40 THE DISTRIBUTOR’S LINK Anthony Di Maio Anthony E. Di Maio attended Wentworth Institute and Northeastern University. In 1962 he started working with Blind Fasteners as Vice-President of Engineering & Manufacturing for two blind rivet manufacturers. He has been Chairman of the Technical Committee of the Industrial Fasteners Institute (IFI) and is still involved in the writing of IFI specifications. In 1991, he started ADM Engineering and is working with Fastener Manufacturers developing new fasteners and special machinery. He can be reached at ADM Engineering, 6 Hermon Ave., Haverhill, MA 01832; phone and fax 978-521-0277; e-mail: tdimaio@verizon.net. THE VERSATILITY OF BLIND RIVETS Blind rivet are very versatile regarding Tensile and Shear values, Head Configuration, Alloys and various designs that will solve application problems. Tensile And Shear Values Blind rivets offer a range of tensile and shear values of the set blind rivet that will satisfy the requirements of any blind rivet application. TENSILE The tensile ranges per IF1 (Industrial Fasteners Institute) specifications start at 80 Ibs, for a 3/32 diameter aluminum rivet body and aluminum mandrel Open-End rivet to 1850 lbs. for a 1/4 diameter stainless rivet body and stainless mandrel. Structural rivet. A designer has this wide range of tensile values that can be calculated into the design and requirements of the blind rivet application. SHEAR The shear ranges per IF1 start at 70 Ibs. For the 3/32 diameter aludalum Open-End rivet to 2400 Ibs. for the 1/4 diameter stainless/stainless Structural blind rivet. It should be noted that the tensile and shear values listed are minimum values. Knowing the minimum tensile and shear values of the blind rivet being used, the designer can calculate the total number of blind rivets that should be used to ensure a properly fastened application. DIAMETER Blind rivets listed in the IF1 standards book, start at 3/32 diameter up to 1/4 diameter. The different alloy combinations that are used for the Standard Open-End Blind rivets. CONTRIBUTOR ARTICLE OPEN END FIGURE 1 RIVET BODY MATERIAL MANDREL MATERIAL Aluminum 1100 Aluminum Aluminum 5050 Aluminum Aluminum 5052 Aluminum Aluminum 5154 Steel Aluminum 5052 Steel Aluminum 5056 Steel Copper 110 Steel Aluminium 5052 Stainless 400 Series Steel Steel Monel Steel Stainless 300 Series Steel Stainless 300 Series Stainless 300 Series CONTINUED ON PAGE 146
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