nylon
• Acetal
• Polysulfone

CHAPTER 2:
Advantages and Disadvantages When Using A Rivet

Riveted connections are used widely in the manufacturing industries. Their usage is advantageous and it also comes with demerits. However, the demerits can be avoided if the rules of riveting are strictly followed.

2.1 Advantages

Increase in Production Output

Considering the use of welding to join materials together, it requires the preparation of both pieces to be connected. This process takes quite a lot of equipment to weld two materials together. Consequently, production cost increases and daily productivity reduces. On the other hand, riveting takes much lesser equipment and negligible waste residue are left after riveting. This then leads to cost reduction and an increase in production output.

Cost-Effectiveness

The use of rivets is cheap as an alternative to metal adhesives and welding. In its use, the cost of electricity required in large amounts of welding is saved. The use of special material for the connections is not required, unlike welding that requires hot metal adhesives.

Design Flexibility

Rivets are produced in varieties of structures and shapes based on the need of the use. They are also available in various forms of materials. With the existence of brazier head, oval head, and tubular rivets designs they offer different tolerance values and strength.

Durability

Rivets are highly durable. They are resistant to moisture, corrosion, and even certain chemicals. Examples used in the construction industries are resistant metals and alloys including galvanized steel, titanium, aluminum, nickel, and more. The anti-corrosive properties of rivets add to the life of fastened parts.

Ease of Inspection & Maintenance

Inspection and maintenance of welded structures are time-consuming compare to riveted structures. In the case of welded structures, it has to be installed over again when worn out. On the other hand, worn-out rivets can be re-installed with minimum equipment like a simple hammer or a hydraulic riveting machine.

2.2 Disadvantages

The use of rivets is highly durable but it comes with some disadvantages. They include:

• More workforce may be required
• Increased in structurer weights in case of metal parts fastening
• Lack of aesthetic finish compared to welded structures
• Riveted Joints are permanent and are difficult to remove once placed
• There may be potential corrosion issues if the riveted material differs from the rivet’s materials

CHAPTER 3:
Common Types Of Rivets

Rivets exist in varieties of forms and can be classified based on material, function, and shape. These forms include the blind, countersunk, drive, flush, friction-lock, Oscar, self-pierce, semi-tubular, standard solid/round head, and many more.

The standard, blind rivet, and countersunk rivet are the most popular forms of rivets used today. When a smooth exterior is not necessary for aesthetics or when a surface won’t fit against another, the standard type is used. The use of countersunk rivet type requires a smooth exterior on flat surfaces. And lastly, when only one side of the materials to be used can’t be accessed, then the blind rivet is used.

3.1 Blind rivets (also referred to as a pop or hollow rivets)

This type of rivets are popular and are widely used because they are ideal in a situation where riveters have no access to the second side of the materials. For this type of rivet, it may require predrilling of a hole to house the rivets. However, some blind rivets do not require predrilling of holes they are self-tapping rivets, speed fastening rivets, and self-drilling rivets. Blind or pop rivets have a wide application in shipbuilding, aerospace, and electronic industries.

3.2 Solid Rivet

This type of rivets is one of the oldest rivets in the industry. They are incredibly strong and are considered to be one of the most tamper-proof as well as vibration resistant rivets in existence. This type requires heating the fastener for installation. They are made of several ranges of materials including, steel, stainless steel, brass, bronze, aluminum, copper, nickel-silver, and many more. As a result of their strength, solid rivets have applications in structural steel buildings.

3.3 Drive Rivets

This type of rivets is installed by driving the center pin into the rivet’s body with the use of a hammer. This is done to cause the other end of the rivet to flare out to fasten the materials together. They have a short mandrel that protrudes from the head. Drive rivets exist in different varieties, they include:

• Universal Head Drive Rivets
• Brazier Head Drive Rivets
• Countersunk Head Drive Rivets

3.4 Threaded Inserts and rivet nuts

The threaded Inserts and rivet nuts are used when installations are required to be done or possible from one side. They help to provide uniquely strong permanent thread via sheet materials and other materials. Example of Threaded Inserts and rivet nuts include:

• Pull-up Stud
• Self-Clinching Hardware
• Open End Rivet Nut
• Full Hex Rivet Nut
• Half Hex Rivet Nut
• Thin Nut
• Flash Nut

3.5 Split Rivets

This type of rivets has a wider application outside of the heavy construction industry. It is an ideal rivet for piecing through softer material including leather, plastic, and woods. The split legs of split rivets are bent to hold materials together.

3.6 Self-Piercing Rivets

Self-piercing rivets are a type of rivet that requires no pre-drill or punched hole. The end of self-piercing rivets comes with a chamfered poke that is used to pierce materials to fastened together. An interesting thing about self-piercing rivets is that they piece through the top sheet of material but they don’t fully pierce to the other side of the sheet. In essence, they do not come out on the other side of the material. As a result, they create gas or watertight joints since they don’t fully pierce to the bottom of the fastened materials.

3.7 Structural Steel Rivets

These structure steel rivets were widely used in those days to fasten structural steel. Recently, they have been replaced largely with the use of high-strength bolts. This is because the installation of such high strength bolts can be done by anybody as opposed to the installation of structurer steel rivets that requires skilled workers.

3.8 Oscar Rivets

Oscar rivets are somehow similar to the blind rivets. They possess split along the hollow shaft and are usually in sets of three. The split causes the shaft to bend and flare towards as the mandrel is pulled into the rivet. The flare helps to create a wide surface that allows for a reduction of the chances of being pulled out after installation.

3.9 Flush Rivet

This type of rivets is otherwise known as countersunk rivets because they use the countersunk head and a countersunk hole for their installation. The flush rivets are used to provide an impressive appearance for eternal surfaces. They are also used to eliminate aerodynamic drag.

3.10 Friction-Lock Rivets

The friction-lock rivets have a resemblance to an expanding bolt. They are one of the first types of rivets to be used widely in an aerospace application. In structure, they exist as domed shaped or countersunk shaped.

3.11 Plastic Rivets

Plastic rivets are classified based on the type of materials used for their production. They are used widely in the manufacture of consumer electronics, appliances, and many more. The type of plastic rivets to be used depends on the properties of the materials the rivets are meant to join. They exist in varieties of types including:

• Push Rivets
• Rachet Rivets (Ideal for consumer appliance, and electronics, automotive construction, and furniture)
• Snap Rivets (Ideal for consumer electronics, retail, and signage)
• Three or Four Prong – Non-Pre-Driven Rivets (Ideal for consumer appliance, and electronics, construction, and furniture)
• Fir Tree Rivets (Ideal for furniture)
• Countersunk Plastic Rivets

CHAPTER 4:
The Applications Of Rivets

Because of its powerful functions and small size, rivets are widely used in various fields and products in life. The following are the common application of rivets:

Aircraft Construction

Aircraft are manufactured from solid strong materials. If these heavy-duty materials are not well fastened together, they may fall apart and cause a serious accident. In this construction, bolting, welding, and brazing are used. However, riveting is a vital process in the construction of an aircraft, and it is widely used too. The end goal of using riveting is to achieve the strongest union of parts that are joined together. In the aircraft industry, it is most commonly used to fasten aluminum alloys together because they are not easy to solder. Another reason for its use is because, during repairs, it may not always be possible to reach the rear end of the structure being fastened. In this situation, riveting becomes more essential and useful.

Building Construction

If a closer look is given to the buildings around us, inside and out, one may see some rivets around it. Rivets are widely used in building construction such as fiberglass roofing, window blinds, and hanger straps. Other construction applications include doors and window installations, wind guards, gutter construction, and many more. Riveting is effective in a situation where nails are not effective in attaching metal sheets.

Ceiling & Wall Decoration and Signs

Riveting is ideal in attaching signs, nameplates, or decoration to walls or ceilings of a building. This is because you can only have access to a side of the ceiling or a wall. Examples include the attachment of Christmas lanterns, ornamental objects, photo frames, framed paintings, and any other type of decorations to ceilings and walls.

Jewelry

Both amateurs and professional jewelry makers make use of riveting as a cold connection method. This gives jewelry makers the ease to fasten metal pieces together without the use of heat or soldering techniques. It allows for the addition of depth and texture to jewelry made. Riveting helps to save time and cost in jewelry making because its technique is very basic and easy to master.

Woodworking Project

Riveting is commonly used in woodworking projects. Riveting is often the most superior option in woodworking projects. With their durability and strength, they help to ensure studier finished products, which allows furniture to be fastened together for a longer period. Rivets are used in products including wooden shelves, stands, lockers, cabinets, drawer pulls, handles, and doorknobs.

HVAC Installation

Rivets are widely used in HVAC installations. It is useful in fastening HVAC ducts to ensure that all field joints are airtight. It can be done by drilling rivet holes using different drill sizes as required through both layers of ducting. Then pop rivets with pins are used to assemble the ducts. Rivets are used most times because sheet metal screws may catch a piece of wood and can eventually clog the system. Also, the velocity of the air in the duct along with wood dust may wear out the screw over time. Then the screws will fall out causing the pipe to fall off if not efficiently supported.

Consumer Electronics & Appliances

Rivets have a wide application in electronic too. Here the plastic rivets are used. These plastic rivets are used to fasten soft materials such as plastic, rubber, and urethane covering of electronics. An example of its usage can be found in computers and panels.

CHAPTER 5:
How To Choose The Right Rivet?

Choosing the right rivet for your project is very important for the success of your projects. The following are the factors to consider to ensure the right rivets are used.

Diameter & Hole Size

The diameter of the rivet to be used is crucial for a successful riveting. If the diameter is too small for its hole then the gap in the hole can cause installation problems and also increase shear stress. If care is not taken, over time the hole may be penetrable by the rivet head. In a bid to resolve this, it is required to measure the hole size properly and avoid using unfit rivet in the hole.

Grip Range

The grip range of a rivet is referred to as the thickness it can be effectively fastened. For example, if two quarter-inch parts of materials are to be fastened, a pop rivet with a minimum grip of half-inch grip is required. Best practice of riveting dictates that the optimum grip size of a rivet is used and not the minimum/maximum grip size. The result of this is to achieve tensile and shear strength and imposes longevity on the parts fastened.

Body Length

The length of the body is the total length of the rivet excluding the head of the rivet. The body length of a rivet is very important when the blind side of the fastener material is considered. This is because too long rive may negatively affect whatever is placed on the other side of the fastener material.

Head Size

The head size of the rivet is considered to ensure an increase in aesthetic value, effective protrusion, and to determine the integrity of riveting. Dome head rivets stay above the fastened materials while large flange rivets help to cover more areas. This allows for providing more fastening capabilities by covering more areas.

CHAPTER 6:
How To Install And Remove The Rivets

In this chapter, I will briefly write about the issues that many people care about: How to install rivets and how to remove rivets.

How To Install Rivets?

There are several ways of installing a rivet. The method to be used in rivet installation depends on the type of rivet to be installed. In this case, we will describe how to install a solid rivet. This type of rivet is composed of a solid tube with a head that resembles a flat screw. The following are the required tool and the few steps involved in the installation of a solid rivet:

Required tools:

• Chalk or Marker
• Rivet
• Diameter drill bit
• Air hammer

Steps:

• Properly line up your piece for installation
• With the use of marker or chalk, mark out the rivet holes
• Drill the rivet holes through the pieces
• Insert the rivet into the rivet holes
• Use the air hammer to hammer the end of the rivet flat onto the metal surface
• Repeat the above process for subsequent rivet installation
• Check for a tight fit to avoid the fastened rivet from loosing or moving around

How To Remove A Rivet?

The removal of a rivet requires permanent destruction of the rivet because it is non-reusable thereafter. The easiest method for the removal of a rivet is to drill it out.

Required tools:

• Punch
• Hammer
• Drill bit
• Safety glass

Steps:

• Put a divot in the rivet’s head with a punch
• Neatly attach a perfectly fit drill bit into the divot head
• Lubricate the end of the drill bit for friction reduction
• Use your safety glass before starting the drilling process
• At the center of the rivet, place the drill bit against the divot
• Drill through the rivet at a low but steady speed
• Pull the rivet via the surface with the drill until the rivet is removed completely

CHAPTER 7:

F.A.Q Of Rivets

Summary

Rivets offer supreme fastening capabilities for both heavy-duty and light applications. With its usage for many decades, they are found in sheet-material assemblies to submarines to aircraft and many more. At this juncture, it is evident that rivets are very important and as well as crucial in fastening processes. Irrespective of the rivet type needed for your project, be assured that your project will end up as a successful one. For more information, do well to contact us.