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A new approach to the tightness checking of bolts
of tightening a threaded fastener is by applying a specific tightening torque. Below the yield point of the fastener, the relationship between the applied torque and the clamp force provided by the fastener, is linear. That is, double the torque and you …
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An online distance learning course for engineering ...
www.boltscience.comAn online distance learning course for engineering personnel involved in the torque tightening of threaded fasteners.
Essential skills training for Designers and Engineers
www.boltscience.comA concentrated one-day course on the skills and techniques for the successful analysis of bolted joints and threaded fasteners. The course …
96 TECHNICAL The loosening of prevailing torque …
www.boltscience.comFastener + Fixing Magazine • Issue 60 November 2009 TECHNICAL The loosening of prevailing torque nuts By Bill Eccles, Bolt Science Bill Eccles has recently carried out new research to validate his suspicions that axial loading in the presence
FASTENER - Bolt Science
www.boltscience.comFASTENER Thread Strength Analysis Program Bolt Science Limited www.boltscience.com Sheet 2 of 3 sheets 4) The effect which the bending of the threads, caused by the action of the fasteners tensile
The stronger the better is not necessarily the case …
www.boltscience.com30 TECHNICAL Typically the heat treatment involves holding the fasteners at a temperature of between 200ºC to 230ºC for between 2 hours - 24 hours.
Fastener + FIxIng technology Self-loosening of …
www.boltscience.comUnder repeated transverse movements this mechanism can completely loosen fasteners. To investigate the causes of loosening, Junker developed a test machine, the so-
the basics of bolted joints - Bolt Science
www.boltscience.comtechnical the basics of bolted joints Over the last sixty years great improvements have been made by the fastener industry in improving the design …
Article on Fatigue Failure of Bolts - Bolt Science
www.boltscience.com00 TECHNICAL Fatigue Failure of Bolts Within my lifetime, it used to be thought that metal fatigue was due, in some way, to the metallurgical nature of the material
BOLTCALC Training - Joint Analysis - Bolt Science
www.boltscience.comConsulting • Analysis Services • Software • Training © Bolt Science Limited 2003 - All Rights Reserved Email: info@boltscience.com URL: www.boltscience.com Page 1
Thread Stripping Analysis using the BOLTCALC …
www.boltscience.comConsulting • Analysis Services • Software • Training © Bolt Science Limited 2003 - All Rights Reserved Email: info@boltscience.com URL: www.boltscience.com
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www.tohnichi.comTorque control method Break point Yield point Elastic zone Plastic zone Axial tension Relational drawing Figure 2-3. Detail drawing Friction on the threaded portion 40% ... Reference literature: "Theory and calculation of threaded fasteners" Akira Yamamoto (Yokendo Co., Ltd.) 34 35
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INTERNATIONAL ISO STANDARD 16047
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www.unbrako.comdegree than any other threaded fastener you can purchase “off-the-self.” UNBRAKO socket cap screws offer resistance to a greater degree than any other threaded fasteners you can purchase “off-the-shelf.” TENSILE STRENGTH U.S. standard alloy steel socket head cap screws are made to strength levels of 180,000 and 170,000 psi to current ...
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