For maximum strength and minimum corrosion, rivets should be made of materials that match the materials of the parts being joined. Combining Materialsīlind rivets are commonly made of aluminum, steel, stainless steel, Monel and copper. And installing rivets on both sides of the gap creates a rigid joint, but it is generally unnecessary. Small gaps between parts being joined are all right if both parts are supported on both sides of the gap. However, installing the rivet through both of the tube’s walls creates a weak joint.īlind rivets exert high forces when clinched, so rivets should never be set against cantilevered joint extensions. A slightly less rigid, but still satisfactory, joint can be made without flattening the cylinder. For example, when a tube is joined to a flat sheet or beam, setting the rivet against a section of tube that is flattened creates the most rigidity. This will give the finished joint its maximum strength.Īnother key to maximizing strength is to ensure parts are properly mated. If hole alignment is a problem, put a slot in the joint where it will face the setting tool and put a hole of the recommended diameter in the second, lower material. READ MORE: Blind Rivet Bolt Combines Screw and Nut for Faster Assembly These recommendations should be followed closely to get the most strength, maximum pull-up and best hole fill from the rivet. Design for StrengthĬompanies that make blind rivets usually recommend specific hole sizes for their rivets. Or designers can shorten the angled section, increase the angle and open it up, or both. Another solution is to set rivets from the unobstructed side, if there is one. In some cases, technicians can solve the problem by using a nosepiece extension it can add an inch to the setting tool’s reach. Angles and formed sections can also interfere with installation. For example, distances from walls or projections to the rivet centerline should be checked to determine if the tool will fit-that is, if enough clearance (or room) is available.Ĭlearance should also be checked if the rivets are going to be set from the inside of a channel or cylindrical section. Once the right tool is chosen, tool clearance should be the next consideration. The main issues to be resolved when selecting riveting tools include power and air pressure ratings and type of nosepiece needed. How the rivets will be installed is critical, and getting the right installation tool or setter is the first step. Here are those rules and some tips on following them. They come in a variety of sizes and are widely used in electronics, aerospace, ship building and a host of other industries.Īlthough blind rivets are fairly simple and relatively easy to install, there are four simple rules engineers should adhere to when using them in their designs. 3, 2016.īlind rivets, also called pop rivets, are commonly used to hold components together more efficiently and reliably than screws, bolts or nuts.
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