Tag Archives: blind rivet

How a Blind Rivet Works?

blind rivetA blind rivet consists of two parts, a hollow, cylindrical body with a flared head and a solid-rod mandrel with a bulbed head that resembles a nail.

The body of the blind rivet is inserted in a hole in the materials to be joined or the blind rivet is placed into an installation tool, and then inserted into the application.

Activate the tool by squeezing the trigger in an air/hydraulic tool or the handles in a manual tool. The tool pulls the mandrel, drawing the mandrel head into the blind end of the rivet body. This action forms an upset head on the rivet body and securely clamps the application materials together.

The mandrel then reaches its predetermined break-load and will snap, with the spent portion of the mandrel breaking away and being removed from the “set” blind rivet.

Blind rivets are available in a range of body styles such as open, closed-end, and multi-grip, with head styles in button, countersunk and large flange and in materials such as aluminum, steel, copper, plastic and stainless steel.

Fast, easy-to-use blind rivets offer speed of assembly, consistent mechanical performance, and excellent installed appearance, making blind riveting a reliable and economical assembly method.

Visit the Blind Rivets & Rivet Tool section of tannerbolt.com.

5 Tips for Using Blind Rivets Effectively

Fastening with blind rivets can be a cost-efficient method for fastening… some tips are

 

#1. The shear and tensile strength of the blind rivet selected and the number of blind rivets used in the application should equal or exceed the joint strength requirements.

#2. The blind rivet body material should be compatible with the materials to be joined to resist galvanic corrosion that may result in a reduction of joint strength. If dissimilar materials are widely separated on the galvanic chart, it is advisable to separate them with a dielectric material such as paint or other coatings.

#3. The total thickness of materials to be joined must be considered. Select the rivet “grip range” which includes the total thickness of materials to be joined.

#4. Use recommended hole sizes for each blind rivet. An undersized hole will not allow insertion of rivet body and an oversize hole may cause rivet failure, joint failure and could adversely affect rivet shear and tensile strengths.

#5. Various head styles are offered to accommodate different assembly needs. The most popular is the button head, whose lower-profile head is twice the diameter of the rivet body. This provides an adequate bearing surface for nearly all applications. The large flange rivet provides a greater bearing surface for fastening soft or brittle facing materials. The countersunk head rivet is available for applications where a flush appearance is required.

Visit the Blind Rivets section of tannerbolt.com.