Catalogs >
Arconic >
Huck LockBolts

Huck LockBolts
7Pages

Catalog excerpts

Huck Tooling Systems Huck Lockbolts Huck Structural Blind Fasteners Clamp Force or Pre–Load: In the initial stages of the installation process, the tool engages and pulls on the pintail. The joint is pulled together before the conical shaped cavity of the nose assembly is forced down the collar. This progressively locks (swages) it into the grooves of the harder pin. The pin and swaged collar combine to form the installed fastener. The shear strength of structural blind fasteners is generated by the combined resistance against failure of the pin and sleeve. This takes place along the joint’s shear line between fastened plates. The squeezing action reduces the diameter of the collar, increasing its length. This in turn stretches the pin, generating a clamp force over the joint. The tensile strength of structural blind fasteners differs to that of Lockbolts, as they form a blind side positive lock either by bulbing or expanding of the sleeve. The sleeve, assisted by the permanently secured pin, therefore resists failure along its centre line. Shear strength of Lockbolts vary according to the material strength and minimal diameter of the fastener. By increasing the diameter or the grade of material, the shear strength of the fastener can be increased. Tensile Centre Line 2. Expanding – pulling on the pintail causes the head of the pin to draw into the sleeve. This expansion causes a foot print to form against the joint material. Installation Tool – Either pneumatic or hydraulic Powerig® – To supply power to hydraulic tools Additional Hose Set – Sometimes required to connect hydraulic tools to the Powerig With production resources across the globe, AFS provide engineered, high-quality, high-performance fastening systems for a variety of industrial applications. Solution Needed, Solution Provided Make our engineers part of your team at the concept stage. Their unrivalled knowledge of advanced fastener function can make the impossible possible. A standard fastener in our range may provide your answer. If not, we can produce a cost-effective tailor-made solution. Shear Line In 2000 Alcoa, the world’s leading producer of primary aluminium, fabricated aluminium and alumina became Huck’s parent company. In 2002 they acquired Fairchild Fastening Systems and joined the two fastening institutions together to create Alcoa Fastening Systems (AFS), with Huck fasteners as a branded product. Today the product range based on his original drawing of a Lockbolt now known as the HuckBolt® has evolved to include small and large diameter fasteners, medium and heavy duty blind fasteners and associated installation tooling. Nose Assembly – To match with the fastener and tool Note: The pre-load of blind rivets is generally not published, as it varies widely depending on the application Pintail For more than 60 years, the business Lou Huck founded and the fasteners he designed are still solving the problem of coping with extreme stress and vibration, providing strength and facilitating lighter, stronger, more durable structures. The basic tooling requirements to install Huck fasteners: 1. Bulbing – the sleeve of the fastener is compressed, causing it to fold outwards to form a bulb. This forms itself tightly against the joint material. Once the pin is permanently locked into place the pintail will break off, completing the installation. The tensile strength of Lockbolts is dependent on the shear resistance of the collar material and the number of grooves it fills. The Unshakeable World of Huck Fastening Systems Many different types of Huck installation tooling systems are available. Some of the most popular tools are shown below, but this is just a small part of our range. Discuss your requirements with our dedicated Systems Engineering Team to find the optimum solution to suit your need. The Huck Fastening System – Key Benefits: Pneudraulic installation tool with vacuum pintail collection bottle. Installs 4.8 & 6.4mm structural blind rivets. Centre Line Shear Line Will not loosen even under extreme vibration High speed, easy to install systems can reduce production time by 75% Maintenance free joints – no need to torque or re-torque Improves health and safety - replace welded joints Lower lifetime total cost of joint - high shear and tensile strengths for increased fatigue life of the joint Tamperproof – once installed cannot be removed without specialist tooling Breakneck groove Internal Lock Pintail-less Lockbolt after installation Lockbolt after installation Bulbing (Magna Bulb) Expanding (HuckLok) Hydraulic installation tool. Installs 14, 15.9,16 & 19.1 mm large diameter Lockbolts and 15.9 & 19.1 mm BOM structural blind rivets. Pneudraulic compact powerful installation tool with pintail bottle. Installs 4.8 & 6.4 mm small diameter Lockbolts and structural blind rivets. Lockbolt installation sequence 2 • Tool is placed over the fastener pintail and activated • Pin head pulled against material • Anvil pushes collar against joint • Initial clamp generated 3 phase electric, portable design. The Powerig can be used will all hydraulic installation tools. 4 • Pintail breaks, installation complete • Tool activated • Deforming of blind side begins • Joint tightened • Internal locking mechanism formed • Pintail breaks, installation complete Hydraulic compact installation tool; high speed & high durability. Ideal for high volume production to install 4.8 & 6.4 mm small diameter Lockbolts and structural blind rivets. Hydraulic installation with extra long stroke. Ideal for installing 9.5mm Magna-Lok and 7.9 mm Floortight. • Pin placed into prepared hole • Tool is placed over the fastener pintail Blind Fastener installation sequence Contact Alcoa Fastening Systems Telford Operations, Unit C, Stafford Park 7 Telford TF3 3BQ England Tel : +44 (0) 1952 290011 Fax : +44 (0) 1952 204670 Email : info@huckfasteners.net Web : www.afshuck.net Alcoa Fastening Systems Kelkheim Operations, Industriestr. 6 65779 Kelkheim Germany Tel : +49 (0) 6195-805-0 Fax : +49 (0) 6195-2001 HK432-2 Shown cannot install Huck-Spin or BobTail 3 • Tool swages collar, increasing clamp The Huck® Product Range Installation Sequence 1 • Pin placed into prepared hole • Collar placed over pin Will also install 7.9 and 9. 5mm Lockbolts & Structural blind rivets. Hydraulic installation tool, compact swage forward design. Installs 14 & 16 mm Huck-Spin Lockbolts. Alcoa Fastening Systems St Cosme Operations, 9 rue de Cressonnieres 72110 Saint Cosme en Varais France Tel : +33 (0) 2.43.31.41.00 Fax : +33 (0) 2.43.31.41.41 Disclaimer: The information contained in this publication is only for general guidance with regard to properties of the products shown and/or the means for selecting such products, and is not intended to create any warranty, express, implied, or statutory; all warranties are contained only in AFS’s written quotations, acknowledgments, and/or purchase orders. It is recommended that the user secure specific, up-todate data and information regarding each application and/or use of such products. AFS HA16 AUG 2008 ©2008 Alcoa Fastening Systems Ltd. All rights reserved.

Open the catalog to page 1