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Thanks Greg - that is a great resource - Isn't the webwunnerful! Cheers Simon www.pukugolf.com

Thanks for the link DF I have looked through this site - great resource - but was thinking there is probably some detailed study out there somewhere? -- NASA ........... PHD thesis .... Shared Commercial Research .......Conference paper ??? Seems fastener failure is a big problem - I have...

Thanks DF My little company has about a dozen patents in process - mostly in fasteners, and my extreme lack of engineering knowledge has been both good (look at thing diferrently!) and bad (no idea on the maths etc!) Cheers Simon

Sorry about the double post _ I didn't see it as I hadn't realised I was posting to an existing topic Cheers Simon

Hi Generally bolted fasteners can fail due to mechanical failure (shear/strip) or loosening ........... Does anyone know of some credible research/report into 1. The relative importance of these and 2. The cost to industry (downtime $) Cheers Simon

Oops here is the web link Sorry! http://www.pukugolf.com/technology.overview.htm

Hi DesertFox _ thanks..... http://www.matweb.com/search/SpecificMaterial.asp?bassnum=MTP644 - Gives: Titanium 6-4 Tensile Strength, Ultimate 900 MPa 131000 psi Tensile Strength, Yield 830 MPa 120000 psi Modulus of Elasticity 114 GPa 16500 ksi Average of tension and compression...

Hi Need some help in designing a press - interference fit We have a 6-4 Titanium collar (OD 22.2mm ID TO BE DETERMINED) which we currently connect by loctite to a: 14.1mm OD, 13.1mm ID 304 Stainless tube (not annealed) 6mm insertion of tube into the titanium Despite our best efforts the...

Hi Need some help in designing a press - interference fit We have a 6-4 Titanium collar (OD 22.2mm ID TO BE DETERMINED) which we currently connect by loctite to a: 14.1mm OD, 13.1mm ID 304 Stainless tube (not annealed) 6mm insertion of tube into the titanium Despite our best efforts the...