Prevention of fastener loosening, part 3

Monday, November 10, 2014
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In the first two instalments in this series on the prevention of fastener loosening, we talked about methods of chemical thread-locking before starting to look at some of the mechanical methods in common used, of which there are many. As mentioned b... read more
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Prevention of fastener loosening, part 2

Tuesday, September 30, 2014
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In last month’s article on this subject, the main topic of discussion was chemical threadlocking methods, but there is a little more to be said on this before looking at mechanical methods. The anaerobic liquid threadlocking compounds, while be... read more
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Prevention of fastener loosening part 1

Monday, August 18, 2014
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Threaded fasteners are an unavoidable part of building any engine. When we want to harness the energy contained in fuels, liberating this energy via a rapid series of small explosions, we need to be sure our engine assembly stays in one piece. The fo... read more
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Fatigue-resistant threadforms

Wednesday, July 09, 2014
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The term ‘fatigue resistant’ might be a little misleading, as it is not a quality that is in black and white but shades of grey, and any component can be made to fail through fatigue by subjecting it to a high enough level of cyclic stres... read more
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Using springs

Thursday, May 08, 2014
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When considering a bolted joint, and when explaining how it works under load to a novice engineer, it is often helpful to consider the components as springs. The joint and the bolt ‘share’ any imposed loads depending on coefficients that ... read more
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Corrosion caused by fasteners

Thursday, March 27, 2014
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When we talk about fasteners and corrosion, we are normally worried about the effect of the latter on the former, and how much the corrosion degrades the fastener’s performance, especially in terms of strength and particularly in terms of fatig... read more
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Radial engagement

Wednesday, February 19, 2014
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When we talk about the engagement of a male and female threaded fastener, it is commonly in the context of the length of engagement, which is often specified in order to prevent damage to the female thread by stripping or fatigue. However, there is u... read more
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Fastening to composite components

Wednesday, January 08, 2014
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Composite materials are becoming ever more common. While fibre-reinforced polymer matrix composites have made limited progress in the sphere of powertrain design and development, despite the efforts of some pioneers, they haven’t achieved the t... read more
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Fasteners for high-voltage applications

Monday, December 02, 2013
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The rise of the electric hybrid system has been rapid of late, though whether it is a lasting technology or simply a precursor to a widespread take-up of fully electric passenger cars is not yet clear. Electric motorsport has already established a fi... read more
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The perils of fastening thin components

Monday, October 07, 2013
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There is very often a need to fasten thinwall parts to other components. In the case of engines and transmissions, this might be cosmetic covers, airboxes, airhorns, electrical enclosures or any number of other items. The fastening of thin component... read more
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