Available with either countersunk or protruding heads, lockbolts are permanent type fasteners assemblies and consist of a pin and a collar. In general, a lockbolt is a nonexpanding fastener that has either a collar swaged into annular locking groves on the pin shank or a type of threaded collar to lock it in place. Their one piece design means no foreign object damage (FOD), it has a 600 ☏ allowable temperature, and a very low backside profile.Īlso pioneered in the 1940s, the lockbolt is a two-piece fastener that combines the features of a high strength bolt and a rivet with advantages over each. Theses fasteners are functionally interchangeable with comparable 6AI-4V titanium alloy two-piece shear fasteners, but with a number of advantages. The CherryBUCK® is a bimetallic, one-piece fastener that combines a 95 KSI shear strength shank with a ductile, titanium-columbium tail. Hi-Lite® fasteners can be replaced with Hi-Lok® fasteners for most applications, but Hi-Loks® cannot be replaced with Hi-Lites®. Size The third section of the code designates the size. Applications, where only one side is accessible, require 'blind' rivets. First, to our list of rivets is a Solid rivet. Solid rivets are driven using a hydraulically, pneumatically, or electromagnetically actuated squeezing tool or even a handheld hammer. There will be more on special rivets in later sections. There are several types of rivets, each with its own application and design. 73 ASMG is a truss head Aluminium Steel Multi-Grip. The Hi-Lite® collars are also different and thus are not interchangeable with Hi-Lok® collars. BLIND RIVETS RIVET HANDBOOK PAGE 10 5b Types of Blind Rivets In the case of special types of rivet, the material code may be combined with another features, eg. 3.1 Solid Shank Rivets The traditional rivet, also known as a solid shank rivet (Figure3.11), is the most widely used in aircraft construction. The rivets themselves come in many different shapes, sizes, and designs depending on the application. Solid Rivets: Most solid rivets are made of aluminum so that the shop head can be cold formed by bucking it with a pneumatic hammer. 3.Types of Rivets As stated above, rivets are a solid fastener which must be deformed into place. From a structural design aspect the most important rivets are the solid and blind rivets. These differences reduce the weight of the Hi-Lite® fastener without lessening the shear strength, but the Hi-Lite® clamping forces are less than that of a Hi-Lok® fastener. The general types of rivets are solid, blind, tubular, and metal piercing (including split rivets). In order to investigate the relationship between squeeze force and the ratio of D/d (d is the diameter of rivet before riveting and D is the diameter of rivet after riveting), Skorupa et al.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |