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  • Understanding the Nut Factor in Threaded-Fastener Torque-Tension Relationship
    load that prevents movement between joint members. Such movement is arguably the most common cause of structural joint failures. The relationship between applied torque and the tension created is described by the relationship: T = K x D x F = nut factor, sometimes called the friction factor, = bolt
  • Casing the extrusion joint
    compartment in Ford GT supercars. Some 35 different extruded profiles from form a stiff, strong, and lightweight platform. Chassis are assembled using a combination of robotic MIG and friction stir welding. In addition, bolt-on extrusions add structural support to the engine compartment and also
  • Why is the cylinder head warping? FEA has evidence
    ., used multiphysics FEA software from Pittsburgh, to study the thermal and structural behavior of a prototype diesel-engine cylinder head designed for lower heat rejection and increased power density. In the prototype, temperatures on a stainlesssteel cylinder head were measured at 1,600 F, almost
  • Servosystem deftly handles Airbus wings
    With a span nearly as long as a football field at 261 ft, producing a single Airbus A380 wing involves precisely positioning a massive structure to drill, rivet, and bolt approximately 180,000 holes. When the Airbus A380 takes wing later this year, it will be the world's largest commercial aircraft
  • Alltec Protection Pyramid
    p>Alltec Corporation introduces its new ground resistance monitoring product, the GRM2000, which addresses concerns on operator safety and system efficiency. Lightning is an unpredictable act of nature. A "bolt from the blue " can occur 10-20 miles from the cloud source, and power transmission

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