The Cherry SST® Blind Rivet System was designed to solve many of the blind fastening problems associated with aircraft assemblies requiring superior sheet take-up. Although superseded by the locked-spindle specifications NAS 1400 and NAS 1740, Cherry® MS rivets are still widely used under MS24/05 part numbers. cherry® ms rivetsĬherry® MS self-plugging and pull-through rivets and tooling systems have been a reliable standard of the industry since their introduction. They are available in pull-through or self-plugging styles and may be installed with hand or pneumatic tools. There are no blind side or limited accessibility problems, no damage or distortion to the surrounding material or nut baskets. cherry® nut-plate rivetsĬherry® Nut-plate blind rivets are manufactured in 3/32″ and 1/8″ diameters, steel or CRES, for quickly and economically installing nut-plates to NAS M25027 requirements, with one operator. Conforms to NAS 1400 specification and NAS 1398/1399 standards pages. Wiredraw holefilling CherryLOCK® rivets offer the widest range of sizes (3/32″ through 1/4″ diameters), materials and strength levels of any blind fastening system. Conforms to NAS 1740 specification and NAS 1738/1739 standards pages. Available in 1/8″ through 3/16″ diameters, several head styles and various material strengths and combinations. The Bulbed CherryLOCK® is a high strength bulb rivet system with a visible, inspectable locking collar. Meets the requirements of MIL-F-81177 and MIL-F-8975 and is listed in QPL81177 and QPL8975. The Cherry MaxiBOLT® Blind Bolt alloy steel and A286 CRES conforms to NAS M90353/90354 and NAS M21140/21141, and Wiredraw cherrymax® ‘aB’ rivetsĬherryMAX® ‘AB’ rivets are shank expanding, locked-spindle, flush fracturing rivets meeting the requirements of NAS 1400 specification and conforming to NAS 1398/1399 ‘AB’ code standard pages, but offering non-shift tooling installation without changing pulling heads. The tools utilize one pulling head to install many diameters, head configurations and material combinations. CherryMAX® fasteners are currently available in 1/8″ through 1/4″ diameter in both nominal and 1/64″ oversize diameters. Each rivet is supplied with its own installation anvil which eliminates the problems resulting from worn anvils. CherryMAX® blind rivet system retains the large blind head of the Bulbed CherryLOCK® rivet. Grinding the head first will help, but has its risks.Bulbed CherryMAX® is a high stem retention lock spindle blind rivet with a visibly inspectable mechanical locking device. The sharp tap required can cause all sort of problems if not done right. The problem is hitting the stem hard enough to knock it through without damaging the surrounding structure. It is wise to first practice on a spare piece of material to get the pressure right.Īnything can be drilled out, but an SS stem must be knocked out first, before the rivet can be drilled, not easy. Another problem can be a stem that did not eject properly and is still hung up in the gun or the jaws not gripping the mandrel correctly. If the gun comes off while pulling, it may break prematurely. SS rivets do drill out, but when the mandrel breaks off with 1-2 mm exposed, not much fun to have to grind off mandrel then drill out.ĭavidReducing the air pressure to the minimum necessary to pull it properly and without jumping off the material will certainly help. Should I just regulate the air pressure sown to ?40psi or.? My gage built cherry max rivet guns pulls more slowly and smoothly at 90psi. Some close to the rivet head, some near the end of the mandrel that goes in to the rivet gun. Most pulled just fine, but several of the mandrels broke at various places. I am using the 12 degree angle tool I made per Mitch’s instructions. On the SS rivets for the ribs during my wing build. I’m using an older air powered rivet like this one:
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